GW Instek GSP-830 User Manual - Manual (Page 96)

GSP-830 User Manual
96
Select RBW (Resolution BandWidth)
Background 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 span (the display is updated
less frequently). See page99 for suitable RBW selection.
Panel operation 1. Press the BW key.
BW
2. Press F1 (RBW) to select Auto
or Manual.
RBW
Auto Man
F 1
3. When Man (manual) is selected,
use the Arrow keys or Scroll
knob to select the RBW. The
selected RBW appears in the
command window.
RBW: 30kHz
Mode Auto RBW is automatically selected. See
page99 for the setting.
Manual RBW is manually selected. The BW icon
appears at the bottom of the display.
Range See page99 for RBW reference setting according to the
frequency span.
RBW Recommended span Standard/ Optional
300Hz Span<30kHz Optional (300Hz
RBW)
3kHz Span<300kHz Standard
9kHz 300kHz≤Span<600kHz Optional (EMI
Filter - page146)
10kHz 300kHz≤Span<1MHz Optional (10k/
100kHz RBW)
30kHz 300kHz≤Span<6MHz Standard