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RBW FILTER
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Visualization of an SCPC transponder with settings:
“RBW FILTER 5 MHz” and “dB DIV 5dB” (Span 50 MHz)
Touch “MENU&?” from the
SAT SPECTRUM screen,
select “dB DIV 2dB” and
“RBW FILTER 1 MHz”.
Visualization of a SAT SCPC
transponder (SPAN 10 MHz).
EXAMPLE 1:
EXAMPLE 2:
NOTE:
You can only select RBW filter in SAT mode.
The RBW (Resolution Bandwidth) filter function determines the bandwidth of the bandpass
filter, which is used to generate the spectrum of the input signal (IF).
This bandpass filter works like a window: the smaller the bandwidth, the more detailed is the
representation of the spectrum. However, a smaller value RBW provides a slower refresh rate
of the spectrum.
You can choose (high resolution, slower refresh rate) between the RBW filter between a
bandwidth of 1 MHz or 5 MHz (lower resolution, fast refresh rate).