This topic offers troubleshooting for the IF frequency response UWBIF performance tests and adjustments:
The IF frequency response UWBIF test is performed with classic power sensor/splitter techniques. Mismatch error (though present) is minimized by using good connector care practices. If the test fails check connections and test cables for tightness and/or wear.
IF Frequency Response UWBIF adjustment is only run on Option B2X (255 MHZ IF Bandwidth) or Option B5X (510 MHz IF Bandwidth). Microwave models (frequency options 508, 513, or 526) use the Classic Technique. Millimeter Models (frequency options 544 or 550) use the PNA-X Technique.
The classic technique is performed with power sensor/splitter techniques. Mismatch error (though present) is minimized by using good connector care practices. If the test fails check connections and test cables for tightness and/or wear.
If there are connectivity problems with the power meter when running the adjustments or utilities that use the network analyzer, ensure the power meter is correctly connected to the PNA-X. Please refer to the power sensor calibration section in the Network Analyzer Freq Sweep Calibration topic.
If the connections have been thoroughly checked and are correct, then there may be a problem with the network analyzer. A system recovery of the network analyzer may be necessary. Please contact network analyzer support for more information and procedures.
Note that the firmware version may change and information will be lost after doing the recovery.