User`s guide
40 N9320A Spectrum Analyzer
3 Functions and Measurements
Press   
Press 
 > Mkr -> CF
5 Reduce the span to 500 kHz, if necessary re- center the peak:
Press   > 500 > kHz
6 Set the attenuation to 20 dB:
Press   > Attenuation > 20 > dB
Figure 10 A signal closer to the noise level
Note that increasing the attenuation moves the noise floor 
closer to the signal level. 
7 To view the signal more clearly, set the attenuation to 0 dB:
Press   > Attenuation > 0 > dB
Figure 11 Measuring a low-level signal using 0 dB Attenuation
Peak
Search
Marker
SPAN
Amplitude
Amplitude










