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Keysight Technologies FieldFox A Series, User Manual

Get the most out of your Keysight Technologies FieldFox A Series with the comprehensive User Manual. Easily download the manual for free from our website to maximize your device's performance and functionality. Whether you're a new user or a seasoned pro, this essential guide has you covered.

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Keysight N9927-90001 User’s Guide                                                                                                             13

How to Capture I/Q Data to a File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
How to modify the I/Q data measurement parameters  . . . . . . . . . . . . . . . . . . . . . . . . . 265

Using Markers (IQA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Noise Marker  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Band/Interval Power Marker  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Band Span Marker (Spectrum Only)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Interval Span Marker (Waveform Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Coupled Markers (Waveform Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Continuous Peak Search Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

Alignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Trace Display States (IQA Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

How to display the Trace States  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Other Features Available  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

12.   Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only)

Using OTA (Options 370 – LTE FDD and 377 – 5GTF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
About Over–the–Air (OTA) Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

LTE FDD Features (Option 370) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
5GTF Features (Option 377) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

How to Set Up Over–the–Air (OTA) Mode Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

OTA Setup Procedure   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Optional: Using RTSA to verify the signal quality (Requires Option 350 and Preamp Option 

235). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
How to Define a Cell or Cell(s) and Use OTA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

How to Set Up EMF Settings (Requires EMF (Option 358))  . . . . . . . . . . . . . . . . . . . . . . . . . 315

EMF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
EMF Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

How to Use Data Logging (OTA Options 370 and 377)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Screen Annotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Data Logging Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
To change Recording Configuration settings: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
How to Playback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

Other Features Available  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Glossary (OTA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

13. 5G Rapid Prototype Phased Array Antenna – Option 360

Using the Phased Array Antenna (Option 360) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
About Phased Array Antenna Measurements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Phased Array Antenna Features (Option 360) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Summary of Contents for FieldFox A Series

Page 1: ...ing models N9913A N9914A N9915A N9916A N9917A N9918A N9925A N9926A N9927A N9928A N9935A N9936A N9937A N9938A N9950A N9951A N9952A N9960A N9961A N9962A User s Guide Sie haben Fragen oder w nschen eine...

Page 2: ...to U S government customers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweu la The licen...

Page 3: ...o receive the latest updates by email subscribe to Keysight Email Updates at the following URL http www keysight com find MyKeysight Information on preventing instrument damage can be found at www key...

Page 4: ...A 12 00 Firmware Release CPU2 Updates Also applies to N991xA 2xA 3xA units with serial number prefixes 56071 For customers upgrading FieldFox firmware the following is a list of changes from the previ...

Page 5: ...keysight com find assist If you do not have access to the Internet please contact your Keysight field engineer In any correspondence or telephone conversation refer to the Keysight product by its mod...

Page 6: ...6...

Page 7: ...ON OFF Settings 29 Power Button LED Status 30 FieldFox High Temperature Protection 30 How to monitor the internal FieldFox temperature 30 Temperature Control Mode 31 High Temp Shutdown Warning RTSA Mo...

Page 8: ...surements 60 DTF Measurement Settings 62 DTF Settings Table 62 DTF Measurement Format 62 DTF Start and Stop Distance 63 Frequency Mode 63 Coupled Frequency 64 Cable Correction Specifications 65 Window...

Page 9: ...le or Continuous Measure 100 Resolution Number of Data Points 100 Sweep Time 101 Triggering 101 Output Power 103 System Impedance Z0 104 Port Extensions 104 Velocity Factor 105 Big Marker Display Stat...

Page 10: ...132 View Cal 134 Calibration Type 134 Isolation Step 137 Waveguide Calibrations 137 Enhanced Response Optimization 139 Interpolation 140 Cal ON Questionable Accuracy 140 Compatible Mode Calibrations 1...

Page 11: ...0 Triggering 172 FFT Gating Opt 238 175 Single Continuous Restart 177 Points 177 Trace Display States SA Mode 178 Average Type 179 Average Count 180 Alignments 180 Detection Method 188 Display Line 19...

Page 12: ...table 239 Trace Display States 240 Detection Method 241 Average Count Show Density Blue and Red Percentage Limits 242 Alignments 243 Display Line 243 Spectrogram Display 245 Spectrogram Display RTSA O...

Page 13: ...asurements 288 LTE FDD Features Option 370 288 5GTF Features Option 377 292 How to Set Up Over the Air OTA Mode Settings 294 OTA Setup Procedure 294 Optional Using RTSA to verify the signal quality Re...

Page 14: ...s Available 375 Troubleshooting 376 15 On the Box Mapping Option 352 Requires Spectrum Analyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 How to Install Node js and Running...

Page 15: ...9 How to Record a Session 430 How to Playback a Session 431 Recording Configuration 431 Frequency Mask Trigger Configuration SA Mode Only 433 Record Source 434 Playback Configuration 435 Manage Sessio...

Page 16: ...e and Frequency 464 Power Sensor Settling 466 Sweep Settings 466 Amplitude Markers 467 Trace Math 467 22 Pulse Measurements Mode Option 330 Supported Power Sensors 471 Switching between Pulse Measurem...

Page 17: ...ort Transmission Measurements 495 How to make a 2 Port Transmission Measurement 495 A B and B A Measurements 497 24 ERTA Extended Range Transmission Analysis Mode Option 209 Overview 500 Requirements...

Page 18: ...to Use DUT Measurement Setups 562 Single Continuous Restart 574 Points 574 Resolution Bandwidth Res BW 575 Alignments 575 Calculating Noise Figure Measurement Uncertainty 576 Using ENR Tables 581 Abo...

Page 19: ...ll about Trace Math 618 How to display data and memory traces 618 How to perform Trace Math 618 About Math Operations 619 All about Scale Settings 620 How to Use Scale Settings 620 Averaging CAT NA Po...

Page 20: ...Using the Discrete Colors Softkey Menu 649 System Configuration 649 Options Licensing 649 GNSS GPS and GPS 650 Frequency Reference Source 654 Variable Voltage Source Opt 309 656 Security Level 657 Da...

Page 21: ...the External Battery Charger N9910X 872 691 Reconditioning Battery 692 Battery Care 692 Maximizing Battery Life 692 Lithium Ion Battery Disposal 693 33 Safety Considerations For the FieldFox 696 For t...

Page 22: ...Class B EMC Declaration 713 Acoustic Statement European Machinery Directive 713 A Connector Care Review 716 B Specifications Data Sheet 718 C Instrument Calibration How Often Should Calibrate My Instr...

Page 23: ...zer N9918A 26 5 Vector Network Analyzer AND Spectrum Analyzer N9925A 9 Vector Network Analyzer N9926A 14 Vector Network Analyzer N9927A 18 Vector Network Analyzer N9928A 26 5 Vector Network Analyzer N...

Page 24: ...e FieldFox please visit http www keysight com find fieldfox Table 1 2 Accessories Accessory Part Number Description N9910X 873 AC DC Adapter except for US Canada a a Depending on your region the Field...

Page 25: ...latest FieldFox firmware Conventions that are used in the Manual Hardkey indicates a front panel button The functionality of these buttons does not change The six Softkey menus change dynamically and...

Page 26: ...oftware and Supplemental Help Denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a warning n...

Page 27: ...options are included in the shipment according to the Box Contents List 3 For any question or problems refer to Contacting Keysight on page 5 Meeting Power Requirements for the AC DC Adapter The AC DC...

Page 28: ...e the battery Learn more about the lithium ion battery in Chapter 32 Working with the Lithium Ion Battery on page 687 Battery charge status is viewable In the upper right corner of the screen On the B...

Page 29: ...h the FieldFox either ON or OFF The battery can be fully charged externally using the external battery charger in about 4 hours When the battery is removed the FieldFox can still be powered by the AC...

Page 30: ...e Mode hardkey Press Mode Then More Then Shut down You can make a setting to automatically Power ON the FieldFox when a power source is connected Learn how on Power ON on page 661 Power Button LED Sta...

Page 31: ...hold of above 64 C All applications except RTSA Power for internal circuitry is turned off between sweeps and delaying occurs for the next sweep In RTSA mode power is only turned off if the FieldFox i...

Page 32: ...above 64 C Displays for 3 sec Exiting Maximum Auto Protect Threshold Temperature Mode When the temperature drops to approximately 73 5 C a message is displayed indicating that the FieldFox is leaving...

Page 33: ...shut down the FieldFox will display a warning of imminent shut down and the instrument turns off At above approximately 77 C a Maximum Auto Protect message Top WARNING message displays for 9 sec Red...

Page 34: ...d hardkey to pause the sweep All applications including RTSA Display dims to 40 at 64 C Maximum Protect Initial 75 C When temperature reaches the maximum protection threshold 75 C some applications ta...

Page 35: ...Keysight N9927 90001 User s Guide 35 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Take the FieldFox Tour Front Panel...

Page 36: ...F charging Power Button LED Status on page 30 3 System Displays a sub menu for system setup System Settings on page 623 4 Function keys Includes Freq Dist Scale Amptd BW Sweep Trace Meas Setup Measure...

Page 37: ...changes to values 17 Softkeys Allows selection of settings for configuring and performing measurements and for other FieldFox functions 18 Screen Transflective screen viewable under all lighting cond...

Page 38: ...surements Maximum 50 VDC 27 dBm RF SA Mode Settings on page 148 GPS Ant SMA f connector for use with built in GPS Produces a 3 3 VDC bias voltage for the antenna pre amplifier Use with a GPS antenna s...

Page 39: ...3xA units with serial number prefixes 5607 models the mini USB port can be connected to your PC s standard USB port to send SCPI commands IMPORTANT It is recommended that only USB certified cables are...

Page 40: ...r Description Learn More Audio output jack for use with SA Mode Tune and Listen Tune Listen AM FM on page 161 DC Voltage Source for use with external DC Bias Variable Voltage Source Opt 309 on page 65...

Page 41: ...Mode dependent 5 Scale division Mode dependent 6 Calibration Status CAT and NA Detection Method SA Cal ON Questionable Accuracy on page 140 7 Velocity Factor Fault Meas About Velocity Factor and Cable...

Page 42: ...wer on page 53 14 Measurement Stop Freq or Distance Mode dependent 15 Actual Sweep Time Mode dependent 16 Limit Line Status All about Limit Lines on page 613 17 Time and Date Date and Time on page 643...

Page 43: ...a set of values Back erases previously entered values Esc exits data entry without accepting the new value To complete the setting press Enter or a different softkey or hardkey Multiplier Abbreviation...

Page 44: ...s and microscopic particles of dirt are difficult to remove from these surfaces Do not set connectors contact end down on a hard surface The plating and mating plane surfaces can be damaged if the int...

Page 45: ...ight com fieldfox help SupH elp FieldFox htm CAT Mode Distance to Fault measurements are discussed in Chapter 4 DTF Distance to Fault Measurements IMPORTANT For CAT and NA modes limit lines do not app...

Page 46: ...ments on page 55 2 Port Insertion Loss Measurements on page 57 Chapter 8 Calibration for NA CAT and VVM Modes on page 121 All about Markers on page 598 All about Limit Lines on page 613 All about Trac...

Page 47: ...refer to Chapter 4 DTF Distance to Fault Measurements Return Loss DTF Displays both a Return Loss measurement and a DTF measurement Use this format to display the frequency settings that are used to...

Page 48: ...axis of the display is impedance ohms TDR DTF TDR and DTF are displayed Quick Settings Table Both CAT and NA Modes allow you to view and change most relevant settings from a single location All of the...

Page 49: ...ies half on either side of center Follow each setting by entering a value using the numeric keypad arrows or the rotary knob After using the keypad select a multiplier key Learn about multiplier abbre...

Page 50: ...me data point over several consecutive sweeps Average Count determines the number of sweeps to average the higher the average count the greater the amount of noise reduction An average counter is show...

Page 51: ...Smoothing Press BW 2 Then Smoothing ON OFF Then Sm Aperture and enter a value between 0 and 25 percent using the numeric keypad Press Enter Single or Continuous Measure This setting determines whethe...

Page 52: ...ogramming Guide at http na support keysight com fieldfox help Sweep Time The fastest possible sweep time is always used as the default setting Use the Min Swp Time setting to slow the sweep time when...

Page 53: ...the displayed FieldFox frequency span Please see Specifications Data Sheet on page 717 for expected power levels Low Sets output power to approximately 45 dBm FLAT across the displayed FieldFox frequ...

Page 54: ...el of Interference rejection Maximum The highest level of Interference rejection Coupled Frequency This setting especially useful for a Return Loss DTF measurement allows both measurements to have dif...

Page 55: ...s the FieldFox to known settings Select Mode then CAT TDR Cable and Antenna Test Then Return Loss Default measurement Press Freq Dist and enter Start and Stop frequency values of the measurement Press...

Page 56: ...e prompts to perform calibration at the end of the jumper cable or adapter Learn more about Calibration in How to Perform a Calibration on page 123 9 Connect the cable to be tested 10 Connect a LOAD a...

Page 57: ...Fox signal source is transmitted out the RF OUT connector through the DUT and into the RF IN connector Both ends of the DUT must be connected to the FieldFox either directly or indirectly using the ca...

Page 58: ...est Mode 2 Port Insertion Loss Measurements When measuring very long lengths of cable it may be necessary to increase the sweep time Learn how on page 52 Learn why in the Supplemental Online Help http...

Page 59: ...ansmission line In this chapter the cable to be tested is referred to as the DUT Device Under Test Settings that are NOT unique to DTF measurements are documented in the CAT Mode Chapter 3 CAT Cable a...

Page 60: ...en Preset to return the FieldFox to the default settings 3 Then Mode then CAT 4 Then Meas 1 then DTF 5 Press Freq Dist then Stop Distance and enter the length of the DUT You can optionally set the Sta...

Page 61: ...es then Recall Cable or directly enter the Velocity Factor Cable Loss of the DUT using the Velocity Factor and Cable Loss keys 10 Connect the start end of the DUT to the FieldFox 11 Press Meas Setup 4...

Page 62: ...change the value When finished changing a value press Done Edit Press Dock Window to relocate the Settings table to a position relative to the trace window The setting persists through a Preset Choose...

Page 63: ...rrows or the rotary knob then Enter By default the Start Distance is set to 0 Meters This means that the measurement will display faults starting at the point at which calibration standards are connec...

Page 64: ...e for the DTF measurement Then Max Stop Freq and type the stop frequency to use for the DTF measurement OR Press More Then Max Freq Span and type the frequency range to use for the DTF measurement The...

Page 65: ...100 m 1dB m Because the FieldFox performs this measurement with 1 port the test signal travels down the cable and then back for a total loss of 20 dB After a calibration has been performed for the pur...

Page 66: ...these files or create new cable files using the following procedure or using the FieldFox Data Link Software The Cable correction data survives a Mode Preset and Preset With a DTF measurement present...

Page 67: ...etting Choose from Internal default setting USB must be connected or SD card About Cable files Cable files are saved to and recalled from the Cables folder If the folder does not already exist on a US...

Page 68: ...lity to choose between optimizing DTF measurements for resolving closely spaced faults or for the ability to measure low level faults How to select Window settings Press Meas Setup 4 Then Settings The...

Page 69: ...ult measurement For example with range resolution of 500 mm if the distance to fault is 10 meters this value could be inaccurate by 500 mm or between 9 5 to 10 5 meters This value is calculated from f...

Page 70: ...distance That is if a true fault is present at 10 3 meters changing the stop distance from 15 m to 20 m will not move the fault the fault will remain at 10 3 meters However an alias response will appe...

Page 71: ...type of problem in a length of cable or transmission line Settings that are NOT unique to TDR measurements are documented in Chapter 3 CAT Cable and Antenna Test Mode on page 45 In this chapter the ca...

Page 72: ...ttings 3 Then Mode then CAT TDR 4 Then Meas 1 then More then DTF Lin or TDR Lin rho or ohm 5 Press Freq Dist then Stop Distance and enter the length of the DUT You can optionally set the Start Distanc...

Page 73: ...or directly enter the Velocity Factor Cable Loss of the DUT using the Velocity Factor and Cable Loss keys 10 Connect the start end of the DUT to the FieldFox 11 Press Meas Setup 4 then Settings then N...

Page 74: ...F Lin The Y axis of the display is linear real unitless values X Axis displays distance to fault in meters TDR DTF TDR and DTF are displayed TDR Settings Table You can set and view all of the TDR sett...

Page 75: ...nt The minimum value of this setting is 100 MHz TDR Start and Stop Distance In TDR measurements you set the physical length of the DUT The FieldFox calculates the frequency range of the measurement fr...

Page 76: ...with frequency settings and using Inverse Fourier Transform IFT the time and distance to faults are calculated How to set Frequency Mode With a TDR measurement present Press Meas Setup 4 Then Freq Mo...

Page 77: ...100 m 1dB m Because the FieldFox performs this measurement with 1 port the test signal travels down the cable and then back for a total loss of 20 dB After a calibration has been performed for the pu...

Page 78: ...e following procedure or using the FieldFox Data Link Software The Cable correction data survives a Mode Preset and Preset With a TDR measurement present Press Meas Setup 4 Then DTF Cable Specificatio...

Page 79: ...older If the folder does not already exist on a USB or SD card it is created automatically before storing the file Cable files are stored as xml files Existing cable files that are preloaded into the...

Page 80: ...zing TDR measurements for resolving closely spaced faults or for the ability to measure low level faults How to select Window settings Press Meas Setup 4 Then Settings Then press arrows to move to the...

Page 81: ...ult X axis units for TDR measurement settings are displayed in Meters How to change TDR units With a TDR measurement present press Freq Dist Then More then Distance Unit m feet The current selection i...

Page 82: ...y factor c speed of light Points resolution Bandwidth frequency range Alias free Range On Off On No Alias images Off Alias images may appear in the response About Alias Faults An alias fault is not a...

Page 83: ...s The largest fault is the open end of the cable To avoid confusion set the Stop distance shortly after that fault How to Prevent Undersampling Undersampling is when the TDR measurement is inaccurate...

Page 84: ...84 Keysight N9927 90001 User s Guide TDR Time Domain Reflectometry Option 215 TDR Measurement Settings...

Page 85: ...on page 89 Receiver Measurements on page 90 Multi Trace Configurations on page 91 Quick Settings on page 92 Calibration Settings on page 93 Format on page 94 Frequency Range on page 95 Scale Settings...

Page 86: ...n page 105 Increase Dynamic Range on page 108 Why and When to Calibrate on page 122 All about Markers on page 598 All about Limit Lines on page 613 All about Trace Math on page 618 Learn how to make 7...

Page 87: ...t FieldFox receiver port in FieldFox source port The FieldFox automatically switches the internal source and receivers to make both forward and reverse measurements Therefore the FieldFox can measure...

Page 88: ...lti Trace Configurations on page 91 3 Press Freq Dist then either Start and Stop or Center and Span to enter a Frequency Range for the measurement 4 Press BW 2 then IFBW to select the IF Bandwidth for...

Page 89: ...ve S parameter trace to an equivalent impedance Z admittance Y or reciprocal 1 S parameter How to select parameter conversions Press Measure 1 Then select an S parameter Then More Then Conversion Then...

Page 90: ...ource port based on the selected receiver Port 1 Select when measuring transmission at B receiver Port 2 Select when measuring reverse transmission at A receiver Learn more about Raw Receiver Measurem...

Page 91: ...requency Range IF BW Resolution Average and Output Power settings are common for all displayed traces All other trace settings such as measurement format and limit lines are applied individually to th...

Page 92: ...viewing of the active trace Press System 7 Then Full Screen Press any key to return to the standard display Quick Settings Both CAT and NA Modes allow you to view and change most relevant settings fr...

Page 93: ...osition relative to the trace window The Dock Window setting persists through a Preset Choose from the following Full Default setting Only the Settings table is shown on the screen The trace window is...

Page 94: ...grees from 180 to 180 for easy scaling Smith Used mainly for S11 and S22 which are plotted on a Smith Chart Displays series resistance and reactance More then Polar Used mainly for S11 and S22 Display...

Page 95: ...using the numeric keypad the arrows or the rotary knob After using the arrows or the rotary knob press Enter The increment setting of the arrows is based on the current span and can NOT be changed in...

Page 96: ...a negative value by pressing Run Hold either before or after typing a value Ref Pos Manually set the position of the reference line Values must be between 0 TOP line and 10 BOTTOM line Magnitude Offs...

Page 97: ...mpensate for the linear phase shift through a device and view only the deviation from linear phase of the device You can set the electrical delay independently for each measurement trace To apply an e...

Page 98: ...in the left edge of the screen as Avg n where n is the number of measurements that are averaged Averaging can be set before or after calibration When set before calibration each calibration standard i...

Page 99: ...ng the IF receiver bandwidth reduces the effect of random noise on a measurement However narrower IF bandwidths cause longer sweep times How to set IF BW Press BW 2 Then IF BW Then choose from the fol...

Page 100: ...while the sweep occurs Continuous Makes continuous sweeps This is the typical setting when battery power is not critical You can also use Run Hold to toggle between Single and Continuous Resolution N...

Page 101: ...d Press a multiplier key Learn about multiplier abbreviations in Multiplier Abbreviations on page 43 Triggering External triggering NA and SA modes ONLY allows you to initiate a sweep when an external...

Page 102: ...her on the display When point mode trigger is already enabled if conditions are changed requiring forward and reverse sweeps an error Error Point trigger not compatible with 2 port cal will be display...

Page 103: ...Set the power level out of the FieldFox to High Low or manually set power level to a value between High and Low Generally the high power setting is used when measuring passive high loss devices to pla...

Page 104: ...pHelp FieldFox htm How to set System Impedance Press Meas Setup 4 Then Settings Then scroll to System Z0 and press Edit Then type either 50 or 75 and press Enter Port Extensions Port extensions allow...

Page 105: ...the delay adds together Learn more about Electrical Delay in Electrical Delay on page 97 How to apply Port Extensions Press Meas Setup 4 Then Port Extensions Then Port Extensions ON Then Port1 Extens...

Page 106: ...per Big marker readouts This is done by using up to two different display states called A and B Each display state is comprised of the settings listed below When the Big Readout setting is toggled thr...

Page 107: ...dout format the same as the display format Default is selected by default Mkr Tracking ON Select the parameter to track on the standard Marker Search menu OFF is selected by default When set to ON Pea...

Page 108: ...t to be valid input signals must be within these boundaries The following settings will increase the dynamic range of your NA mode measurement Increase Power Level Press Meas 4 then Output Power High...

Page 109: ...NOT unique to Time Domain are documented in Chapter 6 NA Network Analyzer Mode on page 85 In This Chapter Time Domain Transform Settings Trace Settings Overview on page 111 Transform Settings Table on...

Page 110: ...110 Keysight N9927 90001 User s Guide Time Domain Option 010 Gating Settings Start Stop Center and Span Gate Times on page 119 Gating Type on page 119...

Page 111: ...ds Each bend creates a mismatch or change in the line impedance The frequency domain of an S11 measurement shows reflections caused by mismatches in the cable It is impossible to determine where the m...

Page 112: ...settings require that you then press a softkey to change the value When finished changing a value press Done Edit Press Dock Window to relocate the Settings table to a position relative to the trace w...

Page 113: ...disabled Bandpass Impulse Easiest method can be used with any frequency sweep Most useful for measuring band limited devices such as filters and DC blocked cables This mode does NOT show capacitive a...

Page 114: ...e from m meters or Feet Window Layout This setting is used to create additional traces or select a new layout for traces that are already created Choose from x1 x2 x2H x3H x3 x4H Learn more about mult...

Page 115: ...orm Settings table Learn how in Transform Settings Table on page 112 Line Loss and Velocity Factor By default the FieldFox does NOT correct Time Domain measurements to account for the inherent loss of...

Page 116: ...pose of illustrating this point connect an OPEN to the end of the cable a maximum sized fault for 100 reflection of the 300 MHz test signal Without compensation for the loss of the cable a 20 dB respo...

Page 117: ...he specific trace Select the trace Press Measure Setup 4 Then Transform Then choose from Transform On Trace displays Time Domain data Transform Off Trace displays frequency domain data Gate Enable Ena...

Page 118: ...ed while viewing a Time Domain trace Then either disable Transform or separately view a frequency domain trace to see the trace with the gated effects removed The following image shows how gating can...

Page 119: ...ther Start and Stop or Center and Span Press Gating Start Stop A settings table appears that allows you to navigate and select the following settings These settings are made exactly like those made on...

Page 120: ...stopband For all filter shapes T2 is equal to T3 and the filter is the same on both sides of the center time Minimum gate span is twice the cutoff time Each gate shape has a minimum recommended gate...

Page 121: ...122 CalReady on page 123 How to Perform a Calibration on page 123 QuickCal N991xA 2xA 3xA Only on page 125 Mechanical Cal on page 127 ECal on page 130 Simple Response Cals on page 132 View Cal on page...

Page 122: ...ings before calibrating Increased Averaging lower IF BW and higher Resolution all cause slower sweeps and slower calibration times Learn about Interpolation and Questionable Accuracy in Interpolation...

Page 123: ...ency range of the FieldFox using a number of data points that allows reasonable interpolation over the FieldFox frequency range This calibration known as CalReady allows you to immediately make measur...

Page 124: ...nnect the DUT to the FieldFox test ports Learn more in QuickCal N991xA 2xA 3xA Only on page 125 Mechanical Cal ECal Using mechanical cal standards from a cal kit perform an accurate calibration at one...

Page 125: ...easurements of devices with female 3 5 mm or SMA connectors use mechanical calibration Important QuickCal Notes 7 16 connectors can be used with QuickCal ONLY up to 6 GHz Type N 75 Ohm can be used wit...

Page 126: ...ssarily calibrate all of the displayed S parameters Learn more about Cal Types in Calibration Type on page 134 Using the arrows or rotary knob select a Cal Type then press Select and Finish Press Star...

Page 127: ...the frequency span of the measurement until the error no longer appears After the calibration you can then decrease the frequency span as needed and rely on interpolation Learn more about Interpolatio...

Page 128: ...e all of the S parameters that you want calibrated If not press Esc to terminate the calibration process then return to the Trace menu to display all of the traces to be calibrated Learn how in Multi...

Page 129: ...ore about Cal Types in Calibration Type on page 134 To select a different Cal Type Press Change Cal Type Then using the arrows or rotary knob select a Cal Type Then press Select and Finish Begin Calib...

Page 130: ...er level Refer to the reference guide for your ECal module to determine the correct input power levels Exceeding an ECal s recommended input power level results in a compression and an invalid data co...

Page 131: ...ed Press Cal 5 to start the Calibration Press Mechanical Cal ECal Press Change DUT Connectors For each test port to be calibrated select the Connector Type and Gender of the DUT ECal module The connec...

Page 132: ...s generally low Use a Simple Response Cal to make quick measurements when using a jumper cable to connect the DUT to the FieldFox Otherwise CalReady is usually more accurate When prompted choose a sta...

Page 133: ...availability of this calibration on Port 2 may require an option Connect an OPEN or SHORT standard to the specified port and press Measure For 2 port measurements Select Normalization Connect a short...

Page 134: ...bottom box shows the S parameters that are displayed but NOT corrected by the current performed calibration but rather the CalReady calibration Learn more about CalReady in CalReady on page 123 Calib...

Page 135: ...nts sweeps in both directions regardless of the displayed measurements The displayed traces are updated at a slower rate than Enhanced Response and 1 port calibrations which require sweeps in one dire...

Page 136: ...Standards OPEN SHORT LOAD on ONE port Defined or Flush THRU between ports Sweeps in ONE direction TRL Mechanical Cal ONLY A complete 2 Port calibration with potentially better accuracy than Full 2 por...

Page 137: ...QuickCal How to perform the Isolation step Press Cal 5 then Mechanical Cal ECal Then Advanced Then Omit Isolation OFF Perform the Isolation step ON default Omits the Isolation step Then Back Configur...

Page 138: ...veguide settings These settings are necessary ONLY when making DTF measurements Press Measure 1 then Distance to Fault dB to select a DTF measurement Press Meas Setup 4 Then Settings Learn how to use...

Page 139: ...Ready this setting optimizes the calibration based on the type of DUT being measured See also CalReady Properties in CalReady on page 123 This setting does NOT survive Preset Press Cal 5 then More The...

Page 140: ...y When the Output Power Interference Rejection or IF BW NA Mode ONLY setting is changed AFTER performing a calibration a question mark is added to the Cal annotation For example Cal ON Q is shown on t...

Page 141: ...rt Cal default Corrects all four S parameters Requires a forward and reverse sweep which causes slower trace measurements Learn why in Calibration Type on page 134 Enh Response Corrects forward S21 an...

Page 142: ...ox screen Lower than 35 dB indicates a GOOD calibration Higher than 30 dB indicates that you should recalibrate Verifying Phase Accuracy Connect a LOAD standard at the calibration reference plane wher...

Page 143: ...ired and when using a jumper cable or adapter QuickCal is NOT recommended when the DUT has 3 5 mm female or SMA female connectors Even with the optional Load phase accuracy begins to degrade when the...

Page 144: ...144 Keysight N9927 90001 User s Guide Calibration for NA CAT and VVM Modes Calibration Method Summary...

Page 145: ...using the FieldFox Remote Viewer which enables you to view the FieldFox from your iOS device refer to http literature cdn keysight com litweb pdf 5991 2938EN pdf Figure 9 1 SA Display with Markers Th...

Page 146: ...ntenna Cable Editor on page 158 Source Tracking Offset and Offset Reversal on page 160 Tune Listen AM FM on page 161 Independent Source Tracking Generator on page 163 Resolution Bandwidth Res BW on pa...

Page 147: ...adio Standards and Channel Measurements on page 195 Measurement Preset on page 195 Averaging on page 195 Traces on page 196 Channel Power CHP on page 196 How to Set Up EMF Settings Requires EMF Option...

Page 148: ...the Reverse Swap feature can be used to quickly reverse the Start and Stop frequencies Learn how in Reverse Swap on page 153 The frequency range of the measurement can be changed using the following...

Page 149: ...arrows press Enter The increment setting of the arrows is based on the current span This can be changed in SA Mode See How to change frequency step size below After using the keypad select a multiplie...

Page 150: ...annel Measurement is selected such as ACPR other relevant settings will be changed such as Integration BW Learn more about Radio Standards and Channel Measurements in Radio Standards and Channel Measu...

Page 151: ...Press Freq Dist Then More Then Unit Freq Chan With Unit Chan Channel Direction becomes available and CF Step alters to Channel Step How to change the Channel Number of the Measurement With Unit Chan t...

Page 152: ...ase Chan Direction is grayed out Channel number X axis annotation Dn indicates Downlink channels Up not shown indicates Uplink channels indicates that the lowest frequency in the channel 128 is at the...

Page 153: ...the following Scale Type current setting Log Logarithmic scale default setting The Y axis reference line represents the specified absolute acquisition in the current Unit selection Y axis graticules...

Page 154: ...lifier or attenuator the SA mode trace amplitude values can be offset to compensate for the effect of the external device This effectively moves the reference plane of the SA measurement port out to j...

Page 155: ...hat you are looking at low level signals The RF Attenuation value is automatically lowered in 5 dB steps to allow low level signals to be viewed The RF Attenuation value is never automatically lowered...

Page 156: ...the signal power level Increase the RF Attenuation level by 5 dB If the signal level does NOT change then NO compression exists This indicates that the signal is in the linear region of the FieldFox...

Page 157: ...na Off On Edit Recall an Antenna file to be used to transmit RcvrSide Antenna Off On Edit Recall an Antenna file to be used to receive SrcSide Cable Off On Edit Recall a Cable file to be used on the S...

Page 158: ...e 9 2 FieldFox Antenna Editor How to use the Antenna Cable Editor Press New then Yes to clear all data from the existing Antenna or Cable table and reset header information to default settings Then Ed...

Page 159: ...re corrected Linear interpolation is applied between frequencies when necessary Optionally choose from the following Previous Next Page Quickly scrolls through pages of Freq Value data Add Row Add a b...

Page 160: ...S21 or Insertion Loss of a cable In NA mode select either LogMag Linear or VSWR formats 2 Use Manage Folders to change the active folder to CABLES Learn how in Manage Files on page 680 3 While in NA...

Page 161: ...o identify an interfering AM or FM signal The demodulated AM or FM signal can be heard through the internal speaker or through headphones using the 3 5 mm jack located on the FieldFox side panel The T...

Page 162: ...s you to listen to one frequency while displaying a different range of frequencies Set the Tune Frequency using one of three methods 1 Selecting Preset Mode Preset sets Tune Frequency to 3 25 GHz e g...

Page 163: ...0 and 100 loudest using the numeric keypad arrows or the rotary knob Volume can also be changed and easily muted from the System menu Learn more in How to set the FieldFox Volume Control on page 627...

Page 164: ...screen Coupled CW The source is set to a CW frequency but that frequency tracks the SA receiver Center Frequency settings Therefore the signal always appears at center of the display Srcp is annotated...

Page 165: ...the Res BW is narrowed less noise is measured by the spectrum analyzer ADC and the noise floor on the display lowers as a result This allows low level signals to be seen and measured However as the R...

Page 166: ...deo BW value using the numeric keypad the arrows or the rotary knob Then press a multiplier if necessary or press Enter Setting VBW higher than RBW may smooth the trace The current Video BW setting is...

Page 167: ...nt IF Output The FieldFox IF intermediate frequency can be output for external signal processing The signal is available from the IF Out connector on the FieldFox right side panel See the connector in...

Page 168: ...Zero Span in Zero Span Measurements on page 170 At least one sweep must be made in order to tune the FieldFox Press BW 2 Then Advanced Then IF Output Use Then choose from the following OFF The transl...

Page 169: ...til the pulse spectrum rises out of the noise and reaches its maximum level Increasing the SwpAcquisition value beyond this point only slows the update rate increases the actual Sweep time readout but...

Page 170: ...ry Long Sweep Times Two primary settings are responsible for the sweep time Res BW and SwAcquisition When the sweep time exceeds 1200 seconds 20 minutes an informational message Alert Very long sweep...

Page 171: ...t width and interval as shown How to set Zero Span Set Center to the frequency of interest then set Span to 0 Hz or select Zero Last Span Each key press toggles the frequency span between 0 Hz and the...

Page 172: ...the previous sweep ends External A sweep is triggered on an external TTL signal at the Ref In Trig In connector on the FieldFox top panel Choose to trigger on the rising slope at about 1 7 V or on th...

Page 173: ...the rotary knob Then select a multiplier key or press Enter Learn more in Multiplier Abbreviations on page 43 In Zero span you can use Trigger Position as an easy way to set Trigger Delay by positioni...

Page 174: ...ad Then select a multiplier key See Multiplier Abbreviations on page 43 Trigger Position Available ONLY in zero span measurements this setting is an easy way to automatically set the Trigger Delay by...

Page 175: ...are Trig Type VidT AutoTrigger a Pos Slope Neg Delay delay Horizontal arrow Trig Level green horizontal graticule at 20 dBm Vertical arrow Trig Position T zero indicators green arrows at 2nd vertical...

Page 176: ...35 at http literature cdn keysight com litweb pdf 5952 0292 pdf How to set FFT Gating Create a non zero span measurement Wider frequency spans take more time to acquire Press Sweep 3 Then Trigger Set...

Page 177: ...trace How to set Single or Continuous Press Sweep 3 Then choose one of the following Continuous ON Causes the SA to make continuous sweeps This is the typical setting for making measurements Each Run...

Page 178: ...nge its state Traces are displayed in the following colors Trace 1 Yellow Trace 2 Blue Trace 3 Orange Trace 4 Green Then State current setting Then choose from the following Trace States Clr Wr Clear...

Page 179: ...verage Type Press Meas Setup 4 then Average Type current setting Then choose from the following Auto The FieldFox chooses the most appropriate type of averaging for the current settings When Detection...

Page 180: ...ob Press Enter Alignments This section contains the following Overview on page 180 All Alignment and Align All Now on page 183 Individual Alignments on page 184 Overview All Alignment or Align All Now...

Page 181: ...o this for example if you are analyzing the amplitude stability of a signal SA and all modes built on its infrastructure require three types of alignments InstAlign Amplitude Alignment RF Burst Amplit...

Page 182: ...accessible via front panel soft keys Individual alignments cannot be UnCoupled For special cases the individual alignments can be accessible via the front panel soft keys using the Preference setting...

Page 183: ...nments are Coupled the state of all of them can be changed simultaneously using the All Alignment soft key sub menus when the individual alignments are UnCoupled they will be coupled when using the Al...

Page 184: ...n Preferences on page 637 in Chapter 29 System Settings See also Individual Alignments Individual Alignments IMPORTANT It is recommended that you use All Alignment Auto or Align All Now in lieu of the...

Page 185: ...t Press Cal 5 Then Individual Align Then Amptd Alignment Then choose from the following Auto Default setting Alignments are required and are performed automatically when necessary at times when interr...

Page 186: ...f the Mode was previously Off it is changed to Hold Amptd is annotated in the lower left corner of the FieldFox screen when amplitude alignment is questionable This is always true when OFF and is cond...

Page 187: ...rietary channel equalization algorithms to make extremely accurate channel measurements over the full frequency range of the FieldFox How to make Channel Equalization Alignments settings These setting...

Page 188: ...opped but the last alignment values are applied to subsequent sweeps OFF The alignment process is NOT performed and the channel equalization is deactivated ChanEq Align Now An alignment is performed i...

Page 189: ...on other settings is NOT shown Normal Nrm Provides a better visual display of random noise than Positive peak and avoids the missed signal problem of the Sample Mode Should the signal both rise and f...

Page 190: ...red method when making power measurements Display Line A display line is a simple horizontal line that can be placed at any amplitude level on the SA screen or set to any level in IQA Use a display li...

Page 191: ...d on page 188 With a Noise Marker present the Res BW can be changed and the displayed noise floor will also change but the Noise Marker readout will remain about the same Noise Markers can be used lik...

Page 192: ...n Then Band Int Power Then Band or Interval Span Then choose from the following Auto Measures power over 5 of the displayed span or graticules The Band Span is automatically updated to remain at 5 whe...

Page 193: ...this setting The default setting is OFF Learn more about Triggering with negative delay in Triggering on page 172 Press Mkr Tools Then More Then Mkr Properties Then Time Zero Fixed Then choose from th...

Page 194: ...ppears in the lower left corner of the screen when the FieldFox can NOT display accurate measurement results with the current settings Usually the part of the trace that is inaccurate is shown at 200...

Page 195: ...ge With Units CHAN selected the FieldFox chooses either the uplink or downlink band and displays that range of frequencies You can then tune within that Standard using Start CHAN Stop CHAN or Center C...

Page 196: ...in Average Type on page 179 To change Averaging Press Meas Setup 4 Then Average Enable ON OFF OFF effectively sets the Average Count to 1 Then Average Count Enter a value between 1 and 10 000 using t...

Page 197: ...ker Learn more about the Noise Marker in Noise Marker on page 191 How to select Channel Power Press Measure 1 Then Channel Measurements Then Channel Power When Channel Power is selected the following...

Page 198: ...z and 3 GHz using the numeric keypad arrows or the rotary knob Press Enter Other Channel Power Settings All relevant FieldFox settings are made automatically to ensure the highest accuracy such as Res...

Page 199: ...Occupied Bandwidth is selected the following settings are maintained from a previous measurement Center Frequency Preamp ON OFF and RF Attenuation Frequency Span Occupied BW is calculated from power...

Page 200: ...th Settings All relevant FieldFox settings are made automatically to ensure the highest accuracy such as ResBW VideoBW and sweep SwpAcquisition speed These and all other SA Mode settings can be change...

Page 201: ...art is always presented in dBm for the carrier and dBc dB below the carrier for the offsets This can NOT be changed Use the Meas Type setting next page to change how the data is presented in the table...

Page 202: ...Press Meas Setup 4 Then Integrating BW Enter a value between 100 Hz and 100 MHz using the numeric keypad arrows or the rotary knob Press Enter How to define adjacent Offset channels An offset represe...

Page 203: ...rrier and offset power levels in the table are presented Data in the graphical chart is always presented in dBm for the carrier and dBc for the offsets To select Meas Type Press Meas Setup 4 Then More...

Page 204: ...e 195 Learn about Averaging in Averaging on page 195 RRC Weighting RRC or Root Raised Cosign weighting is offered with Channel Power and ACPR measurements When RRC Weighting is applied to transmitted...

Page 205: ...User s Guide 205 SA Spectrum Analyzer Mode Channel Measurements Enter a value between 0 no smoothing and 1 most smoothing using the numeric keypad arrows or the rotary knob A standard level of filteri...

Page 206: ...y drive the Antenna to a particular axis X Y or Z The manual control thus allows any SA Receiver measurement to sweep that axis just like any other antenna transducer however without license the impor...

Page 207: ...EMF Features EMF has the following features EMF Measurement Results Measure and display corrected field strength in RMS average power Antenna control over X Y and Z antenna factors downloaded via USB...

Page 208: ...ght N9927 90001 User s Guide SA Spectrum Analyzer Mode How to Set Up EMF Settings Requires EMF Option 358 GPS Option 307 and SA Mode Option 233 Mixed Analyzers Figure 9 13 Example of EMF with Triaxial...

Page 209: ...Optional Press Antenna Axis the antenna axis should be set to Auto for default operation When AUTO is selected the application e g Channel Power or OTA controls the axes and switches as needed With t...

Page 210: ...urements are switched between the three different antennas three dipoles and the resulting summation of the total power collected and averaged Alternatively you can select either of three axes to indi...

Page 211: ...the System softkeys Verify the X axis Antenna Y axis Antenna and Z axis Antenna are all ON These can each be enabled or disabled individually but for EMF measurements all three axes should be enabled...

Page 212: ...r more of the following X axis Antenna enable disable the X axis antenna factors default is coupled to other settings Edit Antenna to edit the current imported X factor if available Refer to Editing A...

Page 213: ...press Edit Antenna to edit the existing X axial antenna factor s Frequency and Antenna Factor table values that are stored in the FieldFox Internal Antenna directory Refer to Figure 9 15 Then you can...

Page 214: ...nal Frequency and Antenna Factor values Press Delete Clear then choose one of these Delete Row when pressed this choice deletes the currently selected row of Frequency and Antenna Factors i e you must...

Page 215: ...two procedures illustrating how to edit the Cable Factors settings table values 1 Selecting an cable softkey menu Press Scale Amptd More Corrections then choose one of these softkey menus Cable Off t...

Page 216: ...or numeric keypad to select the table cell value to be edited i e the Frequency Interpolation value is not editable Then Press Edit Cable to edit your existing cable loss data or press New to add a a...

Page 217: ...SA Mode Option 233 Mixed Analyzers c Press Save Cable to save your changes See also File Saving Naming Options on page 645 and then to Alpha Numeric Editing on page 645 For more information See also...

Page 218: ...em to the carrier power The integration bandwidth method is used to perform a data acquisition The reference channel integration bandwidth Meas BW is analyzed using the user defined resolution bandwid...

Page 219: ...zer Mode Spectrum Emission Mask SEM SA Mode Only Spectrum Emission Mask Pass Fail A PASS indicates the displayed SEM is within the current boundaries specified A FAIL indicates the current signal fail...

Page 220: ...nnel Measurements Then Spectrum Emission Mask When SEM is selected the following settings are maintained from a previous measurement Center Frequency Preamp ON OFF and RF Attenuation Setting up the Fi...

Page 221: ...f Channel Opens the Reference Channel softkey menu Then select one of the following Integ BW Sets the Integrated bandwidth Ref Chan Span Sets the reference channel span usually set equal or greater th...

Page 222: ...et definition Power Ref the reference power value can be fixed which also fixes the Relative Limit line but the user must then consider the unit being used dBm or dBm Hz depending on the Meas Type sel...

Page 223: ...LINE defined by its two endpoints In the Limit menu Auto means to match the Start limit value hence creating a FLAT horizontal Limit Line segment But the Stop value can be manually set as well creatin...

Page 224: ...tion and another for all the Offset segments default Auto is PEAK to facilitate finding PEAK signal energy when comparing against Limits There is only 1 Trace available and like the other Channel Meas...

Page 225: ...at the SA RF IN connector For a comprehensive RTSA mode tutorial see Understanding and Applying Probability of Intercept in Real Time Spectrum Analysis App Note at http literature cdn keysight com li...

Page 226: ...h Res BW on page 234 Triggering on page 235 Single Continuous Restart Time Per Div on page 238 Points not user settable on page 239 Trace Display States on page 240 Average Count Show Density Blue and...

Page 227: ...frequencies Using Marker Center How to set Frequency Range Press Freq Dist Then choose from the following When you initially select I Q Analyzer Real Time SA or some of the other spectrum settings suc...

Page 228: ...g Full Span the frequency span changes to 10 MHz Follow each of these when prompted by entering a value using the numeric keypad the arrows or the rotary knob When using the arrows press Enter The inc...

Page 229: ...the external device This effectively moves the reference plane of the RTSA measurement port out to just beyond the external device For example when using an external preamp with gain of 10 dB enter th...

Page 230: ...low level signals to be viewed Man RF Attenuation is set manually Enter a value between 0 to 30 dB in 5 dB steps using the numeric keypad the arrows or the rotary knob Then press Enter Atten xx dB is...

Page 231: ...asurement Using a marker at the signal peak make note of the signal power level Increase the RF Attenuation level by 5 dB If the signal level does NOT change then NO compression exists This indicates...

Page 232: ...rum The signal is displayed as a real time spectrum Use real time spectrogram to quickly display measurements Refer to Figure 10 4 on page 234 In all three spectrum measurements there are four availab...

Page 233: ...r s Guide 233 RTSA Real Time Spectrum Analyzer Mode Option 350 CPU2 Only RTSA Mode Settings Figure 10 2 Density Spectrum Histogram with 2 Pulses Blue color indicates pulse that occurs less frequently...

Page 234: ...allows low level signals to be seen and measured How to set Res BW Press BW 2 Then Res BW For best results use the AUTO setting for the Res BW values Increasing the resolution BW could reduce pulse m...

Page 235: ...enable you to initiate an RTSA mode sweep using an external event such as a signal burst Trigger Type Press Sweep 3 Then Trigger Settings Then Trig Type Then choose from the following Free Run Trigger...

Page 236: ...repeats at the period rate entered Periodic trigger s phase can be altered by the Offset value Then choose from the following Period Enter a value for the trigger to repeat 100 ns to 400 ms Offset En...

Page 237: ...main can cause broadband e g pulsed signal energy to display at lower power levels than the peak power levels of the time domain signal Therefore you may need to the set trigger level higher than the...

Page 238: ...feature Also you can press Trig Hold Off OFF Trigger Settings Annotation Trigger settings are annotated on the FieldFox screen as shown in the following figure Trig Type VidT AutoTrigger a Pos Slope H...

Page 239: ...ounter to 1 If Continuous sweep is OFF it also causes Average Count n sweeps to occur if any Trace State is set to RMS Average MinHold or MaxHold This softkey is also used to clear the Spectrogram dis...

Page 240: ...ing Trace States Clr Wr W Clear Write Displays the actual measured data for each sweep MaxHold M Displays the maximum response of the input signal at each data point over multiple sweeps See also Aver...

Page 241: ...labeled on the left edge of the screen A corresponding letter appears below the corresponding Trace number selected For example N means that Normal was the selected detector Press Trace_6 Then Detecto...

Page 242: ...t Density Spectrum Only Changes the percentage of the trace that has a blue limit 0 05 to 100 default is 0 05 This setting is coupled to the color bar in the upper right corner of the FieldFox display...

Page 243: ...States RMS Average MaxHold or MinHold when Sweep 3 Continuous is set to OFF press Restart to reset the sweep count to 1 perform n sweeps then return to Hold How to set Average Count Press Meas Setup...

Page 244: ...TSA Mode Settings Figure 10 5 Display Line with Annotations How to create and move a Display Line Press Limit __8 Then Display Line OFF ON Then enter a Y axis value using the arrows or the rotary knob...

Page 245: ...ram draws the most recent trace record at the bottom of the stack of previously drawn trace records Drawing the live trace on the display is optional Figure 10 6 Spectrogram display Overlay view How t...

Page 246: ...ts to the power levels that you expect to measure The Blue limit must always be less than the Red limit For RTSA Mode Press Meas Setup 4 Then choose from the following Red Limit Using the arrows rotar...

Page 247: ...set or Mode Preset an Instrument State is recalled or when Mode is changed from RTSA Each session is saved as a folder containing a set of files on the specified storage device How long can a recordin...

Page 248: ...ed Clear All Records Empties that session of recorded traces Learn more in Manage Sessions on page 254 FieldFox Setting Changes during Record and Playback During Recording When any of the following St...

Page 249: ...tate cannot be modified No measurement post processing is allowed and no Density or Spectrogram information can be recovered This is because RTSA s Real Time Spectrum and Density displays are not deri...

Page 250: ...cremented with each new session The name can be changed using Manage Sessions Learn more in Manage Sessions on page 254 92 95 is the current and total trace number currently trace is 92 of 95 total tr...

Page 251: ...t the current recorded trace This allows you to quickly move to this location during playback Learn more in About State and User Tags in About State and User Tags on page 249 How to Playback a Session...

Page 252: ...last recorded trace Record Playback Setup Return to the setup menu to change Configuration settings or Close the session Recording Configuration To change Recording Configuration settings Press Trace...

Page 253: ...ss Pause Resume or Record to capture another N traces or Stop to end recording Default is OFF which is NO limit to the number of traces to be recorded When set a counter appears in the lower left corn...

Page 254: ...back of a session Record a new session or Open an existing session Press Playback Configuration Then Playback Interval Enter a value in seconds between 0 no delay and 100 using the numeric keypad arro...

Page 255: ...same storage device with Copy n _ appended to the beginning of the name so that duplication is prevented Copy All Copies ALL of the listed sessions to a different storage device or the same storage de...

Page 256: ...256 Keysight N9927 90001 User s Guide RTSA Real Time Spectrum Analyzer Mode Option 350 CPU2 Only Record Playback RTSA Option...

Page 257: ...or IQA mode requires the FieldFox to have SA mode and CPU2 installed Figure 11 1 IQ Analyzer IQA Display LTE TDD signal captured using the FieldFox s I Q analyzer The FieldFox can be used with an OML...

Page 258: ...IQA on page 276 Noise Marker on page 276 Band Interval Power Marker on page 277 Band Span Marker Spectrum Only on page 278 Interval Span Marker Waveform Only on page 278 Coupled Markers Waveform Only...

Page 259: ...Analyzer IQA Option 351 CPU2 Only See Also Why and When to Calibrate on page 122 All about Markers on page 598 All about Limit Lines on page 613 All about Trace Math on page 618 Chapter 28 Data Analy...

Page 260: ...frequency domain and time domain spectrum measurement and waveform measurement are based on the same I Q acquisition The following acquisition parameters are automatically calculated to satisfy these...

Page 261: ...ow to Capture I Q Data to a File on page 262 1 Press Preset then Mode Preset Factory 2 Press Measure 1 then choose from the following Spectrum Freq Domain Default Selects frequency spectrum as the cur...

Page 262: ...be set to Single or 1 all data saved into a single file for the current displayed data or Multiple When using Multiple as the file count the user can enter the number of files to save and the FieldFox...

Page 263: ...er 31 File Management default IQDataFile Back Returns to the previous softkey menu Capture Settings then choose one of the following Capture Time Sets the length of the I Q trace capture time default...

Page 264: ...the file is deleted Refer to Example on page 265 Each time you press the Start softkey the I Q data writes to the current filename i e Single capture default is IQDataFile csv or for Multiple format i...

Page 265: ...stops If file number 175 has not been saved it is deleted But I Q data files 1 through 174 that have been saved prior to pressing Stop are still saved for reference See also Chapter 31 File Management...

Page 266: ...Flat Top Then select one of the following There is a significant difference between resolution BW in FFT measurements and the resolution BW of a traditional sweeping spectrum analyzer SA measurement T...

Page 267: ...whose maximum side lobe level is 70 dB K B 80 dB This is a Kaiser Bessel window whose maximum side lobe level is 80 dB K B 90 dB This is a Kaiser Bessel window whose maximum side lobe level is 90 dB...

Page 268: ...aveform measurement default 0s minimum 0s maximum dynamic In Waveform mode Setting the Start and stop time enables you to display a subset of the data on the display in order to speed up the refresh r...

Page 269: ...Then select one of the following Softkey Description Free Run Default Triggering is provided by the FieldFox internal circuitry A new acquisition begins when the previous acquisition ends External An...

Page 270: ...ult 0 ms minimum 0s maximum 5 ms Auto Trigger While waiting for a valid trigger signal Wait is annotated in the top left corner of the FieldFox screen If a valid trigger signal is not received before...

Page 271: ...ngs The Trace menu is used to modify the existing predefined view or create a customized view Window and Win State softkeys are used to modify layout of view the Data softkey is used to specify the di...

Page 272: ...uency Settings Press Freq Dist Then select from the following Center Sets the center frequency of the measurement trace default 1 GHz minimum 0 Hz maximum FieldFox model dependent Time Summary Time Su...

Page 273: ...sumes that you are looking at low level signals The RF Attenuation value is automatically lowered in 5 dB steps to allow low level signals to be viewed The RF Attenuation value is never automatically...

Page 274: ...etting default 0 See Attenuation Control on page 274 Ref Pos Manually set the position of the reference line Values must be between 0 TOP line and 10 BOTTOM line Default position is zero top default 0...

Page 275: ...eans manual setting Default 10 dB minimum 0 dB maximum 30 dB Preamplifier Control Opt 235 When very low level signals are analyzed an internal preamplifier can be used to boost the signal level by app...

Page 276: ...ove the Noise Marker until consistent measurements are displayed in adjacent data points With a Noise Marker present the Res BW can be changed and the displayed noise floor will also change but the No...

Page 277: ...a channel power measurement see SA chapter Channel Power CHP on page 196 When the IQA is set to a waveform measurement the marker is referred to as an Interval Marker because it averages power over a...

Page 278: ...power Then press More Then Marker Function Interval Span Enables or disables the Band Span marker default 5 of the start time stop time minimum 1 ns maximum 10s Coupled Markers Waveform Only When a Co...

Page 279: ...Normal 5 Press Esc 6 Repeat steps 3 through 5 while selecting the other measurement windows and markers Real using marker 2 and Imaginary using marker 3 7 Press Marker More Coupled Markers ON 8 Press...

Page 280: ...on page 598 Summary Cont Peak Search Enables or disables the continuous peak search The rules for finding the peak are exactly the same as for Peak Search including the use of peak criteria rules How...

Page 281: ...d in the following colors Trace 1 Yellow Trace 2 Blue Trace 3 Orange Trace 4 Green Then State current setting Then choose from the following Trace States Clr Wr Clear Write Displays the actual measure...

Page 282: ...sitions See also Average Count in Adjusting the Measurement Setup Settings on page 270 Average Each data point is averaged over multiple acquisitions as set by the Average Count setting Learn more in...

Page 283: ...Features Available External Gain Refer to refer to the SA chapter s section External Gain on page 154 Limit Lines For information on using Limit Lines refer to All about Limit Lines on page 613 Displ...

Page 284: ...284 Keysight N9927 90001 User s Guide IQ Analyzer IQA Option 351 CPU2 Only Other Features Available...

Page 285: ...ion when users move between cell towers on the same 5G network as well as in between 5G and 4G networks intra inter radio access technology The FieldFox OTA measurements support LTE FDD Option 370 and...

Page 286: ...y the signal quality Requires Option 350 and Preamp Option 235 on page 304 How to Define a Cell or Cell s and Use OTA on page 305 How to Use Data Logging OTA Options 370 and 377 on page 322 Screen Ann...

Page 287: ...he ability to measure and display a single cell Four Display Types Bar chart color coded based on the selected scheme CC PCC Level Table Strip Chart Spectrum Color Coded Display Types Specify high and...

Page 288: ...ence Noise Ratio dB Frequency error Hz Data Formats User can set up and display 1 2 3 or 4 simultaneous measurements of key performance indicators KPI s for any component carrier CC0 through CC4 up to...

Page 289: ...Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only About Over the Air OTA Measurements Strip Chart Magnitude of selectable cell scan result metric graphed over time Figure 12 1 Example...

Page 290: ...90001 User s Guide Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only About Over the Air OTA Measurements Figure 12 2 LTE FDD Bar Chart CC Example Figure 12 3 LTE FDD Bar...

Page 291: ...e 291 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only About Over the Air OTA Measurements Figure 12 4 LTE FDD Bar Chart Level Example Figure 12 5 Example of the 5GTF wit...

Page 292: ...for any component carrier CC0 through CC7 up to 8 carriers in any combination of the following Table Cell scan numeric results for up to 6 cell sites ID s including Cell ID Channel Power PSS SSS Sync...

Page 293: ...ht N9927 90001 User s Guide 293 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only About Over the Air OTA Measurements Figure 12 6 Example of 5GTF Single Carrier and Single...

Page 294: ...d the corresponding number on the adjacent Satellite Power chart The right portion of the screen displays Satellite Power Carrier to Noise C No dBHz values on the tops of the satellite power chart The...

Page 295: ...the available signals Refer to the steps below and see also How to Define a Cell or Cell s and Use OTA on page 305 4 Define some carrier and cell measurement information See also How to Define a Cell...

Page 296: ...avorites List opens a softkey menu where you can save your current Band and Channel setup Then Setup 1 In the Favorites list softkey menu the softkey displays the current Band and Channel displayed e...

Page 297: ...power level and color scale for high power channels Blue Limit to set the power level and color scale for low power channels Others Scale Ref Level etcetera as desired 12 Optional i e If the Scan Resu...

Page 298: ...Settings choose File Name enter a filename Device choose where to store your data files File Type CSV or KML choose a file type Default KML or File Overwrite OFF ON Then Back If after making the sett...

Page 299: ...Then choose from the following Press Save Log File to save the current Table data i e default save device is Internal i e KML default or CSV files are saved to the filename and device type See Setting...

Page 300: ...ell selected but other cells displayed when CC0 to CCn has been enabled If ALL is selected only the CC with the highest power is displayed Not all of the detected data is displayed Figure 12 8 Example...

Page 301: ...0001 User s Guide 301 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up Over the Air OTA Mode Settings Figure 12 9 Example of the 5GTF Scan Results Table Two...

Page 302: ...uide Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up Over the Air OTA Mode Settings Additional LTE FDD Examples Figure 12 10 Example of LTE FDD with Single...

Page 303: ...ser s Guide 303 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up Over the Air OTA Mode Settings Figure 12 11 Example of LTE FDD with Multiple Carriers Singl...

Page 304: ...t Center Default 751 MHz For this example Center 751 MHz Press Scale Amptd Then Preamp ON Then Ref Level Default Then use the arrows the rotary knob or numeric keypad to position the trace for optimum...

Page 305: ...settings Define component carrier s CCs settings Example Using OTA LTE FDD or 5GTF refer to Step 1 LTE FDD Option 370 and 5GTF Option 377 Component Carrier CC and Cell Defined on page 305 Then Step 2...

Page 306: ...menu to save your Setup n For 5GTF instrument dependent 4 Select Trace 6 choose Window 1 2 3 4 Then Win State OFF ON to ON Then Data Table or Bar Chart or Spectrum or Strip Chart Then CC select compon...

Page 307: ...a LTE FDD Press FreqError Th and change to 5 kHz Wait a few seconds until Table populates or set FreqLock Range to Extended Then change back to the desired Frequency Error Threshold for your measureme...

Page 308: ...tings Press System FrequencyRef Internal Back Step 2 Select Trace Type Select one of the following display orientations Press Trace 6 choose Table or Bar Chart or Spectrum or Strip Chart or Figure 12...

Page 309: ...Chart Display Type 5GTF Step 3 Modify Scale and the Display Color Bar Settings To assign colors to low and high power values 1 Press Scale Amptd Red Limit to set high power values and to set the color...

Page 310: ...4 Enable Recording and Record Data Logging Results Recording creates a record of your data with a timestamp and GPS stamp refer to GNSS GPS and GPS on page 650 GPS must be enabled for the log results...

Page 311: ...Press Measure 1 Record Playback Settings Meas Interval ON 2 Press Interval Type Time default or Distance then Time Interval 1 sec to 999 seconds or Distance Interval from 1m to 10 km When done press...

Page 312: ...nge the top reference position in the Bar Chart Strip Chart and Spectrum Red Limit to change the color bar Blue Limit to change the color bar 4 Press Stop to exit the log playing To pause the log play...

Page 313: ...edit the file name under Settings File Settings where the file results will be stored and the File Overwrite settings 4 Press Back Back Step 6 Import and Play back KML Files into 3rd Party Software Ex...

Page 314: ...sight N9927 90001 User s Guide Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up Over the Air OTA Mode Settings Figure 12 18 Importing a KML File Into Google...

Page 315: ...ty Requires EMF Option 358 and SA mode Option 233 Mixed Analyzers This section consists of EMF Features EMF Setup Procedure EMF Features EMF has the following features EMF Measurement Results Measure...

Page 316: ...he Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up EMF Settings Requires EMF Option 358 Field Strength units dB V m For use with E field signals dB A m For use with...

Page 317: ...N9927 90001 User s Guide 317 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up EMF Settings Requires EMF Option 358 Figure 12 19 Example of EMF with Triaxial...

Page 318: ...ion this may take 5 seconds or so and vary with the Triaxial antenna Press USB Antenna then When the USB antenna correction factors are imported EMF Option 358 couples many settings to ease setting up...

Page 319: ...ntenna refer to Chapter 14 USB Antennas Full Capability Requires EMF Option 358 and SA mode Option 233 Mixed Analyzers 5 Once you have finished with your USB antenna setup a Press Sweep 3 Single Resta...

Page 320: ...to Set Up EMF Settings Requires EMF Option 358 6 Verify EMF in 5G NR Mode a Press Mode OTA 5G NR then b Press Meas Setup 4 More EMF dBuV m i e For this example Other units are selectable For more info...

Page 321: ...s Guide 321 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only How to Set Up EMF Settings Requires EMF Option 358 Figure 12 21 Using SA Mode Example to Verify the Triaxial...

Page 322: ...back session the following is displayed in the top center area of the screen Rec 55 55 2018 12 31 03 26 11 PM where 55 55 is the current and total trace number currently trace is 55 of 55 total scans...

Page 323: ...x labeler on page 674 File Save to opens a softkey menu to enable you to save your data log and related file settings For more refer to To change Recording Configuration settings on page 323 Record Se...

Page 324: ...hen Back Back Learn more refer to Chapter 31 File Management How to Playback Press Measure 1 If the session is already open skip the following step Otherwise Then Record Playback Then Playback Then Re...

Page 325: ...ing a trace number to playback between 1 and the record length MAXimum 2000 multiple CC and 1000 single CC Other Features Available Alignments For information on using alignments refer to the SA chapt...

Page 326: ...Freq Lock value is enabled and then adjust settings to improve your measurementFor 5GTF Check that the Frequency Correction Threshold value Sync Corr Th is small enough or not too large ADC errors Us...

Page 327: ...m RSRQ Reference Signal Received Quality dBm RSSI Reference Signal Strength Indicator dBm SINR Signal to Interference Noise Ratio dB SSS SSS is the Secondary Synchronization signal for an LTE downlink...

Page 328: ...328 Keysight N9927 90001 User s Guide Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only Glossary OTA...

Page 329: ...radiated from gNB Calibrated metrology milli meter wave phased array antenna simulates 5G UE antenna performance Troubleshoot the 5G radio access network with 3D test coverage and path loss measuremen...

Page 330: ...Option 360 on page 352 How to Record Playback Option 360 on page 359 Screen Annotation on page 359 How to Record on page 360 To change Recording Configuration settings on page 361 How to Playback on p...

Page 331: ...te Heat Map Polar Antenna Park Antenna Polar with Image Overlay Color Coded Display Types Specify high and low power with color bars Azimuth and Elevation 8 x 8 phased array antenna Covers beam sweep...

Page 332: ...e following Bore Sight Elevation angle is fixed Scan azimuth 60 degrees to 60 degrees Heat Map Scan both elevation and azimuth angle with adjustable color heat amplitude scale Polar ANT Scan azimuth a...

Page 333: ...ysight N9927 90001 User s Guide 333 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 1 Example of local point to point LAN connection Tripod not includ...

Page 334: ...34 Keysight N9927 90001 User s Guide 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 2 Bore Sight Scan CW RF Figure 3 Polar Scan with compass displaye...

Page 335: ...Keysight N9927 90001 User s Guide 335 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 4 Heat Map Azimuth vs Elevation Parked Antenna...

Page 336: ...01 User s Guide 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 5 Heat Map and Undocked Active Entry Parked Antenna Scan elevation angles 90 degrees a...

Page 337: ...Keysight N9927 90001 User s Guide 337 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 6 Polar Assign Orientation and Polar with Compass Orientation...

Page 338: ...eysight N9927 90001 User s Guide 5G Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 7 Polar Measurement with Compass with Recalled Image of Indoor Audito...

Page 339: ...About Phased Array Antenna Measurements CW vs Pulsed RF Measurements Figure 7 1 Bore Site Measurement with CW RF Dwell Time 10 ms Max Hold OFF IMPORTANT For pulsed RF measurements increasing the Dwell...

Page 340: ...Rapid Prototype Phased Array Antenna Option 360 About Phased Array Antenna Measurements Figure 8 Bore Site Measurement with Pulsed RF Dwell Time 10 ms Max Hold OFF Figure 9 Bore Site Measurement with...

Page 341: ...p Procedure Optional Using RTSA to verify the signal quality Requires Option 350 and Preamp Option 235 Figure 10 Setting Up Option 360 Using Other Modes Option 360 Setup Procedure 1 Connect your equip...

Page 342: ...ields must match the Static IP address of FieldFox For example if the Ball Antenna IP address is 192 168 1 10 set FieldFox Static IP address to 192 168 1 xx xx must be different number than shown in t...

Page 343: ...ght N9927 90001 User s Guide 343 5G Rapid Prototype Phased Array Antenna Option 360 How to Set Up Phased Array Antenna Settings Figure 12 Site Wide LAN Configurations and Field Measurements Configurat...

Page 344: ...Guide 5G Rapid Prototype Phased Array Antenna Option 360 How to Set Up Phased Array Antenna Settings Figure 13 Site Wide LAN Configurations and Field Measurements Configurations Azimuth and Elevation...

Page 345: ...ge 351 Select Meas Setup Antenna Settings choose Ball Antenna LAN Address Settings choose Res BW or Video BW Beam Width Array Antenna choose Center Azimuth Ref Elevation Ref Polar Display Ref Sweep Dw...

Page 346: ...of the displayed trace More choose Marker Trace You can set up to four traces Marker Table Enable or disable the marker table that displays the current markers and their values Learn more about marke...

Page 347: ...mmediately The Save the log file menu opens Edit the filename and press Done to exit menu See Settings below and To change Recording Configuration settings on page 361 To change your file settings or...

Page 348: ...cess as needed for additional settings 12 Optional Press Freq Dist Press Antenna Settings opens the table antenna settings softkey menu where you can define your phased array antenna settings Ball Ant...

Page 349: ...nformation Picture PNG to save the current displayed trace as a PNG Data CSV save files as a CSV file Learn more refer to Chapter 31 File Management 15 Optional Modify scale and amplitude values Press...

Page 350: ...60 How to Set Up Phased Array Antenna Settings Figure 14 Example of Phased Array Antenna and FieldFox Static IP Setup First Three Static IP Fields Are the Same Setting the phased array antenna IP addr...

Page 351: ...Keysight N9927 90001 User s Guide 351 5G Rapid Prototype Phased Array Antenna Option 360 How to Set Up Phased Array Antenna Settings Figure 15 Example Antenna Settings Table...

Page 352: ...Record Data Logging Results on page 356 on page 358 Step 7 Import and Play back KML Files into 3rd Party Software Example Google Earth with Animation Tool on page 358 Step 1 Connect Your Equipment Co...

Page 353: ...Using the arrows the rotary knob or numeric keypad to select Apply Settings 10 Press Edit then select Now 11 Press Done Edit Done Step 3 Define the measurement 1 Press Preset then Mode Preset Factory...

Page 354: ...when Interval Type Time or v Distance Interval if applicable only active when Interval Type Distance vi Auto Save OFF ON vii Back to return to previous menu e Save Recall Rec Playback Save Log File R...

Page 355: ...ettings on page 341 Polar Size Max Med Min or Polar Orientation or Image Enable OFF ON or Recall Image or Compass Image OFF ON or Compass North or Step 5 Modify Scale and Attenuator Settings To set th...

Page 356: ...CCs including timestamps and or distance stamps Timestamps are included in log files with or without GPS GPS must be enabled for log altitude results Data results can be logged Data results can be sav...

Page 357: ...Recall Rec Playback where the file results will be stored 7 Press Back Playing a Recorded Log and Viewing the Data To play the log results 1 Press Save Recall Rec Playback Recall Logs And use the Use...

Page 358: ...ple Google Earth with Animation Tool Features Use the Playback Slider to replay measurement results See also Google Maps and or Google Earth s help Refer to Figure 16 on page 358 Open the FieldFox KML...

Page 359: ...screen Rec 55 55 2018 12 31 03 26 11 PM where 55 55 is the current and total trace number currently trace is 55 of 55 total scans 2018 12 3103 26 11 PM is the date and time of recording The name of a...

Page 360: ...Then Data Logging If Recording or Playback is not occurring when you think it should check the following Is the sweep in HOLD upper left annotation or check the Sweep menu for Continuous set to OFF Is...

Page 361: ...og File to save the current Table data i e default save device is Internal Then Record Settings To change your measurement interval settings Learn more refer to To change Recording Configuration setti...

Page 362: ...playback When the end of the recording is reached playback begins at the start of scan and continues to loop indefinitely During playback choose from the following Pause Resume Temporarily halts playb...

Page 363: ...nformation on using alignments refer to the SA chapter s section Alignments on page 180 Scale Settings For information on using scale settings refer to the Data Analysis chapter s section All about Sc...

Page 364: ...ify the correct Antenna Settings have been entered The FieldFox s displayed annotation indicates Check LAN connection Check IP address during pinging Verify The LAN address for first 3 fields matches...

Page 365: ...e and antenna test CAT full 2 port vector network analysis spectrum analysis and real time spectrum analysis RTSA the FieldFox can be used for base station setup and verification With USB Antennas p o...

Page 366: ...yzers Triaxial antenna performance verification showing bore sight polar antenna pattern with compass heat map and beam sweep to map display views Measure and display corrected field strength in RMS a...

Page 367: ...How to Set Up a USB Antenna on page 371 USB Antenna Setup Procedure on page 371 Other Features Available on page 375 Alignments SA chapter Alignments on page 180 External Gain SA chapter External Gain...

Page 368: ...tenna X Y Z Cable triaxial connection Cable Receiver Side Antenna Receiver side Cable Source Side Antenna Source Side Antenna Triaxial off Source and Receiver sides Color Coded Display Types Specify h...

Page 369: ...and are not user settable USB Antenna Features USB antenna feature has the following features SA mode automatically detect if Import antenna factors are present applies correct X Y Z antenna amplitud...

Page 370: ...927 90001 User s Guide USB Antennas Full Capability Requires EMF Option 358 and SA mode Option 233 Mixed Analyzers About USB Antenna Measurements Figure 14 3 Example Verifying the Triaxial Values Axis...

Page 371: ...the mode and set up your measurement Refer to Chapter 12 Over the Air Measurements OTA LTE FDD Option 370 and 5GTF Option 377 CPU2 Only or to Chapter 9 SA Spectrum Analyzer Mode 2 Connect a USB antenn...

Page 372: ...F Settings Requires EMF Option 358 on page 315 6 If you need to edit or add new antenna factors or cable factors then repeat step 5 as required for Y Z and the Cable Factors See also How to Set Up EMF...

Page 373: ...1 User s Guide 373 USB Antennas Full Capability Requires EMF Option 358 and SA mode Option 233 Mixed Analyzers How to Set Up a USB Antenna Figure 14 4 Example Summing of Triaxial Values Figure 14 5 Ex...

Page 374: ...ode How to Set Up EMF Settings Requires EMF Option 358 GPS Option 307 and SA Mode Option 233 Mixed Analyzers on page 206 OTA Mode How to Set Up EMF Settings Requires EMF Option 358 on page 315 Figure...

Page 375: ...on page 180 Scale Settings For information on using scale settings refer to the Data Analysis chapter s section All about Scale Settings on page 620 not all settings apply to a USB antenna External Ga...

Page 376: ...e USB antenna is connected correctly or Unable to communicate with antenna Ensure it is connected Verify the antenna connection i e Disconnect and reconnect the USB cable Press USB Antennas Import Ant...

Page 377: ...F Measurements Option 358 provides a unique portable solution for indoor and outdoor maps in the field Option 352 adds indoor and outdoor mapping capability to FieldFox analyzers so that FieldFox can...

Page 378: ...PS coordinates FieldFox will automatically load the corresponding map to match the GPS coordinates With Indoor Mapping Using the FieldFox Import floor plans or site maps from picture files PNG JPG BMP...

Page 379: ...When the FieldFox Is On The LAN on page 390 Option 352 Indoor Maps Setup Procedure on page 392 Option 352 Outdoor Maps Setup Procedure on page 395 Setting up Data Logging on page 403 How to Record Pla...

Page 380: ...splay indoor and outdoor mapping Two Mapping Types Indoor Maps Outdoor Maps Requires Option 307 Color Coded Display Types Specify high and low power with color bars Store Geo location to external or c...

Page 381: ...ng Option 352 Requires Spectrum Analyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 Figure 15 2 Maps With Current Position Marker Displayed Open Street Maps Figure 15 3 Using...

Page 382: ...tible browser and download Node js to a PC e g Google Chrome Mozilla Firefox Safari or Microsoft Edge https nodejs org en download 2 Run the Node JS installation file by accepting the wizard s default...

Page 383: ...alyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 How to Install Node js and Running the FieldFox Mapping Software Figure 15 4 Downloading the Node js Installer to a PC Figur...

Page 384: ...pping software FFMapSupportInstall msi to a PC s Downloads folder Refer to www keysight com find fieldfoxsupport and then download the FieldFoxMapping zip Refer to Figure 15 6 2 Paste and Enter the ad...

Page 385: ...ea to map Enter a location in the search area and click on the map and use the Zoom In Zoom Out buttons to select the area to map Also your mouse scroll wheel can be used for zooming in and out Hint T...

Page 386: ...FieldFox Map Support Tool To select Zoom levels click the zoom boxes The more Zoom levels checked the more map images that have to be saved and it will take longer to download the images c Step 3 Inpu...

Page 387: ...7 c Find your maps zip file d Copy the zip file to your SD card or USB storage device e Remove the SD card USB storage device from your PC f Insert the SD card USB storage device into the FieldFox Fig...

Page 388: ...In the Select zip file to import window that opens if there is more than one zip file listed select the zip file you want to load by using the arrows or the rotary knob and then press Recall File Refe...

Page 389: ...on 352 Requires Spectrum Analyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 Importing a zip File to the FieldFox Figure 15 11 Example of Maps Folder Containing Imported Maps...

Page 390: ...n 352 Indoor Maps Setup Procedure Figure 15 12 Overview Setting Up Option 352 Indoor Mapping Using Other Modes Option 352 Outdoor Maps Setup Procedure Requires GPS Option 307 Figure 15 13 Overview Set...

Page 391: ...or the arrow keys to highlight Zoom and then enter a value between 4 and 17 4 If you do not see your Map on the FieldFox display Use the RPG or the arrow keys to highlight Latitude and then enter a va...

Page 392: ...ctures to the FieldFox using USB storage device SD card or connect to LAN with internet and download b Import floor plans or site maps to the FieldFox from pictures PNG JPG and BMP Press System 7 Mapp...

Page 393: ...g a Press Data Logging Indoor Record Indoor Data b Scroll to indoor floor plan png file c Press Recall File d Move the position cursor to current location Then use the arrows the rotary knob or numeri...

Page 394: ...er s Guide On the Box Mapping Option 352 Requires Spectrum Analyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 How to Set Up Mapping Settings Figure 15 15 Example of an Indoo...

Page 395: ...ce SD card or connect to LAN with internet and download Refer to How to Install Node js and Running the FieldFox Mapping Software on page 382 For FTP refer to http na support keysight com fieldfox hel...

Page 396: ...layed Zoom setting i e values must be between 4 and 17 Latitude If a latitude value is not found the FieldFox displays a gray grid Longitude If a longitude value is not found the FieldFox displays a g...

Page 397: ...Maps c Press Do Import Recall File and change latitude and longitude values to view site maps from pictures KML 4 If not done connect your equipment similar to Chapter 13 5G Rapid Prototype Phased Arr...

Page 398: ...rd or internal drive if the maps are saved to the FieldFox Connect the FieldFox to the LAN with internet access and use the FieldFox Mapping software to download a maps image zip file If necessary you...

Page 399: ...hen Preferences Discrete Colors Discrete Colors Discrete Colors and change value as desired Maximum 6 Figure 15 18 Display Example Color Coded Bar Scale Before Selecting x6 Colors Figure 15 19 Display...

Page 400: ...iver Option 307 How to Set Up Mapping Settings d Save results to KML file 9 View KML with map tools On the FieldFox see the data results overlaying open street map pictures Or use Google Maps or simil...

Page 401: ...er Option 307 How to Set Up Mapping Settings Figure 15 20 FieldFox Display with View Map ON and OFF Displayed Import and Play back KML Files into 3rd Party Software Example Google Earth with Animation...

Page 402: ...Settings Open the FieldFox KML file in Google Earth The time slider appears in upper left of the map Manual Mode Move the time slider cursor to see color coded icons pop up according to the timestamp...

Page 403: ...or File Type Default KML CVS or DREC Record Settings then choose Optional Then Meas Interval ON Then Interval Type choose Time or Distance Then if applicable Time Interval enter time interval in seco...

Page 404: ...ow and To change Recording Configuration settings on page 407 To change your file settings or measurement interval Learn more refer to To change Recording Configuration settings on page 407 Export KML...

Page 405: ...e top center area of the screen Rec 55 55 2018 12 31 03 26 11 PM where 55 55 is the current and total trace number currently trace is 55 of 55 total scans 2018 12 3103 26 11 PM is the date and time of...

Page 406: ...layed Back How to Record Press Measure Then Data Logging If Recording or Playback is not occurring when you think it should check the following Is the sweep in HOLD upper left annotation or check the...

Page 407: ...ation settings on page 407 Press Save Log File to save the current Table data i e default save device is Internal Then Record Settings To change your measurement interval settings Learn more refer to...

Page 408: ...playback choose from the following Pause Resume Temporarily halts playback Then choose from the following Pause Resume Press to continue playing Stop Immediately stops playback Then choose from the f...

Page 409: ...r Features Available Alignments For information on using alignments refer to the SA chapter s section Alignments on page 180 Scale Settings For information on using scale settings refer to the Data An...

Page 410: ...displayed annotation indicates Check LAN connection Check IP address during pinging Verify The LAN address for first 3 fields matches the Static IP address of FieldFox For example if the Ball Antenna...

Page 411: ...15 23 Figure 15 23 Example of This port because 5000 is in use Error If the Map Support Tool displays the error shown in Figure 15 23 it means the selected map area is outside the current viewable are...

Page 412: ...412 Keysight N9927 90001 User s Guide On the Box Mapping Option 352 Requires Spectrum Analyzer Mode Option 233 on N991xB GPS Option 307 and GPS Receiver Option 307 Troubleshooting...

Page 413: ...tp www keysight com find assist 1 To order the 89600 VSA Software refer to http www keysight com find assist 89600 VSA via the Remote Server feature is compatible with the frequency converter heads bu...

Page 414: ...dkeys are locked and will beep but perform no actions when pressed i e the FieldFox front panel hardkeys are not relevant when connected via LAN to the 89600 VSA software on your remote PC In Remote S...

Page 415: ...hapter In this Chapter See Also Connecting Using Remote Server on page 416 89600 VSA Software Overview Requires CPU2 and N991xA 3x A5x A6xA and SA Option 233 on page 418 Optional Settings LAN Settings...

Page 416: ...ed procedures refer to 89600 VSA Software Overview Requires CPU2 and N991xA 3x A5x A6xA and SA Option 233 on page 418 Figure 16 1 Initial Waiting for a Connection from a PC based and Compatible Licens...

Page 417: ...he frequency converter head settings while using the VSA first it is necessary to disconnect from the 89600A VSA 1 Disconnect from the 89600A VSA software using the VSA s disconnect icon 2 Change mode...

Page 418: ...DD TDD W CDMA GSM EDGE cdma2000 1xEV DO TD SCDMA Wireless connectivity 802 11ax 802 11n ac 802 11a b g j p 802 16 WiMAX fixed mobile 802 15 4 Wi SUN RFID Digital satellite video and other satellite si...

Page 419: ...use Microsoft Windows graphical user interface For a comprehensive FieldFox VSA mode help refer to http rfmw em keysight com wireless helpfiles 89600B WebHelp 89600 ht m For additional information on...

Page 420: ...420 Keysight N9927 90001 User s Guide Remote Server Mode Requires CPU2 and SA Hardware SA Option 233 89600 VSA Software Overview Requires CPU2 and N991xA 3x A5x A6xA and SA Option 233...

Page 421: ...ommon Settings for Waterfall and Spectrogram on page 424 Waterfall Display on page 425 About Sessions on page 427 FieldFox Setting Changes during Record and Playback on page 428 About State and User T...

Page 422: ...can be recorded from or played back into any measurement type such as Channel Power or Occupied BW or any display type such as Spectrogram and Waterfall See How to Record a Session on page 430 to lear...

Page 423: ...graticules Total trace records 340 Full Screen Displays the spectrogram with NO data trace Total trace records 340 Top Displays the data trace below the spectrogram Total trace records 130 Bottom Dis...

Page 424: ...r levels Adjust the Red and Blue limits to the power levels that you expect to measure The Blue limit must always be less than the Red limit For SA Mode Press Meas Setup 4 Then Spectrogram Settings or...

Page 425: ...e on the bottom of the screen using the scale and reference settings Learn how in Scale and Units on page 153 Figure 17 2 Waterfall display moderate angle with time markers 1 minute apart The followin...

Page 426: ...etail More detail provides fewer time records Press Meas Setup 4 Then Waterfall Settings Then Waterfall Angle Then choose from the following Moderate Compromise between detail and number of records St...

Page 427: ...ou close the session when finished recording or playing A session is also closed when the FieldFox is Preset or Mode Preset an Instrument State is recalled or when Mode is changed from SA Each session...

Page 428: ...f the following State settings are changed during recording the State counter is incremented About State and User Tags on page 429 and the settings are saved to the Session file along with the first t...

Page 429: ...Markers can be activated and moved to help analyze recorded data However marker position control is only available when playback is Paused Field Strength Corrections is saved with the session file and...

Page 430: ...f the playback display Learn more in GNSS GPS and GPS on page 650 Is the sweep in HOLD upper left annotation Is Recording or Playback Paused mid left annotation Is the Record or Playback Interval set...

Page 431: ...Pause Resume Press to continue playing Playback State Tag Allows you to continue playback from a state tag or scroll through the state tags Enter a value between 1 and the total number of state tags...

Page 432: ...Default is MAX which is to record indefinitely Enter a value between 1s and 1 Ms million seconds using the numeric keypad arrows or the rotary knob When set a timer appears during recording in the low...

Page 433: ...s that exceed the limit set Segment Count to 1 To record ALL traces after a limit is exceeded set Segment Count OFF When used with Record Time the timer counts down even when traces are not being reco...

Page 434: ...ask Limit Line table in All about Limit Lines on page 613 Save Mask Saves the current mask to a file Recall Mask Loads a mask file Record Source For SA mode the simplest way to use Record Playback is...

Page 435: ...n By default trace sweeps are played back as fast as the trace can be drawn on the screen The following setting allows you to slow playback In addition you can manually scroll through individual trace...

Page 436: ...Sort Arrange the listing of sessions by Name by Date or by Size Delete After a confirmation prompt removes the contents of the selected session from the list Copy Copies the selected session to a dif...

Page 437: ...end the recording This session can be played back into any Trace State For example Play the Max Hold recording into a Clear Write trace to see the data exactly as it was recorded Press Trace 6 then wi...

Page 438: ...438 Keysight N9927 90001 User s Guide Interference Analyzer SA Mode Option 236 Record Playback SA Option...

Page 439: ...he FieldFox source is routed internally to Port 1 and used to stimulate a Device Under Test DUT The energy that is reflected off the DUT is measured and displayed on the screen Option 320 requires Opt...

Page 440: ...measurements are CalReady Learn more in CalReady on page 123 In addition Normalization is available Learn how Normalize on page 442 However other calibration types are NOT offered In this Chapter How...

Page 441: ...ey function in CAT mode Frequency Range on page 49 Scale Settings on page 49 Averaging on page 50 Single or Continuous Measure on page 51 Resolution Number of Data Points on page 52 Sweep Time on page...

Page 442: ...wn as SWR 1 port reflection measurement that displays the ratio of the maximum reflected voltage over the minimum reflected voltage The higher the trace is on the screen the more energy being reflecte...

Page 443: ...race displays the current measurement with trace math applied The math operation symbol D M is displayed on the lower left corner of the screen Learn more about Trace Math in All about Markers on page...

Page 444: ...444 Keysight N9927 90001 User s Guide Reflection Mode SA Models Option 320 Reflection Mode Settings...

Page 445: ...electable frequency band A power sensor is NOT required In this Chapter See Also The following Built in Power Meter settings are identical to the standard Power Meter settings Frequency Span Step on p...

Page 446: ...1 User s Guide Built in Power Meter Mode Option 310 Limits on page 458 The following Built in Power Meter settings are identical to SA Mode settings Radio Standard on page 448 How to Access Individual...

Page 447: ...hich power is detected and displayed The maximum measurement span is 100 MHz How to enter center frequency step size and span The default frequency is 50 MHz Press Freq Dist Then Center Then type a va...

Page 448: ...elect a standard using the arrows or rotary knob and press Enter Attenuation The Attenuation setting controls the power level into the FieldFox To compare Built in Power Meter Mode measurements to SA...

Page 449: ...s are displayed on the FieldFox screen In this Chapter Supported Power Sensors on page 451 How to Connect the Power Sensor on page 451 Average Peak on page 453 Zeroing on page 453 Frequency on page 45...

Page 450: ...450 Keysight N9927 90001 User s Guide Power Meter USB Mode Option 302 See Also Step Detection Mode on page 458 Limits on page 458 FOPS Settings on page 463...

Page 451: ...t USB Power Sensor features External Triggering Time Gated Burst Power Measurement Power Sweep Operation and Frequency Sweep Operation External Zeroing is NOT allowed on the U2020 X series Power Senso...

Page 452: ...ysight N9927 90001 User s Guide Power Meter USB Mode Option 302 No light indicates the FieldFox is not communicating with the power sensor This is the case when in Hold mode or when NOT in Power Meter...

Page 453: ...switch Internal Zeroing does NOT require that the power source be turned OFF For highest measurement accuracy when measuring power levels below 30 dBm External Zeroing should be performed During Exter...

Page 454: ...lier key Learn about multiplier abbreviations in Multiplier Abbreviations on page 43 The current frequency is shown on the FieldFox screen Source Control This feature may require an option on some Fie...

Page 455: ...view measurements beyond these settings by performing Autoscale How to Scale the Power Meter Display Manually Press Scale Amptd Then choose from the following Scale Min Sets the low power level of the...

Page 456: ...On When switched to ON the FieldFox measures and stores the current power level Subsequent power measurements display a power level which is relative to the stored value When relative is ON the units...

Page 457: ...r of Power Meter readings to be averaged before a valid reading is displayed When the number is changed Averaging is automatically set to Man Single or Continuous Measure This setting determines wheth...

Page 458: ...ose from the following ON Enables step detection default setting OFF Disables step detection Limits In Power Meter Mode Minimum and Maximum limits set a visible range of acceptable readings between th...

Page 459: ...installed you can send a signal with the FieldFox internal source at one frequency and measure this signal with a Keysight U Series USB Power Sensor at another frequency Figure 21 1 Display for FOPS I...

Page 460: ...460 Keysight N9927 90001 User s Guide Frequency Offset Using Power Sensor FOPS Option 208 See Also Amplitude Markers on page 467 Trace Math on page 467 All about Scale Settings on page 620...

Page 461: ...nt The FieldFox source stimulates the DUT and the power sensor is used as the measurement receiver Since power sensors are inherently broadband devices not frequency selective it is your responsibilit...

Page 462: ...Guide Frequency Offset Using Power Sensor FOPS Option 208 Overview The dynamic range with FOPS may be significantly different when using various power sensors In general the lower frequency range sen...

Page 463: ...rmalization cal this selection guides you through the following steps to make a measurement at the reference plane and then store the data trace into memory Connect the power sensor to the measurement...

Page 464: ...ess Freq Dist Then Sweep Type Then choose from the following CW Used to make standard non offset power meter measurements at a single frequency Learn more in Power Meter USB Mode Option 302 on page 44...

Page 465: ...r the Receiver Start and Stop frequencies Then press Calculate Offset Press Rx Sweep to select the receiver sweep direction Fwd Used for systems for which the output frequency is Offs Src The output f...

Page 466: ...nsor settling Press BW 2 Then Tolerance Enter a value in dB between 0 and 10 using the numeric keypad the arrows or the rotary knob Tolerance of 0 will never be achieved so the Max Readings will alway...

Page 467: ...o make Amplitude Marker settings Press Marker Then More Then Ampl Markers Then choose from the following OFF Amplitude markers are NOT displayed ON Amplitude markers ARE displayed at their previous po...

Page 468: ...468 Keysight N9927 90001 User s Guide Frequency Offset Using Power Sensor FOPS Option 208 FOPS Settings 3 View Data Memory 4 Meas Src Power...

Page 469: ...ring data from a train of pulses at the RF input This data is queried from the USB Power Sensor and displayed on the FieldFox screen You can then analyze the data using several selectable settings In...

Page 470: ...ccurate Radar Pulse Measurements http literature cdn keysight com litweb pdf 5991 0434EN pdf Triggering on page 476 Marker Settings on page 479 Amplitude Markers on page 480 How to Search with Markers...

Page 471: ...d to the bottom USB port for Pulse Measurement Mode How to Connect the Power Sensor Connect your Power Sensor to one of the FieldFox USB ports A sequence of status lights are displayed on the base of...

Page 472: ...display Peak Peak power Meter display Pk to Avg Displays the difference between the above two measurements Meter display Trace Graph default The primary trace Tr 1 plots pulse data in amplitude versu...

Page 473: ...e sensor detects a pulse signal or T zero Follow each by entering a value using the numeric keypad the arrows or the rotary knob After using the keypad select a multiplier key Learn about multiplier a...

Page 474: ...ale acquisition and Reference Position Scale Manually enter a scale per division to view specific areas of the trace Ref Level Manually set the value of the reference line Enter a negative value by pr...

Page 475: ...response filter within the USB Power Sensor The filter setting affects the appearance of the trace results Video Bandwidth is allowed for all pulse measurements How to set Video Bandwidth Press BW 2...

Page 476: ...ad by the FieldFox and plotted across the X axis to form a trace More data points increases measurement resolution However more data points requires more time to acquire query and plot How to set Reso...

Page 477: ...nitiates data acquisition Press Sweep 3 Then Trigger Then Trigger Edge Then choose from the following Pos Acquisition is triggered by the rising positive edge of a valid signal Neg Acquisition is trig...

Page 478: ...avoid triggering on false pulses and to aid in stabilizing the power trace The qualification time defines the time the signal has to remain below the trigger threshold before a transition through the...

Page 479: ...e Trig Level 10 dBm Trig Type Int Pos Slope Delay Marker Settings Markers are not allowed with Meter style measurements Markers are displayed on Tr 1 and also on the zoom trace if the marker is within...

Page 480: ...evious positions Then Ampl Mkr 1 or 2 Enter a value in dBm for the marker using the numeric keypad the arrows or the rotary knob Press Delta Ampl Mkr Then choose from the following ON AmplMkr 2 value...

Page 481: ...rch uses different criteria than in Auto Analysis and will therefore result in different reported values For more information on peak power measurements refer to the documentation for your power senso...

Page 482: ...00 of the reference power level How to set Pulse Top Press Mkr Tools Then Pulse Top Then enter a percent value between 0 and 100 using the numeric keypad the arrows or the rotary knob When set to 10 1...

Page 483: ...y itself or with a pulse trace for comparison purposes The Tr 1 data trace is displayed in yellow The memory trace is displayed in blue How to display data and memory traces Press Trace 6 Then Trace M...

Page 484: ...484 Keysight N9927 90001 User s Guide Pulse Measurements Mode Option 330 Pulse Measurement Settings...

Page 485: ...surement displays the electrical length in both Magnitude and Phase Figure 23 1 Display for the 1 Port Cable Trimming measurement In this Chapter Overview on page 487 Measurement Selection on page 488...

Page 486: ...sight N9927 90001 User s Guide VVM Vector Voltmeter Mode Option 308 Procedures 1 Port Cable Trimming Measurements on page 493 2 Port Transmission Measurements on page 495 A B and B A Measurements on p...

Page 487: ...the electrical length of a DUT or cable to be trimmed Separate paths are used to measure the Incident signal A and Reflected signal B To measure the ratio of the Reflected Incident signals you were r...

Page 488: ...asurement in 2 Port Transmission Measurements on page 495 B A and A B 2 port ratioed receiver measurements using external sources Learn more in A B and B A Measurements on page 497 Frequency Selection...

Page 489: ...0 kHz 100 kHz More 30 Hz 300 Hz 3 kHz 30 kHz Output Power Set the power level out of the FieldFox to High Low or manually set power level to a value between High and Low Generally the high power setti...

Page 490: ...over several consecutive readings Average count determines the number of readings to average The higher the average count the greater the amount of noise reduction An average counter is shown in the l...

Page 491: ...ttery power is not critical You can also use Run Hold to toggle between Single and Continuous VVM Calibration CalReady is accurate for most zeroed VVM measurements at frequencies below about 6 GHz For...

Page 492: ...earn more in 2 Port Transmission Measurements on page 495 Press Zero OFF before performing a QuickCal or Mechanical Cal sets Zero to OFF How to select Zeroing Press Meas Setup 4 Then Zero Ref Open sel...

Page 493: ...ptional Measurement Verification procedure a Connect a short standard to PORT 1 where cables to be trimmed will be connected b Press Meas Setup 4 and press Zero c Remove the short standard and connect...

Page 494: ...r 11 Observe the displayed phase difference between the reference cable and the untrimmed cable 12 Carefully trim the cable until the phase shift reads zero The attached cable s electrical length is n...

Page 495: ...rement of an amplifier How to make a 2 Port Transmission Measurement 1 Press Mode then VVM then 2 Port Transmission 2 Press Freq Dist and enter the measurement frequency 3 Press Meas Setup 4 then More...

Page 496: ...ight N9927 90001 User s Guide VVM Vector Voltmeter Mode Option 308 2 Port Transmission Measurements To measure isolation of the amplifier reverse the connection to the amplifier PORT 1 to the amplifie...

Page 497: ...ocedure 1 Connect the external source s frequency reference output to the FieldFox Freq Ref IN on the top panel If you are unable to use a common frequency reference then increase the IFBW to ensure y...

Page 498: ...498 Keysight N9927 90001 User s Guide VVM Vector Voltmeter Mode Option 308 A B and B A Measurements...

Page 499: ...surements One unit is the source and the other unit is the Receiver In this Chapter Overview on page 500 Requirements and Limitations on page 501 Start Connection Wizard on page 502 Configure Measurem...

Page 500: ...nit responds as follower supplying signal at the DUT input The two units possibly separated by hundreds of meters step together through the selected frequency range making measurements such as long ca...

Page 501: ...ion 209 Channel Measurements Tune and Listen Interference Analysis Radio Standards and Sweep Triggering The following SA features are disabled during partnership synchronization Video BW SwpAcquisitio...

Page 502: ...art when ready Press Start At any step press Exit to end the wizard STEP 2 Connect Trigger and LAN cables LAN Connect a LAN cable to each unit The units can either both be connected to the internet on...

Page 503: ...address of the Source unit If 10 10 10 1 appears then NO FieldFox units were found The LAN setting Obtain IP Address using MUST be set to DCHP Learn more in LAN Settings on page 659 Also be sure that...

Page 504: ...en the DUT output and the Receiver unit Figure 24 1 Input and Output jumper cables are measured on the Receiver unit If your DUT input AND output is connected directly to the FieldFox or you choose to...

Page 505: ...ion 209 Start Connection Wizard Press Re measure or Continue Press Apply Corrections ON to remove the jumper cables from subsequent DUT measurements Press Done to exit the Connection Wizard On the Rec...

Page 506: ...are all configured as Clear Write Press Meas 1 then choose one or more of the following Figure 24 2 Input power Output power and gain measurement traces To change the trace numbers of these three mea...

Page 507: ...any of these settings change Normalize is deactivated How to Normalize the B trace Press Meas Setup 4 Then Remote Source Then Normalize ON Source Tracking Offset and Offset Reversal Source offset trac...

Page 508: ...dB then turn the Preamp ON Learn how in Preamplifier Control Opt 235 on page 155 Decrease the Res BW Learn how in Resolution Bandwidth Res BW on page 165 Set Frequency Reference to GPS on both units T...

Page 509: ...s enables you to make the following measurements And can be enabled disabled simultaneously with Tune and Listen Overview of Measurement Types If you are familiar with the AM FM measurements and terms...

Page 510: ...ise component in the total unwanted signal It helps the user to troubleshoot the root causes of modulation distortion S Signal Power D N Noise THD D N S D N RF spectrum of the modulated signal This is...

Page 511: ...to which the baseband signal modulates the carrier signal The quantity being measured is the peak frequency deviation that is the maximum frequency excursion from the carrier frequency Carrier power...

Page 512: ...ist Center to set the carrier frequency Set Freq Span so that all sidebands above 60 dB are displayed in the left window Optionally adjust the Res BW to better identify side bands Metrics are displaye...

Page 513: ...Keysight N9927 90001 User s Guide 513 AM FM Metrics SA Only and Option 355 Using AM FM Metrics Figure 25 1 AM Metrics Example 1...

Page 514: ...514 Keysight N9927 90001 User s Guide AM FM Metrics SA Only and Option 355 Using AM FM Metrics Figure 25 2 AM Metrics Example 2...

Page 515: ...Keysight N9927 90001 User s Guide 515 AM FM Metrics SA Only and Option 355 Using AM FM Metrics Figure 25 3 FM Metrics Wide band Example...

Page 516: ...ot displayed Refer to Figure 25 4 on page 516 The FFT waveform is used to calculate SINAD and THD distortion metrics The fundamental signal harmonics and noise from 0 Hz to 24 kHz are applied to the f...

Page 517: ...Keysight N9927 90001 User s Guide 517 AM FM Metrics SA Only and Option 355 SINAD and THD Calculations Figure 25 5 SINAD and THD Results Example 1...

Page 518: ...518 Keysight N9927 90001 User s Guide AM FM Metrics SA Only and Option 355 SINAD and THD Calculations Figure 25 6 SINAD and THD Results Example 2...

Page 519: ...on discusses possible AM FM Metrics error messages and how to correct them Test Tone Not Found A Test Tone Not Found message is displayed under the following circumstances FieldFox frequency span is t...

Page 520: ...cs Error Messages Test Tone Not Found Example The following response had the following settings Source CF 140 MHz FM Deviation 18 kHz Modulation Rate 1 kHz Reasons for error Frequency span of 1 0 MHz...

Page 521: ...equency span of 50 kHz Ideally the frequency span should show the modulation envelope down to 60 dB below the RF power level Response corrected because Narrowing the frequency span enables the modulat...

Page 522: ...522 Keysight N9927 90001 User s Guide AM FM Metrics SA Only and Option 355 Interpreting AM FM Metrics Error Messages...

Page 523: ...nel power vs frequency for up to 20 channels simultaneously Six Display Types Bar graph vertical display orientation Bar graph horizontal display orientation Channel Power Strip Chart Strip Chart and...

Page 524: ...r to How to Define a Channel and Use Channel Scanner 1 Define some channels refer to How to Define a Channel and Use Channel Scanner a Select a Scan Mode choose Range Specify total channels channel sp...

Page 525: ...l Time Time Interval Distance Interval and or Auto Save default is On 5 Then select the User Folder and save to KML or CSV file Save Recall Rec Playback Then User Folder Def System Def Sets the defaul...

Page 526: ...requency span is set automatically to 1 5 x Integration BW Power is measured over the Integration BW Using Channel Scanner refer to Step 1A Scan Mode Range Channel Defined on page 527 or Step 1B Scan...

Page 527: ...n 312 How to Set Up Channel Scanner Figure 26 2 Channel Definition Step 1A Scan Mode Range Channel Defined 1 Define some channels Press Measure Scan Mode Range 2 Press Edit Range and modify table item...

Page 528: ...canner Figure 26 3 Range Table Settings 3 Press Done Step 1B Scan Mode Custom List Channel Defined 1 Define some channels Press Measure Scan Mode Custom List 2 Press Edit Custom List and modify table...

Page 529: ...Save Recall List Save List to save a custom list See also How to use the FieldFox labeler on page 674 Step 2 Select Display Type Select one of the following display orientations Select Display Type ch...

Page 530: ...530 Keysight N9927 90001 User s Guide Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 5 Bar Chart Vertical Display Type Figure 26 6 Bar Chart Horizontal Display Type...

Page 531: ...Keysight N9927 90001 User s Guide 531 Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 7 Channel Power Display Type Figure 26 8 Strip Chart Display Type...

Page 532: ...532 Keysight N9927 90001 User s Guide Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 9 Strip Chart Overlay Display Type Figure 26 10 Scan Listen Display Type...

Page 533: ...lors to low and high power values 1 Press Scale Amptd Red Limit to set high power values and to set the color 2 Press Blue Limit to set low power values and to set the color 3 And then press System Di...

Page 534: ...esults including timestamps and or distance stamps Timestamps are included in log files with or without GPS GPS must be enabled for log results to include distance stamps Data results can be logged Da...

Page 535: ...tings Auto Save On Off 6 When done press Stop or Esc The files save dialog is displayed Edit the file name where the file results will be stored 7 Press Done 8 Press Back Playing a Recorded Log and Vi...

Page 536: ...ormat can be imported into spreadsheet applications 1 Press Save Recall Rec Playback File Type CSV or KLM Back 2 To begin recording Press Record Measurements are stored automatically according to the...

Page 537: ...arth Time Slider appears in upper left of the map Manual Mode Move the time slider cursor to see color coded icons pop up according to the timestamp Loop mode has a Fast Slow Replay Option Click on ea...

Page 538: ...o the FieldFox The Field Strength feature allows you to enter the frequency response of the receiving antenna the Antenna Factor and associated cabling and then have amplitude corrections automaticall...

Page 539: ...Keysight N9927 90001 User s Guide 539 Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 15 Editing Antenna Units See also Figure 26 14 on page 538...

Page 540: ...er marker to measure total power over a range of frequencies Learn how in Band Interval Power Marker on page 191 How to select and edit corrections for Field Strength measurements The Antenna and Cabl...

Page 541: ...on ON or OFF for this Antenna Cable Edit Antenna Cable Edit an Antenna Cable Correction table See Using the Antenna Cable Editor below for more information New Create a new Antenna Cable See Using the...

Page 542: ...542 Keysight N9927 90001 User s Guide Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 17 Apply Corrections ON...

Page 543: ...Keysight N9927 90001 User s Guide 543 Channel Scanner Option 312 How to Set Up Channel Scanner Figure 26 18 Apply Corrections OFF...

Page 544: ...use the arrows to select a field To edit header information press Edit then modify the selected field using the FieldFox labeler Description Enter a description for the antenna or cable correction tab...

Page 545: ...Row Remove the selected Freq Value pair from the table Clear All then Yes Remove all Freq Value pairs from the table and resets header information to default settings When the table edits are complet...

Page 546: ...r Mode cable or antenna csv or ANT files can NOT be edited in Data Link software How to create a Cable file from an S21 NA mode or an Insertion Loss CAT mode measurement 1 Measure the S21 or Insertion...

Page 547: ...When you initially change the FieldFox mode to Noise Figure the FieldFox displays the following message for ten seconds Ensure your Noise Source is connected to the VVS DC Output It VVS will be driven...

Page 548: ...Only Figure 28 1 Example of Jitter Uncertainty 21 points with Uncertainty Bars Learn more in How to use Auto Integration on page 588 Figure 28 2 Example of Jitter Uncertainty 21 points with Uncertain...

Page 549: ...574 Points on page 574 Alignments on page 575 Calculating Noise Figure Measurement Uncertainty on page 576 Using ENR Tables on page 581 About ENR enr Preamplifier amp and DUT dut Files on page 582 Usi...

Page 550: ...or technique to accurately verify and characterize the noise figure of devices Option 356 has these features Five Measurement Types Noise Figure Noise Factor Gain Noise Temperature Y Factor Four Measu...

Page 551: ...oint caret shows last point measured 1 Variable Voltage Source VVS Status line appears when the VVS status line is turned on in the system menu Refer to Variable Voltage Source Opt 309 on page 656 2 U...

Page 552: ...are moved from the left of the traces to the bottom of the traces 1 No Cal No calibration applied 2 Rcvr Cal Only receiver calibration applied 3 User Cal Receiver Cal User Cal applied but User Cal is...

Page 553: ...elected the value is the current spot ENR Uncertainty Status annotation Only displayed when the Uncertainty bars have been enabled 1 Uncertainty Bars are disabled 2 Unc Uncertainty bars are enabled an...

Page 554: ...ing ENR Tables on page 581 Using Markers Noise Figure on page 584 Example Typical Noise Figure Measurement Procedure This section briefly reviews the steps in setting up a noise figure measurement If...

Page 555: ...ainty Uncert Contributions to Enable Disable Uncertainty Contributions Jitter Uncert OFF ON ENR Uncert OFF ON Mismatch Uncert OFF ON User Cal Uncert OFF ON applies the current User Cal uncertainty to...

Page 556: ...at a fixed frequency The single spot value is used either for measurements at a single frequency or for measurements across a range of frequencies that is narrow enough such that the ENR value does n...

Page 557: ...populated for quick check Enter your noise source s values for more accurate measurements New ENR Table opens a new ENR table for entering and saving additional noise source values Save ENR Table Ope...

Page 558: ...peratures you can set the Tcold value in Kelvin K manually User When set to Default the Tcold value is set to the 296 5 K Default Default Back to return to previous menu DUT or Opens a menu of softkey...

Page 559: ...is measured at a given point to attempt to reach the Jitter Goal value i e the measurement time per point is automatically adjusted to the minimum time required but will never exceed the displayed Max...

Page 560: ...e when DUT Mode Table Then choose Import DUT Data Opens a menu of softkeys where you can select a DUT csv or snp data file to import into your table Then choose Recall File Sort by File Name Sort by D...

Page 561: ...T Mode to either Spot default or Table Then choose Preamp Mode Set to Spot default or to Table For Preamp MODE Spot choose Preamp Spot Values Only active when DUT Mode Spot Refer to similar DUT Spot V...

Page 562: ...four predefined measurement setups Amplifier Downconverter Upconverter Multi Stage Converter Refer to Using Measure Setup to Choose DUT Type on page 562 Each of the four measurements has frequency con...

Page 563: ...DUT parameters without an external preamplifier LNA Type Amplifier DUT displays does not display LO if not frequency converting Displays preamp LNA if User Cal is available See next image this figure...

Page 564: ...ms internal frequency downconversion converts RF down to IF Sideband LSB Lower Sideband available for downconverter and upconverter USB Upper Sideband available for downconverter and upconverter DSB D...

Page 565: ...l frequency upconversion technically converts IF up to RF but for this case RF always DUT In and IF always DUT Out and so converts RF up to IF Sideband LSB Lower Sideband available for downconverter a...

Page 566: ...nverter Screen Used for setting up DUT parameters Type Multi Stage Converter Multi Stage Converter Performs multi stage frequency conversion converts RF down up to IF DUT Measurement Setup Type Multi...

Page 567: ...ise figure measurements RF DUT In Start Stop Center Span Freq Context Inactive for Amplifier RF IF LO Inactive for Amplifier IF DUT Out Inactive for Amplifier Start Stop Center Span This section conta...

Page 568: ...es Refer to Frequency Range and Frequency Context on page 571 Figure 29 5 DUT Type Amplifier and Multi Stage Converter RF DUT In Frequency Context Used for setting up Start Stop Center and Span freque...

Page 569: ...ange and Frequency Context on page 571 Figure 29 6 DUT Type Downconverter Upconverter and Multi Stage Converter IF DUT Out Frequency Context Inactive for Type Amplifier Used for setting up Start Stop...

Page 570: ...values Refer to Frequency Range and Frequency Context on page 571 Figure 29 7 DUT Type Downconverter Upconverter and Multi Stage Converter Freq Context IF or RF Inactive for Type Amplifier Used for se...

Page 571: ...up DUT RF DUT In and IF DUT Out Then choose from the following Start and Stop frequencies beginning and end of the sweep Center and Span frequencies the center frequency and span of frequencies half o...

Page 572: ...enabled or disabled for loss and for temperature Loss compensation can be used to compensate for double sidebands DSB Loss compensation can be used in the case of DSB measurements to compensate for t...

Page 573: ...DUT Loss Compensation Used for setting up loss compensation for a DUT Type Amplifier Downconverter Upconverter and Multi Stage Converter Loss compensation can be set before and after the DUT Enable o...

Page 574: ...or making measurements Each Run Hold press causes NF to toggle between continuous sweep and Hold OFF Causes NF to Hold Each Run Hold or Single press causes NF to make ONE sweep then Hold The Hold anno...

Page 575: ...s BW better noise measurement and faster measurement time How to set Res BW Press BW 2 Then Res BW Then choose from the following 300 KHz 1 MHz 3 MHz 5 MHz Press the desired resolution bandwidth The c...

Page 576: ...e due to the internal reference switch Other possible causes of uncertainty that are not included in the uncertainty analysis are temperature drift of the following DUT Noise source or Preamplifier Re...

Page 577: ...honic behavior etcetera Any instability in the DUT will cause unaccounted noise measurement uncertainties Entering Uncertainty Information In addition to information gathered during the measurement th...

Page 578: ...represents the largest possible reflection coefficient for the population of devices to which the DUT belongs This is true for does not exceed specifications Fixed Use this if the value is a measured...

Page 579: ...which means that 95 of the time the actual ENR is within the range of ENR ENR Uncertainty Preamplifier Reflection Coefficients User Calibration Only For this section see also Overview of Softkey Menu...

Page 580: ...Uncertainty Calculation and Display For this section see also Overview of Softkey Menus on page 555 Uncertainty Uncert Contributions on page 561 When enabled uncertainty bars are displayed on the data...

Page 581: ...measurement If this is done it is important to select the ENR table for the calibration noise source prior to the calibration And then to select the ENR table for the measurement noise source prior to...

Page 582: ...storing the file ENR files are stored as enr files Existing ENR files that are loaded into the FieldFox can be overwritten Your edited file will NOT be overwritten when firmware is updated To DELETE a...

Page 583: ...can be overwritten Your edited file will NOT be overwritten when firmware is updated To DELETE a amp file use the Manage Files feature Learn more in Manage Files on page 680 DUT dut Files DUT dut file...

Page 584: ...arker Table Annotation Marker annotation Marker readout in top right corner of graticule Displays uncertainty values for select measurements IMPORTANT Noise Figure has asymmetric uncertainty see red b...

Page 585: ...contains the following Receiver Calibration Receiver Cal User Calibration User Cal User Calibration User Cal Optimizing Measurement Accuracy Receiver Calibration Receiver Cal The receiver calibration...

Page 586: ...ifier is used in the noise figure measurement If there is no preamplifier the user calibration is not necessary Although it will be interpolated if other frequencies are used when a user calibration i...

Page 587: ...rement In some cases it might be better to use a different noise source in the user calibration than will be used in the measurement If this is done it is important to set the ENR table for the calibr...

Page 588: ...with the selected amount of measurement jitter in the shortest possible time The auto integration feature calculates the time required to satisfy the jitter goal from the relative power levels as the...

Page 589: ...ce to consider the contribution of the jitter uncertainty to the total measurement uncertainty when selecting a jitter goal If the measurement uncertainty from other contributors is known to be 0 5 dB...

Page 590: ...pter 31 File Management and then to Saving and Recalling Files on page 672 Choose Save ENR Table Enter the filename of your noise source Enter a value using the numeric keypad the arrows or the rotary...

Page 591: ...Keysight N9927 90001 User s Guide 591 Noise Figure Mode Option 356 CPU2 Only How to use Auto Integration Figure 29 13 Example of Jitter Uncertainty 401 points with Uncertainty Bars...

Page 592: ...592 Keysight N9927 90001 User s Guide Noise Figure Mode Option 356 CPU2 Only How to use Auto Integration Figure 29 14 Example of Jitter Uncertainty 401 points without the Uncertainty Bars...

Page 593: ...tion Figure 29 15 shows an example of a noise figure visual Jitter Warning elements that can be enabled disabled i e blue circles around points where the jitter goal was exceeded Press to toggle Jitte...

Page 594: ...le Limit Lines For information on using Limit Lines refer to All about Limit Lines on page 613 Display Lines For information on using Limit Lines refer to the SA chapter s section Display Line on page...

Page 595: ...Troubleshooting Some measurements can result in invalid results NaNs In these cases the FieldFox s Noise Figure Option 356 displays the following Red X on the NaN point Marker readout displays SCPI wi...

Page 596: ...596 Keysight N9927 90001 User s Guide Noise Figure Mode Option 356 CPU2 Only Troubleshooting...

Page 597: ...Trace CAT NA NF Modes on page 602 Marker Trace IQA and SA Mode on page 602 Marker Format on page 603 Searching with Markers on page 604 What Is a Peak on page 609 Marker Functions on page 611 SA Mark...

Page 598: ...I Q Analyzer NA NF RTSA SA and Pulse Measurements Modes How to create Markers Press Marker Then Markers 1 6 to select a marker to activate Then Normal to activate that marker A marker is created on th...

Page 599: ...n that is relative to a reference marker A Delta marker is created with a delta symbol to distinguish it from the reference marker All six markers can be a Delta marker pair Peak search functions can...

Page 600: ...ace Create a Delta marker From the Mkr Tools menu press More SA mode only then Marker Properties then Delta Ref Fixed OFF The reference marker floats at the data trace Y axis position ON The reference...

Page 601: ...s position Coupled markers are allowed only in NA mode and are relevant only in multi trace configurations You can have markers that are coupled and others that are uncoupled Peak functions move the m...

Page 602: ...marker on only the active trace How to move a marker between traces With at least one marker present press Marker then More Then select the marker to move using Marker 1 2 3 4 5 6 Then toggle Marker...

Page 603: ...he last data or to the ZERO position Marker Format The Marker Format setting allows you to choose the format of the marker readout that appears in the upper right corner of the screen and in the marke...

Page 604: ...umber OFF causes a new marker search only when the search feature is re executed Peak Moves the active marker to the HIGHEST amplitude data point of the trace Peak Excursion and Peak Threshold value i...

Page 605: ...NA Mode ONLY Specify the level in dB from the peak or valley where bandwidth is measured Negative numbers search for a Peak bandpass such as a filter S21 response Either of the following TWO methods...

Page 606: ...equency Mathematical midpoint between marker 2 and marker 3 Q Center Frequency Bandwidth Loss Marker 1 amplitude Left Frequency of marker 2 or 3 to left of marker 1 Right Frequency of marker 2 or 3 to...

Page 607: ...ow to set Peak Criteria on page 609 Delta Ref Fixed Enables or disables the delta reference fixed marker Peak Left IQA Spectrum Only Moves the active marker to the next data point to the left that mee...

Page 608: ...evious marker sections For example if your markers are set to Delta change to Normal and verify the marker positions are correct Refer to Figure 28 6 on page 609 Then press Mkr Tools Then More For DTF...

Page 609: ...r Only Cont Peak Search These two peak criteria settings are set individually for each trace and for each mode CAT SA or NA These settings do NOT survive a FieldFox or Mode Preset How to set Peak Crit...

Page 610: ...es To be considered a peak data values must fall off from the peak on both sides by the excursion value Default 0 5 dB for CAT and NA Modes 6 dB for SA Mode Cont Peak Search I Q Analyzer Only Enables...

Page 611: ...tep not required for I Q Analyzer mode Then choose one of the following Mkr Center Not available in DTF I Q Analyzer waveform or SA mode with zero span The center frequency of the measurement becomes...

Page 612: ...ons are available in I Q Analyzer Mode ONLY exceptions are noted Noise Marker Available in SA mode Band Interval Power Marker Available in SA mode Coupled Markers Band Span Interval Band Span Continuo...

Page 613: ...ecalled independently from the Limit softkeys Learn more in How to Save and Recall Limits on page 616 How to Create Fixed Limit Lines There are two ways to build a Fixed limit line 1 1 Build limits Fr...

Page 614: ...ency X axis and acquisition Y axis Use relative limits to test devices or signals that are identical except for the center frequency or amplitude With relative limit lines in place you change the cent...

Page 615: ...limit line red built from the trace yellow shifted down 5 dB How to Build Limit Lines from a Trace Select the trace from which limits will be built Press Limit 8 Then Edit Then Build From Trace A limi...

Page 616: ...line DOWN usually used with LOWER limits Margin Shifts the limit line up or down like an offset but only virtually The limit line does NOT appear to move Enter a Margin value using the rotary knob th...

Page 617: ...ck A display line is similar to a Limit Line except that no PASS FAIL testing occurs A display line is easier to create than a Limit Line Learn more in All about Limit Lines on page 613 Figure 28 8 Di...

Page 618: ...nds to confirm the data trace has been saved to memory There is no display annotation that indicates that the memory trace has been stored Press Data to view only the data trace Press Memory to view o...

Page 619: ...lization purposes such as when comparing traces before and after a change is made or when measuring trace noise In the following table the Data Mem values intuitively show the differences between trac...

Page 620: ...lly enter a scale per division to view specific areas of the trace Ref Level Manually set the value of the reference line Enter a negative value by pressing Run Hold either before or after typing a va...

Page 621: ...of previous sweeps that have been averaged together to form the current trace When the counter reaches the specified count then a running average of the last N sweeps is displayed Average Count 1 mea...

Page 622: ...Data Analysis Features All about Scale Settings 622 Keysight N9927 90001 User s Guide...

Page 623: ...Edit Keywords on page 629 Full Screen Mode on page 629 Utilities on page 630 How to view and change Utilities Settings on page 630 Utilities Softkey Choices on page 630 How to view and change the Fre...

Page 624: ...number prefixes 5607 on page 661 Date and Time Format and Time Zone Settings on page 658 Service Diagnostics on page 663 See Also Install the Lithium Ion Battery on page 28 FieldFox High Temperature P...

Page 625: ...ings always survive Preset and Mode Preset External Reference state see Frequency Reference Source on page 654 SA Scale and Units see Scale and Units on page 153 SA Correction states see Field Strengt...

Page 626: ...ks and individual features that use the FieldFox speaker such as SA Mode Tune and Listen The volume control setting remains through a FieldFox Preset To cause your volume control setting to remain thr...

Page 627: ...m viewing in a wide range of lighting conditions Display settings are persistent after a FieldFox shut down Save the display settings as Preferences Learn how in Save and Reset Preferences on page 639...

Page 628: ...with Preferences How to set Trace Width Press System 7 Then Display Then Display Colors Then More Then Trace Width Then choose one of the following Normal Standard width Wide Wide Enhanced width Titl...

Page 629: ...r on page 674 Then Title ON OFF to make the title appear and disappear from the screen Edit Keywords During a file save operation keywords can be quickly appended to other text to create unique filena...

Page 630: ...ption 360 opens a menu of softkeys that enables the PAA measurements Refer to Chapter 13 5G Rapid Prototype Phased Array Antenna Option 360 USB Antennas opens a menu of softkeys that enables the triax...

Page 631: ...uency extender head includes The frequency extender heads are compatible with to SA IQA OTA PAA RTSA and 89600 VSA via the Remote Server feature with VSA license The USB ports are used to supply power...

Page 632: ...step 8 5 Optional Press High Sensitivity ON OFF to ON OFF is selected for maximum span up to 6 GHz Narrow is selected for lowest noise floor for a given RF input 100 MHz Default is OFF maximum span 6...

Page 633: ...knob to change the value Refer to Figure 29 4 on page 636 c New to opens a corrections table of the currently selected file csv but enables you to create a new converter corrections file Displays Over...

Page 634: ...ter folder e Recall Converter opens a menu where you can recall a frequency converter corrections file csv Storage Device opens a menu where you can change the storage location of your frequency conve...

Page 635: ...0001 User s Guide 635 System Settings Utilities Figure 29 2 FieldFox Frequency Converter High Sensitivity ON Narrow Lowest Noise Floor Displayed Figure 29 3 FieldFox Frequency Extender Select Frequenc...

Page 636: ...s Guide System Settings Utilities Figure 29 4 FieldFox Frequency Converter Corrections Table Figure 29 5 FieldFox Frequency Converter Freq Extend On And Corrections eCorr Enabled SA mode shown other...

Page 637: ...can be restored to their factory defaults Learn how in Save and Reset Preferences on page 639 There are two ways to make FieldFox preference settings From softkey selections throughout the FieldFox me...

Page 638: ...g a value press Done Edit When finished changing ALL preferences press Done All changes are immediately saved as Preferences To exit the editing session without saving changes press Esc at any time Le...

Page 639: ...in this User s Guide How to save current settings as Preferences Using softkeys configure the settings as you would like them to remain Press System 7 Then Preferences Then Save Current Settings There...

Page 640: ...ttery Saver When the battery saver is OFF the RF source power is left ON at the end of the sweep which consumes more battery power This feature is used in CAT NA VVM modes and SA mode when the interna...

Page 641: ...is reduced by approximately 45 minutes Startup Mode The Startup Mode setting determines the mode that becomes active visible when User Preset is set to OFF Factory Preset and the FieldFox is powered...

Page 642: ...default Title User Title default Then Done Edit for each change in setting Audio Choose the Audio values Mute Volume See also Audio Volume Control on page 626 How to select Audio values Press System 7...

Page 643: ...es Then use arrow softkeys or the knob to select Date and Time Then Edit for each of the following Date and Time Edit as needed Refer to Date and Time Format and Time Zone Settings on page 658 Time Fo...

Page 644: ...dd ddd mm mmmmm Then Done Edit for each change in setting File folders When enabled FieldFox uses the last selected Device and Folder location as the default device location after instrument power cyc...

Page 645: ...ys Refer to How to use the FieldFox labeler on page 674 File Saving Naming Options Prefix Displays the current choice for Prefix Choices are User Last File default or Off Refer to Prefixes and Suffixe...

Page 646: ...646 Keysight N9927 90001 User s Guide System Settings CAT Distance Units Cable default and the most accurate Auto Then Done Edit after each change in setting...

Page 647: ...ded in saved SNP Data on page 679 How to select CAT NA defaults Press System 7 Then Preferences Then Preferences Then use arrow softkeys or the knob to select CAT NA Then Edit for each of the followin...

Page 648: ...nt Control default See also Alignments on page 180 How to select SA defaults Press System 7 Then Preferences Then Preferences Then use arrow softkeys or the knob to select SA Then Edit for each of the...

Page 649: ...olors choose up to 6 discrete colors Minimum default 2 red and blue High Power Red Blue choose red or blue to choose the color to indicate the highest power levels default Red System Configuration Opt...

Page 650: ...stamp each data trace with your physical position in latitude longitude elevation format This can be useful when making measurements on cell towers or other antennas at remote locations With Option 3...

Page 651: ...he FieldFox main window GPS OFF Disable GPS default setting External Enable GPS using an external customer supplied USB dongle device A check is made to detect a USB GPS device at the USB connectors I...

Page 652: ...enabled the following is displayed at the top of the FieldFox screen The following icons located in RED circle above indicate the GPS lock status GPS ON and locked on satellites GPS ON but NOT locked...

Page 653: ...guration Then GNSS GPS or GPS depending on options GNSS Settings Then choose from the following Enable and disable the synchronization of the FieldFox internal clock to the GPS UTC time standard ON Th...

Page 654: ...he file you are saving png GNSS and GPS Freq Ref Source Settings For convenience the GNSS Settings menu includes the Freq Ref Source softkey Press System System Configuration GNSS GPS Freq Ref Source...

Page 655: ...t GPS reading is used as a hold over correction value for the internal reference The hold over correction value is no longer used but instead the factory set correction value is used when any of the f...

Page 656: ...ble with Keysight part number N9910X 713 The following status line is provided near the top of the FieldFox screen Figure 29 9 IMPORTANT Noise Figure mode uses DC variable voltage source VVS Option 30...

Page 657: ...status line that appears near the top of the screen The status line is always ON while making Voltage Source settings Security Level For security reasons you can prevent frequency information from ap...

Page 658: ...N cable that is also connected to the Internet Then press Update Time using Internet When successful a message is displayed indicating the amount of time correction that occurred Optional Set the foll...

Page 659: ...t in the upper right corner of the FieldFox screen will update accordingly LAN Settings Configure the LAN settings to be used to communicate with the Data Link Software and connect to the FieldFox for...

Page 660: ...y The Address remains until you change it Static IP Address Enter the IP Address including periods in the format nnn nnn nnn nnn Static Subnet Mask Enter the Subnet Mask including periods in the forma...

Page 661: ...om the following Auto The FieldFox will power ON when a charged battery or the DC Adapter is inserted Manual The FieldFox will power ON only when the power button is pressed FieldFox Package Installer...

Page 662: ...data to a USB or SD card See also How to restore files on page 662 From the initial Installer menu Press Utility Then Backup Data A message is displayed Choose backup file location Then choose either...

Page 663: ...ard or USB A progress bar and a message is displayed Restoring user data Service Diagnostics The Service diagnostics menu is generally used to display service related information To access these menu...

Page 664: ...is at the top of the table Press Clear Events to erase this information Battery Learn more in Chapter 32 Working with the Lithium Ion Battery on page 687 Internal Temperatures Learn about the importa...

Page 665: ...Self Test Wizard prompts Then the following occurs After pressing Continue you are given the option to Run the Self Test i e without calibration standards or Rebooting is not required on the N995xA N9...

Page 666: ...he Self Test using OSL standards With either choice the Self Test results are displayed on the FieldFox as they are performed Refer to Figure 29 10 on page 667 After the Self Test completes a pass fai...

Page 667: ...re similar Table 29 3 Self Test FieldFox Instrument Type and Available Self Tests Model Type Description of Tests Available Optional Calibration Check Y N Combo All tests Yes VNA NA receiver check NA...

Page 668: ...668 Keysight N9927 90001 User s Guide System Settings Service Diagnostics...

Page 669: ...s Overview of mini USB to PC setup for sending SCPI commands and queries Connect a mini USB FieldFox device side to standard USB host PC On the FieldFox Power on the instrument Click System 7 System D...

Page 670: ...A 3xA units with serial number prefixes 5607 Mini USB Connection to PC with IO Libraries In the Keysight Interactive IO window Type in your SCPIs on the Command line and click Send Command Read Respon...

Page 671: ...Fox screen In addition files can be saved to the internal memory a USB Flash drive or a standard SD card D In this Chapter Save Files on page 672 Recall Files on page 676 Move Copy Files on page 676 S...

Page 672: ...error will result when trying to recall a state file that was saved on a different model family If you are having difficulty saving to a USB flash drive it may be a timing issue The turn around time...

Page 673: ...as MATLAB files mat Refer to Chapter 11 IQ Analyzer IQA Option 351 CPU2 Only on page 257 and to Chapter 31 File Management on page 671 If you have the FieldFox s Remote Server mode 89600 VSA software...

Page 674: ...play on the FieldFox screen Learn about Titles in How to Manage files on page 680 Move the cursor see section below How to move the cursor then press Select to add the cursor character to the end of t...

Page 675: ...bove the current filename is File_0 The cursor is on the custom DTF_VSWR keyword The file will be saved to USB flash drive File Type is Trace State Instrument State How to move the cursor Use the rota...

Page 676: ...d on differences in the CalRdy calibration data may result in differences between the displayed traces Image Files The FieldFox can open and display png jpg and jpeg images How to Recall a File Press...

Page 677: ...your files Then Do Copy copies files to selected location and FieldFox displays a confirmation message of a successful file copy Cancel to cancel copy file and return to the previous menu Set File Typ...

Page 678: ...to a sta file In SA Mode all traces are saved This file can be opened ONLY by a FieldFox When recalled the FieldFox sweep is set to Hold Picture PNG Saves a 640 x 453 pixel image of the FieldFox scree...

Page 679: ...22 Imag S22 Only data traces are saved not memory traces Corrections When parameters are corrected data is returned even when not displayed Data is returned with the correction type that is applied fo...

Page 680: ...Fox htm Learn more about System Preferences in Preferences on page 637 Manage Files Files that are stored in the FieldFox internal memory standard SD card and USB Flash drive can be copied to another...

Page 681: ...Replace With Enter the string that is to be replaced by the characters entered with the String to Replace softkey Prefix Enter a prefix one time that the current filename or filenames are to be renam...

Page 682: ...t folder Select a name for the new folder from one of the displayed keywords You can change these keywords using the following Edit Keywords function Refer to Edit Keywords in Edit Keywords on page 68...

Page 683: ...acter from the end of the selected keyword Press Shift to change from upper case to lower case and vice versa Press Alt Keywords to toggle through different keyword choices How to move the cursor Use...

Page 684: ...wing Edit Prefix to edit the prefix using the labeler For more refer to How to edit the Prefix and Suffix Auto Append on page 684 Select to add the cursor character to the end of the Prefix Back Space...

Page 685: ...n the Prefix is complete Press Done to save the Prefix and close the labeler This Prefix will exist on the FieldFox until it is changed Press Cancel to close the labeler without saving changes How to...

Page 686: ...softkey will appear ONLY when a compatible printer is connected Then press Save Recall 9 Then Print and choose from the following Printer Page nSetup Confirm that the printer is connected and configur...

Page 687: ...ge Learn more in the following section Viewing the Battery Charge Status on page 687 Charging the Battery on page 689 Reconditioning Battery on page 692 Battery Care on page 692 Maximizing Battery Lif...

Page 688: ...charging current 3 Battery Temperature internal temperature of the battery as measured by a sensor embedded in the battery 4 Present Run Time to Empty minutes of power remaining based on amount of cu...

Page 689: ...t The FieldFox circuitry ALWAYS prevents the battery from discharging to a level that is damaging However if the battery is completely discharged the FieldFox may not turn ON If this occurs the batter...

Page 690: ...tor on the FieldFox side panel then plug the adapter into an AC outlet FieldFox ON Charging is indicated by a battery icon in the upper right of the front panel screen FieldFox OFF Charging is indicat...

Page 691: ...rged sequentially on a first come first served basis though a discharge can be performed in the left bay while the right bay is charging For more information refer to the Instruction Manual included w...

Page 692: ...Refer to Lithium Ion Battery Disposal on page 693 Operation with a degraded battery could result in damage to the FieldFox Maximizing Battery Life If AC power is not continuously available Ex in a fi...

Page 693: ...thium Ion Battery Disposal When you notice a large decrease in charge capacity after proper recharging it s probably time to replace the battery Lithium Ion batteries need to be disposed of properly C...

Page 694: ...694 Keysight N9927 90001 User s Guide Working with the Lithium Ion Battery Lithium Ion Battery Disposal...

Page 695: ...nts for Electrical Equipment for Measurement Control and Laboratory Use and the FieldFox is supplied in a safe condition The FieldFox is also designed for use in Installation Category II and pollution...

Page 696: ...ntained Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed Ensure that the connections with information technology equipme...

Page 697: ...Guide 697 Safety Considerations For the FieldFox The measuring terminals on this instrument are designed to be used with external signals described in Measurement Category I but NOT with external sign...

Page 698: ...onnecting device It removes main power to the AC DC adapter The FieldFox front panel switch is only for the DC power within the instrument and not for the AC DC adapter Alternately an AC switch or cir...

Page 699: ...external charger available from Keysight or another SMBus charger of level II or higher Never use a non SMBus charger because the battery issues commands over the SMBus to the charger to control the c...

Page 700: ...ot expose the battery to water or salt water or allow the battery to get wet Do not disassemble or modify the battery The battery contains safety and protection devices which if damaged may cause the...

Page 701: ...refer to Appendix E Russian Battery Safety Translation The external battery is not rated for use in a wet location Do not use the external battery in a wet location Lithium ion batteries Must not be...

Page 702: ...alent type of battery recommended Discard used batteries according to manufacturer s instructions If you are charging the batteries internally even while the FieldFox is powered off the FieldFox may b...

Page 703: ...must drop below approximately 4 10 V to reset the protection and permit charging Secondary Overcharge Voltage This is a one time permanent protection that is triggered when the voltage across any cel...

Page 704: ...tection and permit charging Overtemperature Discharging The system microcontroller prevents the battery from being discharged if the cell temperature exceeds 67C Once the overtemperature discharging p...

Page 705: ...This prevents the battery from discharging if the voltage across any cell drops below approximately 2 6 V Once the overdischarge voltage protection is tripped the voltage across each cell must be cha...

Page 706: ...ng transistors will open up and limit current flow to the battery terminals as a function of very high temperatures This protection is resettable once the overstress condition is removed The maximum o...

Page 707: ...this instrument are susceptible to damage by static discharge Static charges are generated in numerous ways such as simple contact separation of materials and normal motions of persons working with th...

Page 708: ...cates this is an Industrial Scientific and Medical Group 1 Class B product CISPR 11 Clause 4 The Standby symbol is used to mark a position of the instrument power line switch This symbol indicates sep...

Page 709: ...y regulations Dispose of properly Do not throw batteries away collect as small chemical waste Recycle the old battery properly Consult local or country regulations related to disposal Keep battery awa...

Page 710: ...gistration Indicates the time period which no hazardous or toxic substance elements are expected to leak or deteriorate during normal use Ten years is the expected useful life of the product This symb...

Page 711: ...d that it meets UL s safety requirements When accompanied by a C and US it indicates compliance to both Canadian and US requirements NOM Mark Normality of Mexico indicates that the product was tested...

Page 712: ...facilities of other International Standards Organization members Manufacturer s Declaration This product has been designed and tested in accordance with accepted industry standards and has been suppl...

Page 713: ...CISPR 11 ICES NMB 001 This ISM device complies with the Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB 001 du Canada Safety Complies with the European Low Voltage Directive IEC EN 610...

Page 714: ...714 Keysight N9927 90001 User s Guide Safety Considerations Certification and Compliance Statements...

Page 715: ...critical for accurate and repeatable measurements The following table contains for tips on connector care Prior to making connections to your analyzer carefully review the information about inspectin...

Page 716: ...the DC power cord removed in a well venti lated area and with the power to the FieldFox turned OFF Allow all residual alcohol moisture to evapo rate and the fumes to dissipate prior to energizing the...

Page 717: ...ld Analyzers N99xxA User s Guide B Specifications Data Sheet To ensure the highest accuracy and consistency the FieldFox Specifications are now stored ONLY at http literature cdn keysight com litweb p...

Page 718: ...718 Keysight N9927 90001 User s Guide Specifications Data Sheet...

Page 719: ...ated at 12 month intervals ensures that the analyzer maintains performance within the operating specifications If you need the analyzer to maintain more consistent operation you may want to have the i...

Page 720: ...librated and is operating within the published specifications ANSI Z540 Calibration Includes the test data from the calibration and the certificate of calibration stating the instrument has been calib...

Page 721: ...721 Keysight Handheld Analyzers N99xxA User s Guide D Korean Battery Safety Translation...

Page 722: ...722 Keysight N9927 90001 User s Guide Korean Battery Safety Translation...

Page 723: ...Keysight N9927 90001 User s Guide 723 Korean Battery Safety Translation...

Page 724: ...724 Keysight N9927 90001 User s Guide Korean Battery Safety Translation...

Page 725: ...Keysight N9927 90001 User s Guide 725 Korean Battery Safety Translation...

Page 726: ...726 Keysight N9927 90001 User s Guide Korean Battery Safety Translation...

Page 727: ...Keysight N9927 90001 User s Guide 727 Korean Battery Safety Translation...

Page 728: ...728 Keysight N9927 90001 User s Guide Korean Battery Safety Translation...

Page 729: ...Keysight N9927 90001 User s Guide 729 Korean Battery Safety Translation...

Page 730: ...730 Keysight N9927 90001 User s Guide Korean Battery Safety Translation...

Page 731: ...731 Keysight Handheld Analyzers N99xxA User s Guide E Russian Battery Safety Translation...

Page 732: ...732 Keysight N9927 90001 User s Guide Russian Battery Safety Translation...

Page 733: ...Keysight N9927 90001 User s Guide 733 Russian Battery Safety Translation N9927 90001...

Page 734: ...734 Keysight N9927 90001 User s Guide Russian Battery Safety Translation N9927 90001...

Page 735: ...Keysight N9927 90001 User s Guide 735 Russian Battery Safety Translation N9927 90001...

Page 736: ...736 Keysight N9927 90001 User s Guide Russian Battery Safety Translation N9927 90001...

Page 737: ...Keysight N9927 90001 User s Guide 737 Russian Battery Safety Translation N9927 90001...

Page 738: ...738 Keysight N9927 90001 User s Guide Russian Battery Safety Translation N9927 90001...

Page 739: ...Keysight N9927 90001 User s Guide 739 Russian Battery Safety Translation N9927 90001...

Page 740: ...740 Keysight N9927 90001 User s Guide Russian Battery Safety Translation N9927 90001...

Page 741: ...Keysight N9927 90001 User s Guide 741 Russian Battery Safety Translation N9927 90001...

Page 742: ...742 Keysight N9927 90001 User s Guide Russian Battery Safety Translation...

Page 743: ...743 Keysight Handheld Analyzers N99xxA User s Guide F Keysight Software End User Licensing Agreement EULA...

Page 744: ...744 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA...

Page 745: ...Keysight N9927 90001 User s Guide 745 Keysight Software End User Licensing Agreement EULA...

Page 746: ...746 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA...

Page 747: ...230 274 Audio Beep 193 Average Type 179 242 Averaging VVM 490 averaging 50 98 621 VVM 490 avoid overpowering 34 B Band Power Marker IQA 277 Band Power Marker SA mode 191 277 278 280 612 Band Span Mar...

Page 748: ...61 294 start and stop distance 60 DTF Measurement 62 74 DTF settings 62 DTF Start and Stop Distance 63 75 Dynamic Range 108 dynamic range 108 E ECal 130 Edit a Cable File 66 DTF 66 78 edit keywords 68...

Page 749: ...ency range 49 148 227 571 output power 53 103 490 power meter display units 456 res BW 165 234 575 resolution 52 100 scale 49 620 sweep time 52 sweep type 51 100 trace averaging 50 621 video BW 166 us...

Page 750: ...port cable loss CAT mode 55 2 port insertion loss CAT mode 57 bridge cancellation VVM mode 495 compressed 156 231 return loss 55 selection 47 442 selection reflection 442 measurements about IQA 260 O...

Page 751: ...rinting 686 protection high temperature 30 protective functions of the battery 688 Pulse Measurements 469 Q Quick Settings 93 quick settings 48 QuickCal 125 Qwerty keyboard 645 R Radio Standard 150 re...

Page 752: ...ile names 683 sweep acquisition parameter 166 169 time 52 time NA mode 101 type 51 100 type SA mode 166 Sweep Acquisition 169 sweep acquisition 169 Sweep Time NA Mode 101 Sweep Type SA Mode 166 system...

Page 753: ...me control 626 VSA 413 vsa 413 VVM Calibration 491 VVM mode 485 bridge cancellation measurements 495 settings 488 VVM mode settings 488 W Waterfall Display 422 425 Waveguide Calibrations 137 where to...

Page 754: ...Keysight N9927 90001 User s Guide Index...

Page 755: ......

Page 756: ...bject to change without notice Keysight Technologies 2014 2020 Edition 4 April 2020 www keysight com Sie haben Fragen oder w nschen eine Beratung Angebotsanfrage unter 07121 51 50 50 oder ber info dat...

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