R&S ESCI Analyzer - Bandwidths and Sweep Time
1166.6004.12 4.85 E-1
RBW / VBW
PULSE [.1]
The RBW/VBW PULSE [.1] softkey sets the following coupling
ratio:
video bandwidth = 10 x resolution bandwidth or
video bandwidth = 10 MHz (= max. VBW).
This coupling ratio is recommended whenever the amplitudes of
pulsed signals are to be measured correctly. The IF filter is
exclusively responsible for pulse shaping. No additional
evaluation is performed by the video filter.
IEC/IEEE-bus command BAND:VID:RAT 10
This setting is only effective for the VBW AUTO selection in the
main menu.
RBW / VBW
NOISE [10]
The RBW/VBW NOISE [10] softkey sets the following coupling
ratio:
video bandwidth = resolution bandwidth/10
At this coupling ratio, noise and pulsed signals are suppressed
in the video domain. For noise signals, the average value is
displayed.
IEC/IEEE-bus command BAND:VID:RAT 0.1
This setting is only effective for the VBW AUTO selection in the
main menu.
RBW / VBW
MANUAL
The RBW/VBW MANUAL softkey activates the manual input of
the coupling ratio.
The resolution bandwidth/video bandwidth ratio can be set in the
range 0.001 to 1000.
IEC/IEEE-bus command BAND:VID:RAT 10
This setting is only effective for the VBW AUTO selection in the
main menu.
SPAN /RBW
AUTO [50]
The SPAN/RBW AUTO [50] softkey sets the following coupling
ratio:
resolution bandwidth = span/50
This coupling ratio is the default setting of the R&S ESCI
IEC/IEEE-bus command BAND:RAT 0.02
This setting is only effective for the RBW AUTO selection in the
main menu.
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