HP 8590 E-Series, Руководство по калибровке

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56. Non-Harmonic Spurious Outputs , HP 8591EM Option 010
18. If the marked signal is either the fundamental or a harmonic of the
fundamental (see step 16) or a noise peak (see step 17), move the marker to
the next highest signal by pressing SHIFT , PEAK SEARCH. Repeat step 16.
The following step is only performed if the marker signal is not the
fundamental or harmonic of the fundamental and is a true response .
19. Calculate the dierence between the amplitude of marked signal and the
Fundamental Amplitude as listed in T able 2-72 .
F or example , if the Fundamental Amplitude for a fundamental frequency of
10 MHz is +1.2 dBm and the marker amplitude is 040.8 dBm, the dierence
is 042 dBc .
Record this dierence as the Non-Harmonic Response Amplitude for the
appropriate EMC analyzer center frequency and microwave spectrum
analyzer start and stop frequency settings in T able 2-73 .
Non-Harmonic Amplitude = Marker Amplitude 0 Fundamental
Amplitude
20. If a true non-harmonic spurious response is not found, record \NOISE" as
the Non-Harmonic Response Amplitude in T able 2-73 for the appropriate
EMC analyzer center frequency and microwave spectrum analyzer start and
stop frequency settings .
21. Repeat steps 15 through 20 for the remaining microwave spectrum analyzer
settings for start frequency , stop frequency , and resolution bandwidth; and
for the EMC analyzer center frequency setting of 10 MHz.
22. Repeat steps 14 through 21 with the EMC analyzer center frequency set to
900 MHz.
23. Repeat steps 14 through 21 with the EMC analyzer center frequency set to
1.8 GHz.
24. Locate in T able 2-73 the most-positive Non-Harmonic Response Amplitude .
Record this amplitude as the Highest Non-Harmonic Response Amplitude in
TR Entry 1 of the performance verication test record.
2-358 P erformance V erication T ests