July 2018
3-45
3.8
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.
3.8.1
Resolution Bandwidth Setting (RBW)
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).
Press
X
RBW
and set the RBW to Auto or Man.
Set the resolution bandwidth and unit for Man mode.
Mode
: Auto,
Man.
Frequency Range
: 1 MHz, 300 kHz, 100 kHz.
NOTE
:
The manual RBW is only available when the span
≤
10 MHz. If the span
is greater than 10 MHz then the RBW is automatically set to Auto.