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Chapter 2

55

Test Descriptions

Noise Figure Range and Accuracy

Noise Figure Range and Accuracy

Test Description

A precision step attenuator, calibrated at 50 MHz with an accuracy of 0.010dB, is
used as an external standard to measure the NFA’s Noise Figure Range and
Accuracy over a 22dB range. The results are then used to determine the Instrument
Uncertainty for the given ENR values over their respective measurement ranges.

A 50 MHz CW signal is passed through a precision step attenuator. The signal path
is referenced at 0dB attenuation. The attenuator is then stepped in 1dB steps from 1
to 11 taking the analyzers P

hot

measurement at each step. Only one step attenuator is

used in the measurement to reduce the overall measurement uncertainty of the
standard. It is therefore necessary to re-reference the measurement and repeat the
test covering the range from 12-22dB. All levels tested below 1dB are interpolated
from the measured points, as the minimum step attenuator setting is 1dB.

For test purposes the Noise Figure Range and Accuracy is only tested at the lower
frequency band with the most accurate specifications.

Test Specification

Related Adjustment

None

Table 2-10

N8973A, N8974A and N8975A specification

Noise Source ENR

4 - 7dB

12 - 17dB

20 - 22dB

Noise Figure Measurement Range

0 to 20dB

0 to 30dB

0 to 35dB

Instrument Uncertainty

±

0.05dB

±

0.05dB

±

0.10dB

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Содержание NFA Series

Страница 1: ...rification and Calibration Guide The specifications in this manual are applicable to models having Serial Prefix GB4446 and greater Manufacturing Part Number N8973 90012 January 2011 Supersedes Novemb...

Страница 2: ...f with the symbols and their meaning before operating this instrument WARNING Warning denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in...

Страница 3: ...removal of covers and shields are for use by service trained personnel only DO NOT service or adjust alone Under certain conditions dangerous voltages may exist even with the equipment switched off To...

Страница 4: ...the equipment could be impaired This product must be used in a normal condition in which all means for protection are intact only CAUTION This product is designed for use in INSTALLATION CATEGORY II a...

Страница 5: ...using the free arm for balance KEEP your shoulders level switch hands regularly Electromagnetic Compatibility This product conforms with the protection requirements of European Council Directive 89 33...

Страница 6: ...specific frequency and the Analyzer will continue to perform to specification at all other frequency sample points The Noise Figure Analyzer may be unable to calibrate a chosen frequency sample point...

Страница 7: ...stment Procedures 11 2 Test Descriptions 10 MHz Out Frequency Reference Accuracy 14 Test Description 14 Test Specification 14 Related Adjustment 14 Required Test Equipment 15 Test Setup 15 Test Proced...

Страница 8: ...ecification 52 Related Adjustment 52 Required Test Equipment 52 Test Setup 53 Test Procedure 53 Noise Figure Range and Accuracy 55 Test Description 55 Test Specification 55 Related Adjustment 55 Requi...

Страница 9: ...ecification 81 Related Adjustment 81 Required Test Equipment 82 Test Setup 82 Test Procedure 83 3 Technical Specifications Frequency 90 Noise Figure and Gain 92 RF Input 95 Measurement 97 Display 99 D...

Страница 10: ...Jitter Test Record 115 B Model N8974A Test Records 10MHz Out Frequency Reference Accuracy Test Record 118 Input VSWR Test Record 119 Frequency Accuracy Test Record 120 Noise Source Supply Accuracy Tes...

Страница 11: ...ecord 138 Instrument Noise Figure Test Record 139 Measurement Jitter Test Record 141 D Caring for Connectors Introduction 144 Connector Part Numbers 144 Handling and Storage 144 Visual Inspection 145...

Страница 12: ...Connectors 155 Using Connector Gages 156 Inspecting and Cleaning the Gage 156 Zeroing the Gage 156 Making Connections 159 Align Connectors Carefully 159 To Make a Preliminary Connection 160 Final Conn...

Страница 13: ...1 1 Preparing for Calibration and Performance Verification Test This chapter covers preparation and equipment required for doing the calibration and performance verification tests...

Страница 14: ...ions NOTE You do not need to access the interior of the instrument to perform the tests If for any reason the unit measures out of specification then adjustment procedures are supplied where applicabl...

Страница 15: ...lyzer requires periodic verification of operational performance Under normal use and environmental conditions the instrument should be calibrated at 12 month intervals The tables on the following page...

Страница 16: ...the tests and make a copy of the relevant test records for the model you are testing provided in Appendices A through C CAUTION Ensure that the recommended torque settings detailed in Table 1 3 are a...

Страница 17: ...evice complies with Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB du Canada This is also a symbol of an Industrial Scientific and Medical Group 1 Class A product CISPR 11 Clause 4 The...

Страница 18: ...llowing the tests Each test result is identified as a TR test record entry in the performance tests and in Appendix pertaining to the model you are testing We recommend that you make a copy of the per...

Страница 19: ...ing NOTE Substitution is not permitted when using the automated performance verification and adjustment software Table 1 1 Recommended Test Equipment Equipment description Critical specification for e...

Страница 20: ...V range 3458A Attenuator Switch Driver Compatible with 8494G H Programmable step attenuators 11713A 1 dB Step Attenuator Attenuation Range 0 to 11 dB Frequency Range 50 MHz Connectors 3 5 mm F Calibra...

Страница 21: ...1500E Microwave Cable 2 2 4 mm M to 2 4 mm M 81 cm 32 in Frequency band 3 GHz to 26 5 GHz 85133C Adapter 50 Type N F to 7 mm included in 85032B Type N Calibration Kit 85054 60001 Adapter 50 Type N F t...

Страница 22: ...Precision 3 5mm 8 lb in 90 N cm SMA 5 lb in 56 N cm Use the SMA wrench to connect male SMA connectors to female precision 3 5min connectors Connections of male precision 3 5mm connectors to female SMA...

Страница 23: ...ocedure is available the instrument must be returned to Agilent Technologies for repair Please contact your local Agilent Technologies Customer Sales and Service Office for replacement parts or repair...

Страница 24: ...12 Chapter1 Preparing for Calibration and Performance Verification Test Performance Verification and Adjustment Procedures...

Страница 25: ...13 2 Test Descriptions This chapter descibes each test required for calibration and performance verification...

Страница 26: ...d to the frequency counter s Channel A input A cesium beam frequency standard or some other 10 MHz house standard provides the frequency reference for the frequency counter The timebase to be set is m...

Страница 27: ...ent as shown in Figure 2 1 Figure 2 1 10 MHz Out Frequency Reference Accuracy Test Setup Table 2 1 10 MHz Out Frequency Reference Accuracy Test Equipment Equipment description Critical specification f...

Страница 28: ...is connected remove it from the 10 MHz Ref Input Step 2 Ensure that the NFA s preset condition is set to its factory settings Press the System key the More menu item then set the Power On Preset menu...

Страница 29: ...em is now 1 more than the initial value Step 7 When the frequency counter reading has stabilized record reading in the Worksheet as Counter Reading 2 with 0 1 Hz resolution Step 8 Decrease the NFA s f...

Страница 30: ...e 2 and record the result as the settability in the Worksheet Step 15 Ensure that the calculated measurement figure given in the Worksheet is within the published specifications Step 16 Once verified...

Страница 31: ...____________Hz Counter Reading 2 Reading ________________Hz Counter Reading 3 Reading ________________Hz Positive Frequency Change Counter Reading 2 Counter Reading 1 ________________Hz Negative Frequ...

Страница 32: ...adjusted and saved the 10 MHz Reference Accuracy Test is re run to verify the unit meets it s published specification Required Test Equipment The frequency standard provides the reference for the Uni...

Страница 33: ...justment Test Setup Test Procedure NOTE Before performing any adjustments ensure that the 10 MHz Frequency Reference Accuracy test has been done and that the measured frequency is outside the publishe...

Страница 34: ...approximate 12 Hz adjustment Therefore if the original settings were for example Coarse 127 and Fine 136 then the new settings after adjustment are Coarse 126 Fine 131 NOTE A negative error value dec...

Страница 35: ...ed value is within the published specification Repeat the adjustment procedure until the correct value is obtained Step 5 Press Save from the Time Base sub menu to ensure that the values are stored in...

Страница 36: ...om the Network Analyzer however the conversion below can be used if measuring return loss VSWR or voltage standing wave ratio can be calculated from the reflection coefficient using the following equa...

Страница 37: ...emblies to cover its operating range It is therefore not possible to complete a single VSWR swept measurement at a single fixed frequency point over its entire operating range PART 5 CAL VNA 3 0 GHz 6...

Страница 38: ...2 1 1 20000 MHz to 26500 MHz N A N A 2 4 1 Table 2 6 Test Equipment required for Input VSWR test Equipment description Critical specification for equipment substitution Recommended model Vector Netwo...

Страница 39: ...n F 11901C UWave Cable 2 4 mm M to 2 4 mm M 81 cm 32 in Frequency band 3 GHz to 26 5 GHz 85133C a Option 004 is only required for the ET models b Option 004 is only required for the ET models c Part 1...

Страница 40: ...Input VSWR test requires the following stages 1 Calibrating the Vector Network Analyzer 1 from 10 MHz to 3 GHz 2 Measuring VSWR from 10 MHz to 500 MHz 3 Measuring VSWR from 500 MHz to 1500 MHz 4 Measu...

Страница 41: ...3 0 G n Step 5 Set the measurement format to SWR press the Format key and SWR Step 6 Set the number of measurement points to 801 points press the Sweep Setup key and NUMBER of POINTS 8 0 1 x1 Step 7...

Страница 42: ...y then Calibrate Menu and Reflection 1 port Step 11 Connect the Open to the test port or if fitted the adapter and perform the open calibration press Opens and then select the relevant menu key Step 1...

Страница 43: ...inish Step 5 Set sweep to single press the Sweep key and Sweep Mode Single Step 6 Set the frequency mode to fixed press the Frequency Points key and Freq Mode Fixed Step 7 Set the fixed frequency to 2...

Страница 44: ...ncy of the NFA to 1000 MHz press the Frequency Points key and then Fixed Freq 1 0 GHz Step 4 Restart the measurement sweep on the DUT press the Restart key Step 5 Using the marker peak function on the...

Страница 45: ...f the NFA to 1750 MHz press the Frequency Points key and then Fixed Freq 1 7 5 0 MHz Step 4 Restart the measurement sweep on the DUT press the Restart key Step 5 Using the marker peak function on the...

Страница 46: ...frequency range 3 GHz to 6 7 GHz press Start 3 G n then Stop 6 7 G n For the N8975A frequency range 3 GHz to 26 5 GHz press Start 3 G n then Stop 2 6 5 G n Step 5 Set the measurement format to SWR pr...

Страница 47: ...d then select the relevant menu key Step 12 Connect the Short to the test port or if fitted the adapter and perform the open calibration press Shorts and then select the relevant menu key Step 13 Conn...

Страница 48: ...MHz to 6700 MHz is within the published specification Measuring Input VSWR from 6700 MHz to 20000 MHz Step 1 Connect the test equipment as shown in Figure 2 6 on page 35 Step 2 Set the Network Analyz...

Страница 49: ...et the fixed frequency of the NFA to 23 GHz press the Frequency Points key and then Fixed Freq 2 3 GHz Step 4 Restart the measurement sweep on the DUT press the Restart key Step 5 Using the marker pea...

Страница 50: ...e center frequency point For test purposes the narrow bandwidths are verified at the narrowest bandwidth of 100 kHz This is due to the fact that the NFA uses digital sample processing DSP It is theref...

Страница 51: ...Frequency Range 10 MHz to 26 5 GHz Frequency Accuracy CW 0 02 Power Level Range 55dBm 83620 30 40 50B Option 001 and 008 Adapter 1 N8973A N Type M to 3 5mm F N8974 5A 3 5mm Precision F to 3 5mm F 125...

Страница 52: ...y Accuracy Test Procedure Test Record detailed in the relevant Appendix for the model number being tested Step 1 Connect the equipment as shown in Figure 2 7 on page 40 Step 2 Set the Synthesized Swee...

Страница 53: ...em key More More and Service Enter the service password 2 0 1 0 press Enter Service and then press IF Test and Fixed IF Gain On Set the IF Gain Value to 16 and press IF Gain Value 1 6 Enter 10 For mod...

Страница 54: ...9 Step 11 Obtain the Phot tabulated measurements press the Format key and Table Use the tab keys below the display to scroll through the results Alternatively output the trace data to disk using the...

Страница 55: ...Chapter 2 43 Test Descriptions Frequency Accuracy Figure 2 8 Typical 4 MHz bandwidth filter shape Figure 2 9 Typical 100 KHz bandwidth filter shape...

Страница 56: ...isted in the data into the Test Record Ensure the measured values are within its published specification Step 14 Reset the IF Gain press the System key then More More and Service Enter the service pas...

Страница 57: ...mmed Phot reading dB Equation 1 No Frequency MHz Summed Phot reading dB Equation 1 No Frequency MHz Summed Phot reading dB Equation 1 1 22 43 2 23 44 3 24 45 4 25 46 5 26 47 6 27 48 7 28 49 8 29 50 9...

Страница 58: ...93 114 73 94 115 74 95 116 75 96 117 76 97 118 77 98 119 78 99 120 79 100 121 80 101 122 81 102 123 82 103 124 83 104 125 84 105 126 Table 2 8 Frequency Accuracy Test Worksheet No Frequency MHz Summe...

Страница 59: ...156 177 136 157 178 137 158 179 138 159 180 139 160 181 140 161 182 141 162 183 142 163 184 143 164 185 144 165 186 145 166 187 146 167 188 147 168 189 Table 2 8 Frequency Accuracy Test Worksheet No...

Страница 60: ...Hz Equation Power Summed Phot reading 201 2 Power ____________WattHz 190 194 198 191 195 199 192 196 200 193 197 201 Table 2 8 Frequency Accuracy Test Worksheet No Frequency MHz Summed Phot reading dB...

Страница 61: ...ct files of Type Text Files prn txt csv Figure 2 10 Example Excel File Column A contains the measured frequency Column B contains the corresponding Linear Phot value Disregard Column C null terminator...

Страница 62: ...ue meets its published specification Performing the frequency accuracy calculations manually Step 1 Using the displayed Phot results sum the values and enter the summed values on the Test Worksheet Ta...

Страница 63: ...12 Equation Power Summed Phot Reading 201 2 Step 3 Use the summed value column as shown in Figure 2 12 as a look up reference and find the cell which closest matches the Power Reading The correspondi...

Страница 64: ...states Test Specification Noise Off 0 0V 1 0V Noise On 28V 0 1V Related Adjustment None Required Test Equipment The following equipment is required for the Noise Source Supply Accuracy test Table 2 9...

Страница 65: ...DCV in the FUNCTION RANGE menu Step 3 Ensure that the preset is set to factory settings press the System key then More Power On Preset and Preset Factory Step 4 On the NFA press the Preset key and wai...

Страница 66: ...s Enter Password then enter the service password 2010 Press Enter then Service and Noise Source On Step 9 Enter the digital multimeter reading in the Test Record as the Noise Source Supply On measurem...

Страница 67: ...ps from 1 to 11 taking the analyzers Phot measurement at each step Only one step attenuator is used in the measurement to reduce the overall measurement uncertainty of the standard It is therefore nec...

Страница 68: ...0 40 50B Option 001 and 008 Attenuator Switch Driver Compatible with 8494G H Programmable step attenuators 11713A 1 dB Step Attenuator Attenuation Range 0 to 11dB Frequency Range 50 MHz Connectors 3 5...

Страница 69: ...re Range and Accuracy Test Record detailed in the relevant Appendix for the model number being tested Step 1 Connect the equipment as shown in Figure 2 14 Step 2 Set the Synthesized Sweeper as follows...

Страница 70: ...for the routine to finish 3 Set the measured result to Phot press the Result key and Phot 4 Set sweep to single press the Sweep key and Sweep Mode Single 5 Set the frequency mode to fixed press the F...

Страница 71: ...press the Restart key to restart the NFA sweep Step 10 Record the measured Phot value in the Worksheet as the 65dB Ref 2 Level Step 11 Step the attenuator in 1dB steps from 1 11dB recording the measu...

Страница 72: ...ze dB Input Level dBm Measured Phot dB Range dB Actual Attenuation dB Equation 1 Measured Attenuation dB Equation 2 0 54 Ref 1 Ref 1 Ref 1 Ref 1 Ref 1 0 125 0 5 1 55 1 2 56 2 3 57 3 4 58 4 5 59 5 6 60...

Страница 73: ...ed PhotdB Ref 1 Measured PhotdB from 55 to 65 Range dB 12 to 22 Measured PhotdB Ref 2 Measured PhotdB from 66 to 76 11dB to re reference NOTE The ENR values given in the calculations are taken to be 5...

Страница 74: ...ttenuationdB 10 1 Measured NF range 15 dB ENR 10LOG 10 Measured AttenuationdB 10 1 Instrumentation Uncertainty Range dB 0 125 to 11 Actual NF Measured NF Range dB 12 to 15 Actual NF Measured NF Instru...

Страница 75: ...y given measurement from 20dB to 40dB within the available 0 70dB IF attenuator range Therefore the actual Instrumentation Uncertainty is calculated as the maximum peak to peak error over any 40dB ran...

Страница 76: ...s Gain Measurement Uncertainty Figure 2 15 Typical Instrumentation Uncertainty for the range 30 to 70dB Test Specification Gain Measurement Uncertainty Range 20 to 40dB Instrumentation Uncertainty 0 1...

Страница 77: ...mended model Synthesized Sweeper Frequency Range 50 MHz Frequency Accuracy CW 0 02 Power Level Range 46 dBm 83620 30 40 50B Option 001 and 008 Adapter 1 N8973A N Type M to 3 5mm F N8974 5A 3 5mm Preci...

Страница 78: ...et is set to factory settings press the System key then More Power On Preset Power On Preset and Preset Factory Step 4 Press the Preset key on the NFA and wait until the routine is finished Step 5 Set...

Страница 79: ...the Worksheet No 1 Example Index 16 1 004545 10 LOG10 1 004545 0 019694dB Step 10 Using the error data calculated in the Worksheet No 1 enter the peak to peak error in dB over the 30 available measure...

Страница 80: ...Uncertainty Table 2 18 Gain Measurement Uncertainty Worksheet 1 Index Delta Ratio Error dB Index Delta Ratio Error dB 1 36 2 37 3 38 4 39 5 40 6 41 7 42 8 43 9 44 10 45 11 46 12 47 13 48 14 49 15 50 1...

Страница 81: ...scriptions Gain Measurement Uncertainty 24 59 25 60 26 61 27 62 28 63 29 64 30 65 31 66 32 67 33 68 34 69 35 70 71 Table 2 18 Gain Measurement Uncertainty Worksheet 1 Index Delta Ratio Error dB Index...

Страница 82: ...dex Range Measured Range dB Peak Peak Instrumentation Uncertainty dB 1 41 0 40 2 42 1 41 3 43 2 42 4 44 3 43 5 45 4 44 6 46 5 45 7 47 6 46 8 48 7 47 9 49 8 48 10 50 9 49 11 51 10 50 12 52 11 51 13 53...

Страница 83: ...nt Uncertainty 23 63 22 62 24 64 23 63 25 65 24 64 26 66 25 65 27 67 26 66 28 68 27 67 29 69 28 68 30 70 29 69 31 71 30 70 Table 2 19 Gain Measurement Uncertainty Worksheet 2 Index Range Measured Rang...

Страница 84: ...ation NOTE Specifications covering the frequency range of 10 MHz to 3000 MHz are referenced to 0 MHz To calculate the specification for any given frequency point within this range simply multiply the...

Страница 85: ...Chapter 2 73 Test Descriptions Instrument Noise Figure Figure 2 17 Typical plots with limit lines for the N8973A...

Страница 86: ...74 Chapter2 Test Descriptions Instrument Noise Figure Figure 2 18 Typical plots with limit lines for the N8974A Figure 2 19 Typical plots with limit lines for the N8975A...

Страница 87: ...el number Table 2 20 Required equipment for Instrument Noise Figure Test Equipment description Critical specification for equipment substitution Recommended model Noise source Frequency Range 10 MHz t...

Страница 88: ...se Figure Test Setup 346A 346A OR Adapter Adapter 346C N8973A Type N Opt 001 N8974A 3 5mm Std N8975A 3 5mm Std OR Input BNC Cable Source Supply 28V Noise OR OR NOISE SOURCE NOISE FIGURE ANALYZER Load...

Страница 89: ...Step 4 Load the noise source ENR calibration file from diskette A or from the NFA s internal memory C Alternatively create an ENR file from the data supplied on the noise source label refer to the No...

Страница 90: ...nly run the Yig Tuned Filter alignment by pressing System Alignment and Align YTF then wait for the alignment routine to complete Step 7 Restart the NFA sweep by pressing the Restart key Step 8 Once t...

Страница 91: ...Chapter 2 79 Test Descriptions Instrument Noise Figure Figure 2 21 Specification limit line setup for N8973A Figure 2 22 Specification limit line setup for N8974A...

Страница 92: ...ence to the historical data alternatively the screen could be saved to disk and archived printed etc Step 12 Activate the markers function on the analyzer press the Marker key and the Marker 1 State a...

Страница 93: ...Factor over 100 samples The standard deviation is then calculated using the non biased or n 1 method STDEV uses the following formula Equation 2 2 The linear value is then converted to Log10 to give...

Страница 94: ...mmended model Noise source Frequency Range 1 GHz Typical ENR 4 7dB Connection 3 5 mm M or N Type M 346A Standard or option 001 Adapter 3 5 mm Precision F to 3 5 mm F 83059B BNC cable Length 122 cm 48...

Страница 95: ...le from the data supplied on the noise source label refer to the Noise Figure Analyzers NFA Series User s Guide for more details Do not calibrate the source The NFA should display Uncorrected in the a...

Страница 96: ...re n number of samples sum x measured values Using an example result of approximately 2 5 the standard deviationLin can be calculated as follows n x 2 x 2 n n 1 100 sum value 1 to 1002 sum value 1 to...

Страница 97: ...2 22 Example worksheet Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin 1 10 11 20 81 90 91 100 2 51173 2 53236 2 51882 2 54814 2 52119 2 52459 2 52375 2 51989 2 53...

Страница 98: ...t Worksheet Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin Y Factor Reading Lin...

Страница 99: ...Specifications apply over 0 C to 55 C unless otherwise stated The Noise Figure Analyzer meets specification after 2 hours storage within the operating temperature range 1 hour after the analyzer is tu...

Страница 100: ...ency ranges respectively If the frequency range you are working in crosses the 3 0 GHz point the mechanical switch operates The mechanical switch has a limited number of cycles over which it is reliab...

Страница 101: ...p Centre Marker Frequency MHz Temperature 0o C 55o C At measurement bandwidth of 4 MHz 10 3000 Reference error 100 kHz 3000 26500 Reference error 400 kHz At measurement bandwidth of 4 MHz 10 3000 Refe...

Страница 102: ...to 40 dB Instrument Uncertaintya 0 17 dB a For measurement bandwidths below 4 MHz and spacing between measurement points below 3 MHz gain uncertainty may increase to a maximum of 0 7 dB N8974A N8975A...

Страница 103: ...3 C 10 MHz to 3 0 GHz Frequency Noise Figure Noise Figure over a limited temperature range of 23o C 3o C 10 MHz to 3 0 GHz 4 8 dB 0 00124 freq in MHz 4 4 dB 0 00117 freq in MHz 3 0 GHz to 13 2 GHz 12...

Страница 104: ...d deviation 0 15 dB 1 Characteristic values are met or improved on by 90 of instruments with 90 confidence 2 Subject to maximum operating input power 3 Specified for a 4 MHz measurement bandwidth Jitt...

Страница 105: ...sensitive SWR 50 reference Figure 3 3 Characteristic1 SWR at 23 C 10 0 MHz to 3 0 GHz 10 MHz to 500 MHz 500 MHz to 1 5 GHz 1 5 GHz to 3 0 GHz 3 0 GHz to 6 7 GHz 6 7 GHz to 20 0 GHz 20 0 GHz to 26 5 GH...

Страница 106: ...er Contributing factors are Noise source ENR external gain noise figure and bandwidth including DUT Maximum Protected Input Level 20Vdc 15 dBm peak or average at RF 1 Characteristic values are met or...

Страница 107: ...epetitive sweep of 101 points from 600 MHz to 1 0 GHz with 4 MHz measurement bandwidth 2 Corrected noise figure and gain measured on a 3 dB pad with a repetitive sweep of 101 points from 4 GHz to 6 GH...

Страница 108: ...ernal LO via dedicated LO GPIB connector Upconverter in DUT With fixed or variable IF Instrument can control an external LO via dedicated LO GPIB connector System downconverter Allows the use of an ex...

Страница 109: ...arkers 4 Limit lines Upper and lower for each of 2 channels Display units Noise figure Noise figure F dB or as a ratio F Gain Gain G dB or as a ratio G Y factor Y factor Y dB or as a ratio Y Effective...

Страница 110: ...l D Sub female for connection with IEEE 1284 cable to a PCL3 or PCL5 compatible printer VGA Output1 15 pin mini D SUB female Probe Power nominal 15 Vdc 12 6 Vdc at 150 mA max 10 MHz REF OUT 50 nominal...

Страница 111: ...s Without handle 222mm H x 410mm D x 375mm W With handle max 222mm H x 515mm D x 409mm W Weight typical without options N8973A 15 5 kg 34 2 lbs N8974A 17 5 kg 38 6 lbs N8975A 17 5 kg 38 6 lbs Audible...

Страница 112: ...eld matches the frequency of a measured noise figure or gain the values displayed will deviate from those expected This phenomenon will only affect that specific frequency and the Analyzer will contin...

Страница 113: ...ations General Specifications Specifications Supplemental Information Acoustic Noise Emission Geraeuschemission LpA 70 dB Operator position Normal position Per ISO 7779 LpA 70 dB Am Arbeitsplatz Norma...

Страница 114: ...104 Chapter3 Technical Specifications General Specifications...

Страница 115: ...105 A Model N8973A Test Records This appendix provides test records for you to photocopy and use when working through each calibration and performance verification test on model N8973A...

Страница 116: ...z Out Frequency Reference Accuracy Test Record Standard results Option 1D5 results Description Measured Frequency Hz Specification Hz Pass Fail Frequency Accuracy 20Hz Settability 5Hz Description Meas...

Страница 117: ...st Records Input VSWR Test Record Input VSWR Test Record Measured Frequency Range Frequency at Max Measured VSWR Maximum Measured VSWR Specification Pass Fail 10MHz to 500MHz 1 5 1 500MHz to 1500MHz 1...

Страница 118: ...0 8 00 4 00 10 kHz 100 kHz x 100 00 8 00 4 00 10 kHz 100 kHz x 300 00 8 00 4 00 10 kHz 100 kHz x 600 00 8 00 4 00 10 kHz 100 kHz x 1000 00 8 00 4 00 10 kHz 100 kHz x 1500 00 8 00 4 00 10 kHz 100 kHz x...

Страница 119: ...endix A 109 Model N8973A Test Records Noise Source Supply Accuracy Test Record Noise Source Supply Accuracy Test Record Noise Source Supply Measured Voltage V Specification V Pass Fail Off 1 0 V On 0...

Страница 120: ...and Accuracy Test Record Results 4 5 6 5dB Noise Source ENR Input Level dBm Range dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail...

Страница 121: ...e dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 30 dB 0 05dB 0 5 0 05dB 55 1 0 05dB 56 2 0 05dB 57 3 0 05dB 58 4 0 05dB...

Страница 122: ...Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 10dB 0 5 0 10dB 55 1 0 10dB 56 2 0 10dB 57 3 0 10dB 58 4 0 10dB 59 5 0 10dB 60 6 0 10dB 61 7 0 10dB 62 8 0 10dB 63 9 0...

Страница 123: ...Model N8973A Test Records Gain Measurement Uncertainty Test Record Gain Measurement Uncertainty Test Record Measurement Range dB Worst Pk Pk Instrumentation Uncertainty Specification dB Pass Fail 20 t...

Страница 124: ...ure Test Record Frequency MHz Instrument Noise Figure dB Specification dB Pass Fail 10 00 to 3000 Overall Frequency Range Result Test Line Limit 10 00 4 400dB 30 00 4 440dB 60 00 4 470dB 100 00 4 520d...

Страница 125: ...Appendix A 115 Model N8973A Test Records Measurement Jitter Test Record Measurement Jitter Test Record Frequency MHz Standard Deviation dB Specification dB Pass Fail 1000 0 10dB...

Страница 126: ...116 AppendixA Model N8973A Test Records Measurement Jitter Test Record...

Страница 127: ...117 B Model N8974A Test Records This appendix provides test records for you to photocopy and use when working through each calibration and performance verification test on model N8974A...

Страница 128: ...z Out Frequency Reference Accuracy Test Record Standard results Option 1D5 results Description Measured Frequency Hz Specification Hz Pass Fail Frequency Accuracy 20Hz Settability 5Hz Description Meas...

Страница 129: ...nput VSWR Test Record Input VSWR Test Record Measured Frequency Range Frequency at Max Measured VSWR Maximum Measured VSWR Specification Pass Fail 10MHz to 500MHz 1 5 1 500MHz to 1500MHz 1 7 1 1500MHz...

Страница 130: ...100 kHz x 300 00 8 00 4 00 10 kHz 100 kHz x 600 00 8 00 4 00 10 kHz 100 kHz x 1000 00 8 00 4 00 10 kHz 100 kHz x 1500 00 8 00 4 00 10 kHz 100 kHz x 2000 00 8 00 4 00 10 kHz 100 kHz x 4000 00 8 00 4 0...

Страница 131: ...endix B 121 Model N8974A Test Records Noise Source Supply Accuracy Test Record Noise Source Supply Accuracy Test Record Noise Source Supply Measured Voltage V Specification V Pass Fail Off 1 0 V On 0...

Страница 132: ...and Accuracy Test Record Results 4 5 6 5dB Noise Source ENR Input Level dBm Range dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail...

Страница 133: ...e dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 30 dB 0 05dB 0 5 0 05dB 55 1 0 05dB 56 2 0 05dB 57 3 0 05dB 58 4 0 05dB...

Страница 134: ...Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 10dB 0 5 0 10dB 55 1 0 10dB 56 2 0 10dB 57 3 0 10dB 58 4 0 10dB 59 5 0 10dB 60 6 0 10dB 61 7 0 10dB 62 8 0 10dB 63 9...

Страница 135: ...Model N8974A Test Records Gain Measurement Uncertainty Test Record Gain Measurement Uncertainty Test Record Measurement Range dB Worst Pk Pk Instrumentation Uncertainty Specification dB Pass Fail 20 t...

Страница 136: ...strument Noise Figure dB Specification dB Pass Fail 10 00 to 6700 Overall Frequency Range Result Test Line Limit 10 00 4 400dB 30 00 4 440dB 60 00 4 470dB 100 00 4 520dB 300 00 4 760dB 600 00 5 110dB...

Страница 137: ...Appendix B 127 Model N8974A Test Records Measurement Jitter Test Record Measurement Jitter Test Record Frequency MHz Standard Deviation dB Specification dB Pass Fail 1000 0 10dB...

Страница 138: ...128 AppendixB Model N8974A Test Records Measurement Jitter Test Record...

Страница 139: ...129 C Model N8975A Test Records This appendix provides test records for you to photocopy and use when working through each calibration and performance verification test on model N8975A...

Страница 140: ...z Out Frequency Reference Accuracy Test Record Standard results Option 1D5 results Description Measured Frequency Hz Specification Hz Pass Fail Frequency Accuracy 20Hz Settability 5Hz Description Meas...

Страница 141: ...VSWR Test Record Measured Frequency Range Frequency at Max Measured VSWR Maximum Measured VSWR Specification Pass Fail 10MHz to 500MHz 1 5 1 500MHz to 1500MHz 1 7 1 1500MHz to 3000MHz 1 8 1 3000MHZ t...

Страница 142: ...00 00 8 00 4 00 10 kHz 100 kHz x 600 00 8 00 4 00 10 kHz 100 kHz x 1000 00 8 00 4 00 10 kHz 100 kHz x 1500 00 8 00 4 00 10 kHz 100 kHz x 2000 00 8 00 4 00 10 kHz 100 kHz x 4000 00 8 00 4 00 10 kHz 400...

Страница 143: ...kHz 400 kHz x 23000 00 8 00 4 00 10 kHz 400 kHz x 24000 00 8 00 4 00 10 kHz 400 kHz x 25000 00 8 00 4 00 10 kHz 400 kHz x 26000 00 8 00 4 00 10 kHz 400 kHz x 26496 00 8 00 4 00 10 kHz 400 kHz x Frequ...

Страница 144: ...4 AppendixC Model N8975A Test Records Noise Source Supply Accuracy Test Record Noise Source Supply Accuracy Test Record Noise Source Supply Measured Voltage V Specification V Pass Fail Off 1 0 V On 0...

Страница 145: ...and Accuracy Test Record Results 4 5 6 5dB Noise Source ENR Input Level dBm Range dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail...

Страница 146: ...e dB Actual NF dB Measured NF dB Noise Figure Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 30 dB 0 05dB 0 5 0 05dB 55 1 0 05dB 56 2 0 05dB 57 3 0 05dB 58 4 0 05dB...

Страница 147: ...Measurement Range dB Instrument Uncertainty dB Specification dB Pass Fail 0 125 0 10dB 0 5 0 10dB 55 1 0 10dB 56 2 0 10dB 57 3 0 10dB 58 4 0 10dB 59 5 0 10dB 60 6 0 10dB 61 7 0 10dB 62 8 0 10dB 63 9...

Страница 148: ...Model N8975A Test Records Gain Measurement Uncertainty Test Record Gain Measurement Uncertainty Test Record Measurement Range dB Worst Pk Pk Instrumentation Uncertainty Specification dB Pass Fail 20 t...

Страница 149: ...Pass Fail 10 00 to 26500 Overall Frequency Range Result Test Line Limit 10 00 4 400dB 30 00 4 440dB 60 00 4 470dB 100 00 4 520dB 300 00 4 760dB 600 00 5 110dB 1000 00 5 570dB 1500 00 6 120dB 2000 00...

Страница 150: ...00 12 50dB 15000 00 12 50dB 16000 00 12 50dB 17000 00 12 50dB 18000 00 12 50dB 19000 00 12 50dB 20000 00 12 50dB 21000 00 12 50dB 22000 00 12 50dB 23000 00 12 50dB 24000 00 12 50dB 25000 00 12 50dB 26...

Страница 151: ...Appendix C 141 Model N8975A Test Records Measurement Jitter Test Record Measurement Jitter Test Record Frequency MHz Standard Deviation dB Specification dB Pass Fail 1000 0 10dB...

Страница 152: ...142 AppendixC Model N8975A Test Records Measurement Jitter Test Record...

Страница 153: ...143 D Caring for Connectors The material contained in this appendix may not be apply to the connector you are using on the instrument...

Страница 154: ...latest edition of the HP RF and Microwave Test Accessories Catalog for connector part numbers Handling and Storage Microwave connectors must be handled carefully inspected before use and when not in u...

Страница 155: ...d in cleaning connectors but it is not required for inspection Obvious Defects and Damage Examine the connectors first for obvious defects or damage badly worn plating deformed threads or bent broken...

Страница 156: ...nector itself is damaged and should not be used Try to determine the cause of the damage before making further connections Precision 7 mm Connectors Precision 7mm connectors among them APC 7 connector...

Страница 157: ...conductor contact fingers Figure D 2 and Figure D 3 These are very easily bent or broken and damage to them is not always easy to see Any connector with damaged contact fingers will not make good elec...

Страница 158: ...ting plane surfaces can usually be removed with a quick blast of compressed air This is very easy to do and should always be tried first using compressed air from a small pressurized can The stream of...

Страница 159: ...a cable calibration or verification standard the easiest way to do this is to put a lint free cleaning cloth flat on a table and put a couple of drops of alcohol in the center of the cloth It should b...

Страница 160: ...en toothpick or a smaller diameter wooden rod and then to wrap it with a single layer of lint free cleaning cloth Figure D 4 Cleaning interior surfaces NOTE Metal must never be used it will scratch th...

Страница 161: ...to see clearly the areas you wish to clean Drying Connectors When you have cleaned a connector always be sure that it is completely dry before reassembling or using it Blow the connector dry with a ge...

Страница 162: ...e due to wear or damage Connectors on calibration and verification devices should also be gaged whenever they have been used by someone else or on another system or piece of equipment Precision 3 5mm...

Страница 163: ...onductor mating plane when the connectors are apart When the connection is tightened the collets are compressed into the same plane as the outer conductors For this reason two mechanical specification...

Страница 164: ...lder of the male contact pin could be less than zero when the connectors are mated Gage Type N connectors carefully to avoid damage Type N connectors differ from other connector types in that the oute...

Страница 165: ...Type N Connectors 75 Type N connectors differ from 50 Type N connectors most significantly in that the center conductor male contact pin and female contact hole are smaller Therefore mating a male 50...

Страница 166: ...at you are using the correct connector gage and correct end of the gage calibration block for the connector being measured Hold the gage by the plunger barrel not the dial housing or cap and for male...

Страница 167: ...e pointer still does not line up with the zero mark on the gage loosen the dial lock screw and turn the graduated dial until the gage pointer exactly lines up with zero Then retighten the lock screw F...

Страница 168: ...Hold the gage by the plunger barrel and slip the gage into the connector so that the gage plunger rests against the center conductor Carefully bring the gage into firm contact with the outer conducto...

Страница 169: ...o assure accurate measurements As you bring one connector up to the other and as you make the actual connection be alert for any sign that the two connectors are not aligned perfectly If you suspect t...

Страница 170: ...e a Preliminary Connection Align the two connectors carefully and engage the connector nut over the exposed connector sleeve threads on the other connector Gently turn the connector nut until a prelim...

Страница 171: ...s pre set to the correct value for each connector type are included in many Agilent calibration kits and they are also available separately Torque settings are detailed in Table D 2 When using a torqu...

Страница 172: ...nch to start the process but leave the connection finger tight At all times support the devices and the connection to avoid putting lateral bending force on the connectors Complete the disconnection b...

Страница 173: ...the body of any device as you do so Twisting the connection can damage the connector by damaging the center conductors or the interior component parts to which the connectors themselves are attached I...

Страница 174: ...or out of specification SMA connectors can destroy a precision 3 5mm connector even on the very first connection For this reason it is recommended that you use high quality precision adapters sometim...

Страница 175: ...3 5mm Precision 7mm female 3 5 mm Precision 7mm male 50 Type N Precision 7mm female 50 Type N Precision 3 5mm and SMA Male 3 5mm female 3 5mm Male 3 5mm female 3 5 mm Female 3 5mm female 3 5mm Precis...

Страница 176: ...an Extend sleeve or connector nut Use plastic end caps during storage Touch mating plane surfaces Set connectors contact end down Visual Inspection DO DO NOT Inspect each connector carefully before ev...

Страница 177: ...rs before first use Use an out of spec connector Making Connections DO DO NOT Align connectors carefully Make preliminary connection lightly Turn connector nut only to tighten Use a torque wrench for...

Страница 178: ...168 AppendixD Caring for Connectors Principles of Microwave Connector Care...

Страница 179: ...gages 156 handling and storage 144 inspecting and cleaning the gage 156 introduction 144 making connections 159 mating plane surfaces 145 measuring connectors 158 mechanical inspection 152 mechanical...

Страница 180: ...N8975A Test Record 131 Related Adjustments 26 Required Test Equipment 26 Test Description 24 Test Procedure 28 Test Setup 28 Test Specification 26 vector network analyzer 2 calibration 34 vectornetwor...

Страница 181: ...erating temperature 101 Output format 99 P performance verification preparing for test 1 4 test description 13 performance verification and adjustment procedures 11 Power Requirements 101 preliminary...

Страница 182: ...6 5dB results 110 model N8974A frequency accuracy 120 model N8974A input VSWR 119 model N8974A instrument noise figure 127 model N8974A noise figure range and accuracy 14 16dB results 123 model N8974A...

Страница 183: ...verter in DUT 98 V verification and adjustment listings 11 VGA output 100 visual inspection connectors 145 W warm up time 4 Warning compressed air 148 liquid freon 148 safety class 1 product iv use as...

Страница 184: ...174 Index Index...

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