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CALIBRATION PROCEDURE

PXIe-5673

Vector Signal Generator

This document contains the verification procedures for the PXIe-5673 Vector Signal Generator.
Refer to

ni.com/calibration

for more information about calibration solutions.

Contents

Characterizing the Power Splitter..................................................................................... 5

As-Found and As-Left Limits................................................................................................... 8
Verification............................................................................................................................... 8

Содержание PXIe-5673

Страница 1: ...aracterizing the Power Splitter 5 As Found and As Left Limits 8 Verification 8 Verifying LO Output Power Accuracy 9 Verifying Modulation Impairments 9 Verifying Modulation Bandwidth and Impairments 11...

Страница 2: ...le device To calibrate the PXIe 5450 Waveform Generator PXIe 5611 IQ Modulator or PXI 5650 5651 5652 RF Analog Signal Generator individually refer to their calibration procedures at ni com manuals Cal...

Страница 3: ...ise Frequency accuracy Frequency range 50 MHz to 19 8 GHz Noise floor 152 dBm Hz to 6 6 GHz SMA m to SMA m cable 36 inches Huber Suhner H S ST 18 SMAm SMAm 36 Operating frequency DC to 18 GHz Impedanc...

Страница 4: ...ppropriate for the type of RF connector you are using NI recommends using a 0 565 N m 5 lb in torque wrench for SMA connectors and a 0 90 N m 8 lb in torque wrench for 3 5 mm connectors Power splitter...

Страница 5: ...or each other iteration Zero and calibrate the power meter sensors before each test Initial Setup Refer to the NI RF Signal Generators Getting Started Guide for information about how to install the so...

Страница 6: ...use a cable it should be as short as possible The cable should always be used with the splitter for subsequent verification procedures in this document that require a splitter 8 Connect one available...

Страница 7: ...requency ranges in 5 MHz increments including endpoints PXI 5650 85 MHz to 1 3 GHz PXI 5651 85 MHz to 3 3 GHz PXI 5652 85 MHz to 6 6 GHz Store the resulting measurements as splitter i dB 1 PXI 5650 56...

Страница 8: ...to determine whether the PXIe 5673 meets the device specifications when it is received for calibration The as left limits are equal to the published NI specifications for the PXIe 5673 less guard ban...

Страница 9: ...increments including endpoints PXI 5650 85 MHz to 1 3 GHz PXI 5651 85 MHz to 3 3 GHz PXI 5652 85 MHz to 6 6 GHz Store the resulting measurements If the results are within the selected test limit the...

Страница 10: ...olution bandwidth 500 Hz Sweep time 5 ms Reference clock source External Note Zero span mode of the spectrum analyzer shortens test time by avoiding unnecessary frequency sweeping To obtain the averag...

Страница 11: ...he ISR and CSR from step 9 for each LO frequency If the results are within the selected test limit the device has passed this portion of the verification Verifying Modulation Bandwidth and Impairments...

Страница 12: ...500 Hz Sweep time 5 ms Reference clock source External 7 Use the spectrum analyzer to measure the mean output power of image using the following spectrum analyzer parameter settings Center frequency F...

Страница 13: ...in Table 5 If the results are within the selected test limit the device has passed this portion of the verification Table 5 Modulation Bandwidth Impairment Verification Test Limits CW Source LO Frequ...

Страница 14: ...eform Generator 2 PXIe 5611 IQ Modulator 3 PXI 5650 5651 5652 RF Analog Signal Generator PXI 5652 shown 4 BNC m to SMA m Cable 5 Power Sensor 6 Rubidium Frequency Source Rear Panel 7 BNC m to BNC m Ca...

Страница 15: ...n step 8 of the Characterizing the Power Splitter section must be the same port used to connect the power splitter to the power meter in step 5 of this section 5 Connect port A of the power splitter t...

Страница 16: ...n 5 dB Preamplifier niRFSG Power Level property 13 Use the power meter measurements to calculate a correction for the spectrum analyzer inaccuracies and attenuator loss with the following equation Cor...

Страница 17: ...ter frequency Frequency in step 8 1 MHz Reference level 30 dBm Frequency span 0 Hz Resolution bandwidth 500 Hz Sweep time 200 ms Reference clock source External Attenuation 5 dB Preamplifier On 16 Mea...

Страница 18: ...arrier and 2 3 MHz F2 offset from the carrier with the following niRFSG property settings Frequency Hz 85 MHz Power Level dBm 0 dBm Generation Mode Arb Waveform Power Level Type Peak Power Reference C...

Страница 19: ...litude of the second close in IMD tone at 87 6 MHz LO 2F2 F1 Name this value I2 Use the following spectrum analyzer parameter settings Center frequency Frequency in step 5 F2 Reference level 0 dBm Fre...

Страница 20: ...nt panel connector 4 Connect any available rubidium frequency reference rear panel BNC connector to the spectrum analyzer REF IN rear panel connector through the BNC m to BNC m cable 5 Generate an arb...

Страница 21: ...ranges in 250 MHz increments including endpoints PXI 5650 85 MHz to 1 3 GHz PXI 5651 85 MHz to 3 3 GHz PXI 5652 85 MHz to 6 6 GHz Store the resulting measurements 8 Compare the measured values to the...

Страница 22: ...rough the BNC m to BNC m cable 5 Generate a signal with the following niRFSG property settings Frequency Hz 100 MHz Power Level dBm 0 dBm Generation Mode CW Reference Clock Source ClkIn 6 Use the spec...

Страница 23: ...ubharmonic and non integer harmonic levels outside the device frequency range are typical If the results are within the selected test limit the device has passed this portion of the verification Verif...

Страница 24: ...uency span 0 Hz Resolution bandwidth 500 Hz Sweep time 5 ms Reference clock source External 7 Use the spectrum analyzer to measure the baseband linearity related spur using the following spectrum anal...

Страница 25: ...any available rubidium frequency reference rear panel BNC connector to the spectrum analyzer REF IN rear panel connector through the BNC m to BNC m cable 5 Generate a single sideband tone with a 3 MH...

Страница 26: ...limits as specified in Table 13 11 Repeat steps 6 through 10 for the remaining frequencies listed in the Frequency column in Table 13 If the results are within the selected test limit the device has p...

Страница 27: ...Verify that the measurement in step 5 is within the 9 ppm test limit with respect to 400 MHz If the results are within the selected test limit the device has passed this portion of the verification Ad...

Страница 28: ...Initialize External Calibration VI 2 Call the niRFSG Close External Calibration VI to close the session Set the write calibration to hardware parameter to TRUE to store the results to the EEPROM on th...

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