Signal Level Verification; Signal Level Problem With Input Frequencies < 3.6 Ghz - Keysight N9010B 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, and input 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.
66
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.
Keysight N9010B EXA Signal Analyzer Service Guide