Rohde & Schwarz FSVA - Page 690

Remote Control
R&S
®
FSVA/FSV
690Operating Manual 1176.7510.02 ─ 09
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:QFAC?
Queries the Q factor of the measured bandwidth.
Manual operation: See "n dB down" on page 292
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 sweeps.
Suffix:
<n>
.
Selects the measurement window.
<m> irrelevant
Parameters:
<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" on page 292
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:STATe <State>
This command turns the n dB Down marker function on and off.
Suffix:
<n>
.
Selects the measurement window.
<m> irrelevant
Remote Control – Commands