Verifying The 1St L.o. Output Power - Keysight n9020a Service Manual

L.O. Synthesizer/Reference Troubleshooting
A14 L.O. Synthesizer Troubleshooting

Verifying the 1st L.O. Output Power:

— Turn on the analyzer and wait for the instrument to complete the boot up
process.
— If the analyzer has Option 503, press FREQ, 600 MHz, Span, Zero Span.
If the analyzer does not have Option 503 press FREQ, 4.2 GHz, SPAN, Zero
Span.
— Refer to Figure
— Connect A14J740 1st LO output to the RF input of the functioning spectrum
analyzer using a cable that will function up to 10 GHz.
— Press Frequency, 4.5225 GHz (if the analyzer does not have Option 503) or
Frequency 5.7225 GHz (if the analyzer has Option 503), Span, 5 MHz, Peak
Search on the functioning spectrum analyzer. If the functioning spectrum
analyzer has a preselector peak or preselector centering function, perform
that operation to guarantee the preselector is optimized for the
measurement.
— The analyzer marker should read 4.5225 GHz or 5.7225 GHz at +16.55 dBm
± 3 dB as shown in
7-1, disconnect A14W4 cable at A14J740.
Figure 7-5.
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