Signal Level Verification; Signal Level Problem With Input Frequencies < 3.6 Ghz - Keysight Technologies X Series Service Manual

Boot Up and Initialization Troubleshooting

Signal Level Verification

Signal Level Verification

Signal Level Problem with
Input Frequencies < 3.6 GHz
Measure the 50 MHz RF calibrator signal level by pressing Input/Output, RF
Calibrator, 50 MHz. Now press Freq, 50 MHz, SPAN, 1 MHz, Peak Search. If
the analyzer is functioning correctly in low band, the 50 MHz calibrator level
should be −25 dBm ± 2 dB. See the figure below.
Is the signal level correct?
If yes:
If no:
It is possible that other input frequencies < 3.6 GHz could have an amplitude problem even
though the 50 MHz calibrator is within tolerance. Using the internal RF calibrator provides a
quick check of the low band path.
Keysight N9010A EXA Service Guide
The analyzer low band path is functioning properly at least at 50 MHz.
Refer to Chapter 4, "RF Section Troubleshooting (RF/Microwave
Analyzers)" in this manual.
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