Key Reference
BW/Avg
96
BW/Avg
Hardkey activates the resolution bandwidth function and
accesses the softkey menus that control the bandwidth and
averaging functions.
Res BW
Auto Man
Softkey controls the 3 dB resolution bandwidth of the
analyzer from 10 Hz to 3 MHz using the knob or arrow keys.
There are four available bandwidths less than 1 KHz are 10,
30, 100 Hz or 300 Hz. If an invalid bandwidth is entered
using the numeric keypad, the analyzer chooses the closest
acceptable bandwidth. As the resolution bandwidth is
decreased, the sweep time is modified in order to maintain
amplitude accuracy. Resolution bandwidth is also
coordinated with the frequency span. As the span is
decreased, the resolution bandwidth decreases. When the
VBW/RBW is set to AUTO, if the resolution bandwidth
changes, the video bandwidth changes to maintain the
VBW/RBW ratio.
A “#” mark appears next to “Res BW” on the display when it
is not coupled. To recouple the resolution bandwidth, press
Res BW (Auto).
Key access:
Video BW
Auto Man
Softkey changes the analyzer post- detection filter from 1 Hz
to 3 MHz using the knob or arrow keys. If an invalid
bandwidth is entered, the analyzer chooses the closest
available bandwidth. As the video bandwidth decreases, the
sweep time will increase to maintain amplitude accuracy.
A “#” mark appears next to “VBW” on the bottom of the
analyzer display when it is not coupled. To couple the video
bandwidth, press Video BW (Auto).
Key access:
BW/
Avg
BW/
Avg
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