Bird Technologies SH-362S-Manual - Manual (Page 83)

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BW & Sweep Menu
The bandwidth menu includes functions that control sweep speed and accuracy.
It can also customize sweep triggers.
When two signals are separated by a freq distance equal to the Resolution BW
(RBW), a 3 dB dip between them will appear on the screen. This is the minimum
resolvable frequency spacing. The soft key legend displays the current value.
Figure 47 Signal Representation
Lowering the RBW will lower the noise floor, which can make low-power signals
easier to see and make readings close to the noise floor more accurate.
Figure 48 Example, BW & Sweep Menu
Press the Resolution BW soft key then use the arrow keys or the thumbwheel to
enter the desired bandwidth.
Actual Input RBW > Separation RBW = Separation
Separation 3 dB