Bird Technologies SH-36S-RM-Manual - Manual (Page 50)

Bird Technologies
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BW & Sweep Menu
The bandwidth menu includes functions that control sweep speed and
accuracy, and has the interface for customizing sweep triggers.
When two signals are separated by a freq distance equal to the Resolu-
tion BW, a 3 dB dip between them will appear on the screen. This is
the minimum resolvable frequency spacing. The menu selections leg-
end displays the current value.
Figure 21 Signal Representation
Lowering the RBW will lower the noise floor, which can make low-
power signals easier to see, and makes readings close to the noise floor
more accurate.
Figure 22 Example, BW & Sweep Menu
Actual Input RBW > Separation RBW = Separation
Separation 3 dB