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Decreasing the Resolution Bandwidth
Resolution bandwidth settings affect the level of
internal noise without affecting the level of
continuous wave (CW) signals. Decreasing the RBW
by a decade reduces the noise floor by 10 dB.
1 Refer to
page 49, and follow steps 1, 2 and 3.
2 Decrease the resolution bandwidth:
•
The low level signal appears more clearly because
the noise level is reduced.
Figure 7
N9340A User's Guide
"Reducing Input Attenuation"
Press [BW/SWP] > {RBW}, and toggle RBW
setting to Man (manual), then decrease the
resolution bandwidth using the knob, the
arrow keys or the numeric keypad.
Decreasing Resolution Bandwidth
Making Measurements
4
on
51
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