GW Instek GSP-730 User Manual - Manual (Page 63)

BASIC OPERATION
61
Bandwidth
BW key sets the resolution bandwidth (RBW). The resolution
bandwidth and the sweep time are related. Please take into account
how the sweep time is effected by the resolution bandwidth.
Resolution Bandwidth Setting (RBW)
Description The RBW (Resolution Bandwidth) defines the
width of the IF (intermediate frequency) filter
that is used to separate signal peaks from one
another. The narrower the RBW, the greater the
capability to separate signals at close
frequencies. But it also makes the sweep time
longer under specific frequency spans (the
display is updated less frequently).
Operation 1. Press BW > RBW[F1] and set the RBW to
Auto or Man.
2. Set the resolution bandwidth and unit for Man
mode.
Mode:
Frequency Range: Auto, Man
1MHz, 300kHz, 100kHz
Note
The manual RBW is only available when the
span≤10MHz. If the span is greater than 10MHz
then the RBW is automatically set to Auto.