User`s guide

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

> Delta > Delta (On)

Press 50 > kHz

Figure 8 Resolved small signal from large signal

BW/

Avg

Peak

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.