Agilent Technologies N9320A Guida Utente Pagina 46

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38 N9320A Spectrum Analyzer
3 Functions and Measurements
5 Reduce the resolution bandwidth filter to view the smaller
signal. The smaller signal will be hidden by the larger signal
when the bandwidth settings are wider, as in Figure 7.
Reducing the RBW setting will allow less of the larger signal
to pass through the analyzer and the smaller signals peak
will then rise out of the noise floor. Place a delta marker on
the smaller signal:
Press > 1 > kHz
Press
Press
> Delta > Delta (On)
Press 50 > kHz
Figure 8 Resolved small signal from large signal
BW/
Avg
Peak
Search
Marker
NOTE
The 1 kHz filter shape factor of 15:1 has a bandwidth of 15 kHz at the
60 dB point. The half-bandwidth (7.5 kHz) is narrower than the
frequency separation of 50 kHz, so the input signals can be resolved.
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