Keysight Technologies M937 A PXIe Series Service Manual

Also see for M937 A Series: Startup guide

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Keysight Technologies M937 A PXIe Series Service Manual Manual pdf 51 page image

Keysight M937xA PXIe Service Guide 2-31Tests, Adjustments, and TroubleshootingPerformance TestsSource Power Accuracy TestFunction of the TestTo confirm the accuracy of the source output power of your network analyzerover its full frequency range.Specification TestedTest Port Output – Power Level AccuracyEquipment Used- Components for the PNAasPowerMeter1 :— PNA (N5241A/42A, or N5221A/22A, or E8363C/64C2 )— 10 dB attenuator— 3.5 mm (-m- to -f-) test cable- Components for calibrating the PNAasPowerMeter:— U8485A USB Thermocouple Power Sensor (or N8485A power sensorwith N1912A/13A/14A power meter)— ECal module (N4691B)Description of the Test1. The PNA, with cable and 10 dB attenuator, is calibrated for use as a highlyaccurate, tuned power meter. This set is referred to as PNAasPowerMeter.2. The analyzer is Preset.3. The analyzer is set up for a CW reflection measurement on the test port tobe measured.4. The PNAasPowerMeter is connected to the test port.5. The analyzer frequency is set to the desired value.6. The PNAasPowerMeter is set to the same frequency.7. The output power is measured, and the value is compared to the Presetsetting.8. This process is repeated at hundreds of frequencies across the full range ofthe analyzer. The difference between the measured power and the outputsetting must be within the specified accuracy range at all points for the testto pass.1. Refer to Power Measurement Receiver System (PNAasPowerMeter).2. Refer to Get the Hardware Required for your GPIB Instruments.