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Holzworth Instrumentation HA7062C User Manual Download Page 20

 

HA7062D Manual Rev 1.01

 

www.holzworth.com

      

Page 18 of 105

 

 

7.9  CROSS CORRELATION SNR (xCorr SNR) 

The  HA7062D  Application  GUI  calculates  a  'xCorr  SNR'  trace  for  all  cross  correlation 
measurements. This appears as a shaded trace/area on the plot and is shown in the figures below. 
The  xCorr  SNR  trace  shows  the  degree  to  which  cross  correlation  has  improved  a  measurement 
and provides a confidence interval by displaying measurement margin.  
 
When the measured trace is approximately the same as the shaded trace, more cross correlations 
will  improve  the  measurement.  When  the  measured  noise  is  significantly  higher  than  the  shaded 
trace, there is no benefit to increasing the number of correlations.    
 

 

 
The two measurements above show the effect of increasing the number of cross correlations on the 
xCorr SNR trace when measuring a low noise OCXO.   

7.9.1 INSTRUMENT NOISE FLOOR vs. xCORR SNR 

In  theory,  the  xCorr  SNR  should  be  similar  to  the  measured  noise  floor  of  the  instrument  for  the 
same (or similar) carrier frequency. However, measurement conditions may vary significantly from 
the optimal conditions in which Holzworth measures the noise floor, and thus the xCorr SNR may 
vary significantly. External/environmental factors may influence the measured noise and the xCorr 
SNR,  so  ultimately  the  xCorr  SNR  is  used  to  show  measurement  margin  for  the  specific 
measurement, but it is not used to determine the true noise floor of the instrument.   
 
 
    
 
 

 

 

 

 
 

Figure 1 

100MHz OCXO, 10 xCorr 

Figure 2 

100MHz OCXO, 100 xCorr 

Summary of Contents for HA7062C

Page 1: ...HA7062D PHASE NOISE ANALYZER User Manual 1 01 Holzworth Instrumentation Inc 2540 Frontier Ave Suite 200 Boulder CO 80301 USA www holzworth com RoHS ...

Page 2: ...This page intentionally left blank ...

Page 3: ...2D Real Time Phase Noise Analyzer is a fanless chassis design Internal conductive heat dissipation assists with measurement repeatability and accuracy while eliminating microphonics caused by chassis cooling fans When installing the unit into populated communications racks it is recommended that rack cooling fans be used to eliminate thermal run away which may result in measurement errors and or s...

Page 4: ... 7 2 PHASE NOISE MEASUREMENTS 11 7 3 MEASUREMENT SPEED SAMPLE TIME vs MINIMUM OFFSET 12 7 4 xCORRELATIONS vs PHASE NOISE IMPROVEMENT 12 7 5 CROSS CORRELATIONS AVERAGES vs FREQUENCY OFFSET 13 7 6 INTERNAL TIME BASE 13 7 7 MEASUREMENT MODES 13 7 8 INSTRUMENT NOISE FLOOR 14 7 9 CROSS CORRELATION SNR xCorr SNR 18 7 9 1 INSTRUMENT NOISE FLOOR vs xCORR SNR 18 8 0 PHASE NOISE ANALYZER INSTALLATION 19 8 1...

Page 5: ...1 9 9 OUTPUTS 42 9 9 1 DUT SUPPLY OUTPUTS 42 9 9 2 DUT TUNE OUTPUT 42 9 9 3 LO SOURCE OUTPUTS 43 9 9 4 LO TUNE OUTPUTS 43 9 10 ACQUIRING DATA 44 9 11 TRACE CALCS 44 9 11 1 SMOOTHING 45 9 11 2 SPUR DISPLAY 45 9 11 3 RIGHT CLICK FUNCTIONS 46 9 12 MARKERS 47 9 12 1 DECADE MARKERS 47 9 12 2 USER MARKERS 48 9 13 LIMITS 49 9 13 1 LIMIT LINE SETUP 49 9 14 DISPLAY 50 9 14 1 PLOT DISPLAY RANGES 50 9 14 2 P...

Page 6: ...TING 56 11 0 MEASUREMENT EXAMPLES 60 11 1 ADDITIVE MEASUREMENTS 6GHz 60 11 1 1 ADDITIVE MEASUREMENTS USING MECHANICAL PHASE SHIFTERS 61 11 2 2 ADDITIVE MEASUREMENTS USING HX5100 PHASE SHIFTERS 64 11 3 SINGLE CH ADDITIVE MEASUREMENT WITH EXTERNAL MIXER 68 11 4 AM NOISE MEASUREMENTS 72 12 0 CONTACT INFORMATION 73 APPENDIX A PROGRAMMING COMMANDS 74 APPENDIX B ETHERNET CONFIGURATION COMMANDS 100 APPEN...

Page 7: ...lzworth analyzers come with a 2 year 100 product warranty covering manufacturing defects All product repairs and maintenance must be performed by Holzworth Instrumentation Inc Holzworth reserves the right to invalidate the warranty for any products that have been tampered with or subjected to improper use If the unit becomes damaged please contact Holzworth Instruments or your local representative...

Page 8: ...liment the dual core engine to provide one of the most advanced phase noise analyzers available Phase noise measurements do not benefit from modular analyzer architectures Holzworth s fully shielded fan less 1U chassis completely eliminates ground loops and troublesome microphonics for uncompromising performance when compared to traditional rack and stack style systems The HA7062D was designed to ...

Page 9: ...ESSORIES 6 1 1 PRODUCT DIMENSIONS The HA7000 Series analyzers each come in a 1U high rack mountable chassis A universal rack mount bracket kit is an available accessory Part No RACK 1U or RACK2 1U Mechanical dimensions are listed in inches and millimeters 15 00 381 17 00 432 TOP 1 75 44 45 ...

Page 10: ...Connect to LO1 LO2 Output s for standard operation 10MHz to 6GHz 3dBm to 13dBm 22dBm LO1 LO2 Output s Frequency Range standard Power Level Range Connect to LO1 LO2 Input s for standard operation 10MHz to 6GHz 0 001Hz step size 0dBm to 10dBm 0 01dB step size LO1 LO2 Tune Voltage Voltage Tune Range Max Current Tuning Sensitivity For independent Vcc control of external LO sources during External LO M...

Page 11: ...or Type AC Input Rating IEC 320 C13 100 240VAC 47 63Hz Specify country at time of order Data I O Interface Connectivity Storage USB B Type virtual COM port Ethernet RS 232 GPIB SD Card Reader not currently functional 6 1 4 OPERATIONAL ENVIRONMENT DESCRIPTION SPECIFICATION Operating Environment Temperature Humidity Altitude Vibration 10C to 40C RH 20 to 80 at wet bulb temp 29C non condensing 0 to 2...

Page 12: ...et ACCESSORY RACK2 1U 19 Rack mount bracket kit for HA7000 Series Straight rear bracket ACCESSORY 6 1 6 INCLUDED HARDWARE AND CERTIFICATIONS Each standard product delivery includes specific standard hardware and certifications TYPE DESCRIPTION COMMENTS HARDWARE HA7062D PHASE NOISE ANALYZER DELIVERABLE HARDWARE AC Power Cord 7ft 2 1m Specify country of end use DELIVERABLE HARDWARE Ethernet Cable 10...

Page 13: ...GHz DUT Input optional 10 MHz to 26 GHz 10 MHz to 40 GHz RF Input Measurement Level 5 dBm to 20 dBm Input Damage Level 22 dBm Input VSWR 2 0 1 7 2 PHASE NOISE MEASUREMENTS DESCRIPTION SPECIFICATION RF Input Frequency Range 10 MHz to 26 GHz RF Frequency Extension 10MHz to 40GHz with OPT CC40 RF Tracking Range 10ppm typical 5ppm specified Measurement Parameters SSB Phase Noise Offset Frequency Range...

Page 14: ...z 0 1s 1kHz 0 1s 1kHz 0 3s 10kHz 0 1s 10kHz 0 1s 10kHz 0 1s 10kHz 0 1s 10kHz 0 1s 100kHz 0 1s 100kHz 0 1s 100kHz 0 1s 100kHz 0 1s 100kHz 0 1s 1MHz 0 1s 1MHz 0 1s 1MHz 0 1s 1MHz 0 1s 1MHz 0 1s 10 Cross Correlations 64 Samples 128 Samples 256 Samples 512 Samples 1024 Samples 0 1Hz 2m51s 0 1Hz 5m42s 0 1Hz 11m24s 1Hz 11s 1Hz 21s 1Hz 43s 1Hz 1m25s 1Hz 2m51s 10Hz 2 7s 10Hz 5 4s 10Hz 11s 10Hz 22s 10Hz 43...

Page 15: ...he carrier with zero increase in measurement speed 7 6 INTERNAL TIME BASE DESCRIPTION SPECIFICATION Frequency Uncertainty Stability 1Hz at 10MHz 100 ppb At time of shipment Factory calibrated at 21C Frequency Temperature Effects 10ppb Frequency Aging Rate 100ppb yr 10MHz External Lock Range 20Hz typical 10Hz specified 10MHz is for frequency counters only 7 7 MEASUREMENT MODES MODE DESCRIPTION Inte...

Page 16: ...allows for direct access to several internal modules By allowing access to each channels phase detector individually the analyzers allow for actual measured noise floors instead of making noise floor approximations To make a noise floor measurement the front end splitter is bypassed to directly access the phase detector mixer of each channel core while measuring two un correlated frequency sources...

Page 17: ...the measurable noise floor for 1 10 or 100 correlations Further improvement in the noise floor can be achieved by utilizing more correlations See Table 6 4 on page 10 All data shown below was taken with a minimum offset frequency of 1Hz For reference the acquisition times for each measurement are as follows NOTE Higher minimum offset frequency improves measurement speed 1 correlation 4 3s 10 corre...

Page 18: ...HA7062D Manual Rev 1 01 www holzworth com Page 16 of 105 Figure 3 100MHz Noise Floor Measurements Figure 4 1GHz Noise Floor Measurements ...

Page 19: ...HA7062D Manual Rev 1 01 www holzworth com Page 17 of 105 Figure 5 3GHz Noise Floor Measurements Figure 6 6GHz Noise Floor Measurements ...

Page 20: ...efit to increasing the number of correlations The two measurements above show the effect of increasing the number of cross correlations on the xCorr SNR trace when measuring a low noise OCXO 7 9 1 INSTRUMENT NOISE FLOOR vs xCORR SNR In theory the xCorr SNR should be similar to the measured noise floor of the instrument for the same or similar carrier frequency However measurement conditions may va...

Page 21: ... commands sent to the HA7062D using any of the included communication options Alternatively measurement results can be read from the instrument directly without requiring a specific operating system This capability provides unparalleled operational flexibility 8 1 HARDWARE INSTALLATION Prior to initializing the analyzer connect the standard AC power cable between an AC outlet and the rear panel AC...

Page 22: ...orth com Page 20 of 105 9 0 HOLZWORTH PNA SOFTWARE APPLICATION NOTE The HA7000 application GUI does not require any driver installation Simply run the HolzworthPNA executable file to launch the software Analyzer GUI Application Folder ...

Page 23: ... Manual Rev 1 01 www holzworth com Page 21 of 105 9 1 GUI OVERVIEW The reference numbers on the dashboard image correspond with a brief descriptions of each sub menu s function contained on the following page ...

Page 24: ... offset range jitter analysis range of correlations etc 5 Inputs Used to verify DUT and LO input frequency power calibrate LO s make adjustments for internal external LO s etc 6 Outputs Provides access to user controlled outputs including the DUT Power Supply DUT Tune Voltage External LO Tune setting etc 7 Trace Calcs Users can apply smoothing and spur removal functions to a data trace 8 Limits Ap...

Page 25: ... software will then scan for instruments connected via both Ethernet and via USB serial port It will display USB serial port devices as shown below in the USB devices list Identify your instrument by either serial or COM port and select it If the connection is successful the window above Devices will turn blue to indicate a USB connection and it will display the instrument serial number In order t...

Page 26: ...entify the instrument COM port using Windows Device Manager follow the steps below 1 Open the Windows Device Manager and check for the analyzer in the Ports COM LPT category STEP ONE Open the Windows Control panel from the start menu Click on Hardware and Sound STEP TWO Under Devices and Printers select Device Manager ...

Page 27: ...http www holzworth com software Analyzers HA7000D CDM21228_Setup zip After the executable has finished installing the drivers repeat troubleshooting Step 1 4 Attempt to make a connection through a USB hub if available Upon connecting through a hub it may be necessary to repeat troubleshooting Step 1 5 Contact Holzworth Support for further assistance 9 2 2 GPIB COMMUNICATION The Holzworth HA7062D i...

Page 28: ...onnection defaults to the use of DHCP The instrument can be addressed by using either the network assigned IP address or by using the instrument serial number ex HA7062D 123 and the TCP port 9760 Use the Holzworth Ethernet Finder software to locate and modify IP address settings on the instrument To search for devices click the Devices button and then click Locate Devices in the sub menu The softw...

Page 29: ...e Connect button If the connection is successful the window above Devices will again turn green however it will display the IP address 9 3 2 DIRECT PC CONNECTION DHCP When the HA7062D is connected directly to a PC and it is set to DHCP the instrument s default IP address is 169 254 117 11 This IP address can be used to establish communication with the HA7062D when connected directly with no LAN ...

Page 30: ...the Console can be launched by clicking the Console button which is shown in the GUI Overview section section 9 1 Now users can begin sending the ASCII commands from Appendix B The commands should be sent in the order shown in the list and the Console screenshot below 1 Send the command to change the static IP address IP ADDR value 2 Send the command to change the subnet address IP SUBNET value 3 ...

Page 31: ...ded from the Holzworth website Ethernet Finder http www holzworth com software Analyzers HA7000D EthernetFinder jar To assign a static IP address configure the PC so it can communicate with the instrument s default IP address 169 254 117 11 and launch the EthernetFinder jar file Click Locate Device and select your instrument by its serial number then select the Static IP radio button enter the sta...

Page 32: ... configuration is unknown USB communication may be used to reset the analyzer to DHCP or to re configure the static network settings in the same manner as the previous section 2 Establish a USB connection with the analyzer as shown in section 9 1 3 Launch the Console window using the button at the bottom right of the GUI 4 Refer to Appendix B for Ethernet configuration commands Type commands into ...

Page 33: ... Change Adapter Settings 3 In the Change Adapter Settings window right click on any network connections that are not required for communication with the HA7062D and select Disable 4 Close and re launch the application GUI Attempt to establish a connection with the HA7062D 5 If connection remains unsuccessful reset the PC network adapter in use to DHCP Obtain IP address automatically and reset the ...

Page 34: ...Ethernet connection between the PC and analyzer both will default to network settings that will allow communication The analyzer IP address will default to 169 254 117 11 and the subnet address will default to 255 255 0 0 The PC IP address will default to 169 254 xxx xxx and the subnet address will default to 255 255 0 0 7 Close and re launch the application GUI Attempt to establish a connection t...

Page 35: ...e latest software and extract all files from the zip file Double click the exe file to launch the application GUI 2 Establish a USB connection with the analyzer as shown in section 9 2 3 Click the System button in the top left corner of the GUI Select Update Firmware The firmware updater window will now open Click the Update button The updater will now check for updates and apply them as necessary...

Page 36: ...M noise characterization of the carrier signal o Baseband Measure directly at baseband typically used for measurements with external phase detectors or measuring DC power supplies Data Type Data Type is set to Cross Correlation by default Users can set to Channel 1 or Channel 2 to perform single channel phase noise measurements Single channel measurements are typically only recommended for additiv...

Page 37: ...of the carrier frequency as shown in the table below DUT Frequency Fc Max Measurement Offset Fc 35MHz 2MHz 35MHz Fc 70MHz 10MHz 70MHz Fc 250MHz 20MHz Fc 250MHz 100MHz Integration Sets the limits for jitter integration calculation Minimum setting is 0 1Hz and maximum is 100MHz The jitter calculations are displayed beneath the plot with other measurement details Integration limits can be adjusted be...

Page 38: ...t The instrument will perform the set number of correlations repeatedly and display the data and then will continue to correlate on the same measurement Example If correlations is set to 1 it will first perform 1 correlation and then display result then it will perform 1 more correlation and display data that is now the result of 2 cross correlation operations Thus the user will be seeing a measur...

Page 39: ...ive measurements only this sets the tolerance for system quadrature If quadrature cannot be achieved this setting may need adjusted Please contact support holzworth com for assistance adjusting this setting DUT Frequency Range The HA7062D must be set to the appropriate frequency range per the carrier frequency at the main DUT Input connector By default the HA7062D will automatically detect the DUT...

Page 40: ...to use the instrument s internal splitter or an external splitter and account for external splitter loss The HA7062D internal splitter is a broadband resistive type splitter Some measurements may benefit from a narrowband splitter which can provide improved isolation DUT Mixer Kd External mixers can be used with the HA7062D as a means to perform additive phase noise measurements at frequencies 6GH...

Page 41: ...tion if Holzworth HX5100 phase shifters are in use Additionally a calibration file must be loaded to ensure accurate auto calculation of Kd The HX5100 calibration tables are included on the Holzworth USB drive that shipped with the HA7062D HX5100 s To load HX5100 calibration tables click System followed by Load HX5100 Calibration Files o Mechanical Select if mechanical phase shifters are in use Us...

Page 42: ... for the internal or external LO s o To account for any drifting of the internal references the HA7062D internal LO s should be calibrated once every three months in the first year of use and at least once per year after the first year of use The instrument must be allowed to warm up for at least 10 minutes prior to calibrating the LO s to allow the internal OCXO s to reach operating temperature o...

Page 43: ...uency or Power are received users should verify signal presence here If either channel DUT or LO reads 0 0Hz and below 10 0dBm this indicates that there is no signal present at the given input connector Users should check that the DUT is powered on that all RF cables are good and that the copper coaxial jumper cables are installed on the front of the instrument If signal still does not appear to b...

Page 44: ...the phase noise analyzers This is useful for DUT s or other test system components in need of DC power Supply Voltage Adjustable from 0V to 12V Current Limit 250mA non adjustable 9 9 2 DUT TUNE OUTPUT The DUT Tune Output is a DC voltage output on the front panel of the phase noise analyzers It can be adjusted with a resolution of 1mV allowing users to finely tune a DUT such as a VCO or OCXO DUT Tu...

Page 45: ...aneous voltage level at tune voltage outputs LO1 LO2 Start Stop Sets the tuning voltage range for External LO s Settable from 10V to 12V Accurately setting the tune voltage range of each External LO is necessary for achieving a valid calibration lookup table and phase locking For external LO mode the phase noise performance of each external LO should be similar however the tune voltage slope of th...

Page 46: ...on is not depressed all traces will be cleared from the plot area when Acquire is pressed and a single new measurement will be displayed Measurement Progress Bar Time Remaining When a measurement is in progress The Holzworth Shockwave serves as a progress bar and the time remaining is also displayed as shown below 9 11 TRACE CALCS Trace Calcs menu allows the user to apply a smoothing function to a...

Page 47: ...re always recorded in the spur table report regardless of the spur display setting The spur threshold is relative to the smoothed data trace The smoothed trace is computed in the background if Smoothing is not enabled by the user Normal Spur Display will not remove any spurs from a trace Remove will remove any spurs from the trace that are greater than the set threshold Scale to dBc will convert s...

Page 48: ...t and right click a trace to perform the following functions Reset Axes to the measurement range or to the range set in the Display menu Quick access to the Smoothing and Spur Display functions Change selected trace color Rename Trace Remove selected trace or remove all traces from plot area ...

Page 49: ... are customizable NOTE If Smoothing is applied to a trace the Markers will appear on an average value Dynamic Marker Holding the CTRL button with your mouse cursor in the plot area will enable a Dynamic Marker The Dynamic Marker will follow the x axis position of the mouse and move along the selected trace while displaying frequency and amplitude 9 12 1 DECADE MARKERS Decade Markers are a set of 7...

Page 50: ...ser Markers display the dBc Hz value at the frequency entered above Any given marker can be turned on or off with the Show check box Frequency User Markers can be places at any frequency between 0 1Hz and 100MHz Interpolation When enabled the software will interpolate a data value if necessary and show that data value at the exact frequency specified With Interpolation off the marker will snap to ...

Page 51: ...d limit line as a Holzworth Limit File hlf Load Limits allows the user to load a Holzworth Limit File or a csv file Clear All will remove the limit points line from the plot area Limit Point Frequency is user defined and sets the frequency for a given limit point Limit Point Value sets the amplitude limit of a given point Mode Change the transition from one limit point to the next to either a Slop...

Page 52: ...djust the x axis frequency or check the Use Meas Range box to have the display automatically use the measurement range set in the Measurement menu Y Axis Start Stop Manually adjust the y axis range amplitude This will not be automatically scaled Show Jitter Limits When checked the jitter analysis range will be shown as two vertical dashed lines in the plot area The jitter limits correspond with th...

Page 53: ...eld Y Axis Label The plot y axis will be labeled as whatever is entered into this field Trace Names are completely customizable by the user by editing the text in the fields shown above The default trace naming scheme can be set to use the trace name as entered into the Trace Name text field For example in the above configuration traces will be named Trace 1 Trace 2 etc The default trace naming sc...

Page 54: ...t have been sent to the instrument and the instruments response to each command Refer to Appendix A for the complete ASCII command set An image of the Console opened within the GUI is highlighted below As shown in section 9 2 3 the Console is a convenient way to configure static IP settings Additionally users can reference the Console window in order to see the command sequence during a measuremen...

Page 55: ...HolzworthPNA software When a htf file is loaded the GUI will appear as it did when the measurement took place The trace will appear in the same color and with any smoothing spur removal or markers that were applied Full measurement statistics will also populate below the plot area 9 16 2 IMPORT EXPORT DATA COMMA SEPARATED VALUE CSV Users can utilize the Comma Separated Value csv file format to sav...

Page 56: ...tistics will pertain to the last selected trace if there are multiple The Print feature will produce the same image of the plot area however it will be sent directly to print and will not be saved electronically 9 17 TOOLS MENU DC Monitor The DC Monitor is used to set quadrature for additive phase noise measurements utilizing mechanical phase shifters or baseband measurements using external phase ...

Page 57: ...then click Save Instrument Settings Load Saved Settings will load the instrument configuration that was last saved to internal memory 9 18 2 VIEW DEBUG View Debug will open a log of all instrument information and activity since it was last powered on and used This can be saved as a PDF and is very useful troubleshooting information If there are any errors or issues using the instrument the debug f...

Page 58: ...gnals with a spectrum analyzer Error Message DUT frequency outside range of external LO s Increase frequency counter interval and re calibrate LO s Description The DUT frequency is not within the tunable range of the external LO s Troubleshooting Confirm that the LO sources are of the same frequency tuning capability as the DUT Increase the frequency counter interval and re calibrate the LO s in o...

Page 59: ...ttenuation is required to measure DUT s outside of the specified input power range Check power supply and RF cables connections Check that the copper coaxial jumper cables are installed and properly torqued on the front of the instrument Error Message LO1 LO2 calibration table is not monotonic Increase frequency counter interval and re calibrate LO s Description Applies to External LO s only The L...

Page 60: ...urement initializes Check quality of RF cables Error Message No zero crossing detected on LO1 or LO2 path Description Applies to additive measurements with HX5100 s only The instrument is not able to tune the HX5100 s to a 90 phase shift relative to the DUT path Troubleshooting Check that the appropriate HX5100 s are in use for the given carrier frequency Check that the tune voltage is present at ...

Page 61: ...to ensure proper phase detector operation The minimum is 3 dBm 7dBm to 13dBm is the optimal range Troubleshooting Signal power must be increased amplified or attenuated ideally within the range of 7dBm to 13dBm for optimal measurement sensitivity Error Message Missing HX5100 frequency voltage delay data array Description Applies to additive measurements with HX5100 s only Indicates that a portion ...

Page 62: ...easurement and is taken without the DUT in the system cabling the DUT path from the output of the divider directly into the instrument rather than through the DUT The second measurement is the added noise due to the DUT in the system The LO inputs optimal drive range is 7 to 13 dBm The minimum acceptable input is 3dBm and 13dBm is the maximum for proper phase detector operation 7dBm to 13dBm ensur...

Page 63: ...HA7062D Manual Rev 1 01 www holzworth com Page 61 of 105 11 1 1 ADDITIVE MEASUREMENTS USING MECHANICAL PHASE SHIFTERS HARDWARE CONFIGURATION ...

Page 64: ...Span and Trigger Averaging Bandwidth sub sections adjust measurement settings as necessary for the DUT including measurement offset range limits for integration to calculate jitter data resolution and the number of cross correlations to be performed 3 Click the Inputs button on the right side of the software interface in the Phase Shifters drop down select Mechanical ...

Page 65: ...not present at the DUT Inputs check that the two copper coaxial cables are connected at the instrument front panel Lastly check for signal on a spectrum analyzer 4 The system must now be manually put into quadrature by adjusting the phase shifters and using the DC Monitor feature which is located in the Tools drop down list at the top left of the GUI Adjust each phase shifter until quadrature 0 Vd...

Page 66: ...HA7062D Manual Rev 1 01 www holzworth com Page 64 of 105 11 2 2 ADDITIVE MEASUREMENTS USING HX5100 PHASE SHIFTERS ...

Page 67: ... along with the HA7062D To load HX5100 calibration tables click System followed by Load HX5100 Calibration Files Contact Holzworth Support if the calibration files cannot be located First select the calibration file for the HX5100 that is connected to the LO1 input Next select the calibration file for the HX5100 that is connected to LO2 2 Click the Measurement button Set the Measurement Type to Ad...

Page 68: ...the DUT Inputs sub section of the Inputs menu Also in the Inputs menu verify the LO power levels by clicking the Measure Input Frequency and Power button in the LO Test section LO power levels should be in the range of 7 to 13 dBm for optimal measurement sensitivity 5 When hardware and software configuration is complete and LO power levels are within range click the Acquire button to begin the mea...

Page 69: ...holzworth com Page 67 of 105 6 As shown in the diagram the DUT is a Holzworth HX2400 RF Amplifier and the source frequency is 1GHz The gold trace shows the amplifier additive phase noise and the red trace is the system noise floor ...

Page 70: ...to perform an additive measurement in this manner will allow the user to measure the phase noise at frequencies 6GHz Below is a detailed block diagram for performing a single channel additive phase noise measurement using an external mixer with the HA7062D Phase Noise Analyzer External Additive mode utilizes the Baseband inputs for direct access to the FFT engine of the HA7062D ...

Page 71: ...culation to Manual 4 In the Frequency Span sub section adjust both the frequency measurement range offset range for the measurement as well as the jitter integration range 5 In the Trigger Averaging Bandwidth sub section adjust Data Resolution as necessary and Number of Correlations as necessary 6 Click the Inputs button on the right side of the software interface Check that the DUT Mixer setting ...

Page 72: ...dow change the Source Selection to Baseband Input Click Start to begin actively monitoring the DC voltage at the baseband input Only Channel 1 Voltage is of concern Adjust the mechanical phase shifter until the voltage is as close to 0 00000V as possible c Record the value from the mechanical phase shifter In this example it is 55 06 ...

Page 73: ...st the phase shifter so that channel 1 is back to as close to 0 00000V as possible Click Stop in the DC Monitor window f Calculate the delta in the phase shifter readings 55 06 54 44 0 62 g Multiply the delta by the carrier frequency in GHz to calculate degrees 0 62 x 3GHz 1 86 degrees h Convert degrees to radians and then divide volts radian where volts 10mV 1 86 degrees 0 0325 radians Kd 10mV 0 ...

Page 74: ...ing is displayed at the bottom right of the screen by the Holzworth shockwave The shockwave also acts as a progress bar Noise floor measurement of the external mixer system 11 4 AM NOISE MEASUREMENTS AM Noise measurements can be performed with any measurement setup AM Noise measurements can be useful for phase noise data validation or for simply characterizing AM noise of a source Change Measureme...

Page 75: ...pport A list of US Sales Representatives and non US Distribution partners are listed on the Holzworth website Holzworth Instrumentation Sales Support Phone 1 303 325 3473 option 1 Email sales holzworth com Holzworth Instrumentation Technical Support Phone 1 303 325 3473 option 2 Email support holzworth com www HOLZWORTH com ...

Page 76: ...32 or GPIB The ASCII commands begin with a colon or asterisk If a command is not understood the phase noise analyzer will have in its buffer Invalid Command The format for describing the command instruction is as follows COMMAND value suffix A Description of the command here value Defined here if any queries typically have no value suffix Units i e Hz or dBc Example TX Example ASCII sent in transm...

Page 77: ...ST RX Reset performed SAV Saves the current instrument state to memory Example TX SAV RX Analyzer saved RCL Recalls the saved analyzer state from memory Example TX RST RX Analyzer recalled IDN Returns the instrument model number serial number and comm module firmware version Example TX IDN RX Holzworth Instrumentation HA7062D 024 Ver 1 92 ...

Page 78: ... type to be performed Example TX SENS PN MEAS TYPE ADDITIVE RX Measurement type set value Absolute Additive AM Noise Baseband SENS PN MEAS TYPE Reads back measurement type Example TX SENS PN MEAS TYPE RX Additive of Correlations SENS PN CORR COUN value Sets of correlations Example TX SENS PN CORR COUN 10 RX Number of correlations set SENS PN CORR COUN Reads back of correlations Example TX SENS PN ...

Page 79: ...mple TX SENS PN FREQ STAR 100Hz RX Frequency start set SENS PN FREQ STAR Query measurement start frequency Example TX SENS PN FREQ STAR RX 100 SENS PN FREQ STOP value Sets frequency offset stop how far from the carrier to measure Example TX SENS PN FREQ STOP 10MHz RX Frequency stop set SENS PN FREQ STOP Query measurement stop frequency Example TX SENS PN FREQ STOP RX 10000000 ...

Page 80: ...X SENS PN DATA TYPE CHANNEL 1 RX Data type set value Channel 1 Channel 2 Cross SENS PN DATA TYPE Queries data type Example TX SENS PN DATA TYPE RX Cross OR Channel 1 OR Channel 2 Trigger Type SENS PN MODE value Sets the trigger type for the measurement Example TX SENS PN MODE PERSIST RX Persist mode set value Single Each Continuous Persist SENS PN MODE Queries trigger type Example TX SENS PN MODE ...

Page 81: ... 1024 SENS PN SAMPLES COUN Queries data resolution Example TX SENS PN SAMPLES COUN RX 1024 Mixer Conversion Calculation Kd SENS PN MCONV value Sets the mixer conversion calculation Kd to be calculated automatically or entered manually Example TX SENS PN MCONV AUTOMATIC RX Automatic Kd calculation in use value Automatic Manual SENS PN MCONV Queries mixer conversion calculation setting Example TX SE...

Page 82: ...uery PLL lock BW setting Example TX SENS PN VCO RX VCO Measurement Enabled OR VCO Measurement Disabled Quadrature Specification additive measurements only SENS PN QUAD SPEC value Specifies the requirement for quadrature in degrees for Additive measurements Example TX SENS PN QUAD SPEC 0 1DEG RX Quadrature specification set value 0 1 0 2 0 5 1 0 2 0 5 0 10 0 NO LIMIT SENS PN QUAD SPEC Query PLL loc...

Page 83: ... holzworth com Page 81 of 105 IF Gain SENS PN GAIN value Sets the IF Gain dB for the measurement Example TX SENS PN GAIN 42 dB RX Gain set value Auto 0 14 28 42 SENS PN GAIN Queries IF Gain setting Example TX SENS PN GAIN RX Auto ...

Page 84: ...V AUTO RX TX RX Divisor set to auto detect SENS PN DIV 4 Divisor set to 4 value Auto 1 2 4 8 SENS PN DIV Queries DUT input frequency range Example TX SENS PN DIV RX 1 2 4 or 8 NOTE Divisor states correspond to the DUT Frequency Range as shown in the table below Divisor State Frequency Range 1 10MHz 6GHz 2 6 1GHz 12GHz 4 12 1GHz 24GHz 8 24 1GHz 26 5GHz ...

Page 85: ...X 31999999200 7 881 CALC FP DATA CARR CH2 Query input frequency Hz and power level dBm for CH2 Example TX CALC FP DATA CARR CH2 RX 31999999200 7 881 Query LO Input Frequency and Power Level CALC FP DATA LO1 Query input frequency Hz and power level dBm for LO1 Example TX CALC FP DATA LO1 RX 31999999200 7 881 CALC FP DATA LO2 Query input frequency Hz and power level dBm for LO2 Example TX CALC FP DA...

Page 86: ...rnal splitter set value Internal External SENS CORR POW STAT Queries DUT splitter setting Example TX SENS CORR POW STAT RX Splitter internal DUT Mixer Phase Detector SENS PN MEXT value Changes the mixer setting to either internal or external Example TX SENS PN MEXT OFF RX External mixer not in use value On Off SENS PN MEXT Queries DUT mixer setting Example TX SENS PN MEXT RX External mixer not in ...

Page 87: ...lly in the order it appears in the file MMEM PN CAL HX5100 CHn DATA value Loads one line from HX5100 calibration file n Channel Example TX MMEM PN CAL HX5100 CH2 DATA value RX HX5100 Channel 2 calibration data processed value See next page MMEM PN CAL HX5100 VALID Check if all calibration data was loaded successfully Example TX MMEM PN CAL HX5100 VALID RX HX5100 cal data valid OR HX5100 cal data i...

Page 88: ...1 01 www holzworth com Page 86 of 105 Load HX5100 Calibration Data continued each calibration file line must be loaded individually in the order it appears in the file Calibration file line enumeration Line 1 1 2 3 4 5 n ...

Page 89: ...O STATUS EXT RX LO status external value EXT INT SENS PN LO STATUS Queries LO mode setting Example TX SENS PN LO STATUS RX External LO status Set Frequency Counter Interval for external LO s only SENS PN FREQ CNTR value Sets frequency counter interval for external LO calibration Example TX SENS PN FREQ CNTR 0 5S RX 0 5S frequency counter interval set value 0 01S 0 02S 0 05S 0 1S 0 2S 0 5S 1S 2S 5S...

Page 90: ...ENS PN LO1 VTUNE MAX Queries max tune voltage for specified LO Example TX SENS PN LO1 VTUNE MAX RX 9 375V SENS PN LO1 VTUNE MIN value Sets minimum tune voltage for LO1 Example TX SENS PN LO1 VTUNE MIN 6 500 RX 6 500V set for LO1 max tune voltage value 10 000 to 12 000 SENS PN LO1 VTUNE MIN Queries min tune voltage for specified LO Example TX SENS PN LO1 VTUNE MIN RX 6 500V NOTE Replace LO1 with LO...

Page 91: ...tus STAT OPER COND Returns the status of the instrument Example TX STAT OPER COND RX Instrument Busy OR Instrument Ready NOTE Returns Instrument Busy during calibration returns Instrument Ready when calibration is complete Continuously sending this command during calibration will slow the process Cancel Calibration Routine CALC PN TRACE HOLD Stops the LO calibration routine Example TX CALC PN TRAC...

Page 92: ... to read back calibration data from LO2 Calibration table readout is comma delimited for values associated with each calibration point and the data set for each point is delimited by a vertical bar The first calibration point is always number 0 Example cal point0 Vtune freq MHz pwr lvl cal point1 Vtune freq MHz pwr lvl 0 8 750 999 9874700MHz 10 700dBm 1 8 250 999 9881210MHz 10 700dBm External LO c...

Page 93: ... Volts written to supply voltage output value 0 000 to 12 000 SENS PN DUT VSUPPLY Queries DUT supply voltage Example TX SENS PN DUT VSUPPLY RX 12 000 Volts DUT Tune Voltage SENS PN DUT VTUNE value Sets the DUT tune voltage Example TX SENS PN DUT VTUNE 8 000V RX 8 000 Volts written to tune output value 10 000 to 12 000 SENS PN DUT VTUNE Queries DUT tune voltage Example TX SENS PN DUT VTUNE RX 8 000...

Page 94: ...625000 MHz to 6 0010000000 GHz SOUR LO1 FREQ Queries LO1 frequency Example TX SOUR LO1 FREQ RX 100 000000000 MHz SOUR LO1 PWR value Sets the power level of internal LO1 Example TX SOUR LO1 PWR 5 00dBm RX 5 00 set for LO1 power value 0 00 to 10 00 SENS LO1 PWR Queries LO1 power Example TX SOUR LO1 PWR RX 5 00 NOTE Replace LO1 with LO2 in any of the commands in this section to set or query frequency...

Page 95: ...status Example TX SENS PN CORE STATUS RX Measurement initialized OR Data not ready Loop issuing this command until you receive Measurement initialized If you receive Data not ready the measurement has failed If the measurement is initialized proceed to the STAT OPER COND command on next page If the measurement fails check for errors using the command below SENS PN CORE ERROR Checks for error messa...

Page 96: ...NS PN CORE DEBUG RX Debug information will vary 3 Check Instrument Status STAT OPER COND Returns the status of the instrument Example TX STAT OPER COND RX Instrument Busy OR Instrument Ready Loop issuing this command until you receive Instrument Ready then proceed to 4 4 Read Number of Points SENS PN SWE POIN Returns the number of measurement points Example TX SENS PN SWE POIN RX Integer value wil...

Page 97: ...ts match the number returned from in 4 NOTE This command will return smoothed data and or data with spurs removed if either or both are enabled using the commands in the Smoothing and Spur Removal section 6 Read Frequency Data From Instrument CALC PN DATA XDAT Returns the frequency data Example TX CALC PN DATA XDAT RX Returns frequency data in comma separated string Continue reading data until the...

Page 98: ...specified frequency offset value Read Marker Data Spot Noise CALC PN TRAC MARK value Returns the phase noise value at specified frequency offset Example TX CALC PN TRAC MARK 10kHz RX 10 0014354e 03 1 2177e 02 value frequency offset in Hz unless kHz MHz are specified NOTE The response is formatted as freq offset amplitude Marker Data Interpolation CALC PN TRAC MARK INTERP value Enable disable inter...

Page 99: ...g a measurement Smoothing CALC PN TRAC SMO STAT value Turn smoothing on off Example TX CALC PN TRAC SMO STAT ON RX Smoothing on value ON OFF CALC PN TRAC SMO STAT Queries smoothing status Example TX CALC PN TRAC SMO STAT RX ON CALC PN TRAC SMO PNTS value Sets number of smoothing points Example TX CALC PN TRAC SMO PNTS 25 RX 25 smoothing points set value 3 to 99 CALC PN TRAC SMO PNTS Queries number...

Page 100: ...requency Example TX CALC PN TRAC BDM X STAR RX 100 CALC PN TRAC BDM X STOP value Sets the jitter integration stop frequency Example TX CALC PN TRAC BDM X STOP 10MHz RX Band marker stop set CALC PN TRAC BDM X STOP Queries jitter integration stop frequency Example TX CALC PN TRAC BDM X STOP RX 10000000 CALC PN TRAC FUNC INT DATA Read back the jitter data Example TX CALC PN TRAC FUNC INT DATA RX Comm...

Page 101: ...PN TRAC SPUR OMIS RX ON CALC PN TRAC SPUR THR value Sets spur removal threshold Example TX CALC PN TRAC SPUR THR 5 RX 5 dB spur threshold set value 0 to 99 CALC PN TRAC SPUR THR Queries spur removal threshold Example TX CALC PN TRAC SPUR THR RX 6 SENS PN SWE SPUR POIN Read back number of spurs found above threshold Example TX SENS PN SWE SPUR POIN RX 11 CALC PN DATA SDAT Read back spur amplitude a...

Page 102: ...0 bytes but the default should be 64 bytes Bytes sent beyond 64 will be ignored If a command is not understood the module will have in its buffer Invalid Command The format for describing the command instruction is as follows COMMAND value A Description of the command here value Defined here if any queries typically have no value Example TX Example ASCII sent in transmission RX Example ASCII recei...

Page 103: ...TUS Query IP status Example TX IP STATUS RX Static IP Address or DHCP IP ADDR value Set Static IP Address value IP Address Example TX IP ADDR 192 168 10 11 RX Static IP address changed IP ADDR Query Static IP Address only Will not return address s assigned via DHCP Example TX IP ADDR RX 192 168 10 11 IP GATEWAY value Set Gateway IP Address for Static IP value Gateway IP Address Example TX IP GATEW...

Page 104: ...tion Commands continued IP GATEWAY Query Gateway Address Example TX IP GATEWAY RX 192 160 10 1 IP SUBNET value Set Subnet for Static IP Address value IP Address Example TX IP SUBNET 255 255 0 0 RX Subnet address changed IP SUBNET Query Subnet Address Example TX IP SUNET RX 255 255 0 0 ...

Page 105: ... OFF Example TX GPIB EOIWLC ON RX EOI with last character enabled GPIB EOIWLC Query instrument GPIB EOI with last character Example TX GPIB EOIWLC RX EOI with last character disabled or EOI with last character enabled GPIB RESPOND value Set Instrument GPIB to always return a response value ON or OFF Example TX GPIB RESPOND ON RX GPIB responds with every command or GPIB only responds to queries GPI...

Page 106: ...HA7062D Manual Rev 1 01 www holzworth com Page 104 of 105 USER NOTES ...

Page 107: ...HA7062D Manual Rev 1 01 www holzworth com Page 105 of 105 USER NOTES ...

Page 108: ...All rights reserved Holzworth Instrumentation Inc 2540 Frontier Ave STE 200 Boulder Colorado 80301 USA 1 303 325 3473 www HOLZWORTH com Version Rev 1 01 July 2019 ...

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