Rohde & Schwarz FSV3000, User Manual

Page: 1215 / 1489

Remote commands
R&S
®
FSVA3000/ R&S
®
FSV3000
1215 User Manual 1178.8520.02 ─ 08
Usage: Query only
Manual operation: See "n dB down Value" on page 543
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:QFACtor?
This command queries the Q factor of n dB down measurements.
Suffix:
<n>
.
irrelevant
<m> irrelevant
Return values:
<QFactor>
Usage: Query only
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:RESult?
This command queries the distance of the n dB down markers from each other.
To get a valid result, you have to perform a complete measurement with synchroniza-
tion to the end of the measurement before reading out the result. This is only possible
for single sweep mode.
See also
INITiate<n>:CONTinuous
on page 860.
Suffix:
<n>
.
irrelevant
<m> irrelevant
Return values:
<Distance> The result depends on the span.
In case of frequency domain measurements, the command
returns the bandwidth between the two n dB down markers in
Hz.
In case of time domain measurements, the command returns the
pulse width between the two n dB down markers in seconds.
Example: INIT:CONT OFF
Switches to single sweep mode.
CALC:MARK:FUNC:NDBD ON
Switches on the n dB down function.
INIT;*WAI
Starts a sweep and waits for the end.
CALC:MARK:FUNC:NDBD:RES?
Outputs the measured value.
Usage: Query only
Manual operation: See "n dB down Marker State" on page 543
Analyzing measurements (basics)