Rohde & Schwarz FSV3000, User Manual

Page: 549 / 1489

Common analysis and display functions
R&S
®
FSVA3000/ R&S
®
FSV3000
549 User Manual 1178.8520.02 ─ 08
Squelch ....................................................................................................................... 549
Squelch Level ..............................................................................................................550
Loudspeaker ............................................................................................................... 550
Marker Demodulation State
Activates or deactivates the demodulation output.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:DEModulation[:STATe]
on page 1220
Continuous Demodulation
If activated, the signal is demodulated continuously and sent to the audio output,
instead of stopping the sweep at the marker frequency of marker 1 and demodulating
there for the configured marker stop time. This allows you to monitor the frequency
range acoustically (assuming the sweep time is long enough).
For zero span measurements, demodulation is always active continuously.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:DEModulation:CONTinuous
on page 1219
Marker Stop Time
Defines how long the sweep is stopped at the marker position to output the demodula-
ted signal.
For zero span measurements, demodulation is always active continuously, regardless
of the marker stop time.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:DEModulation:HOLDoff
on page 1219
Modulation
Defines the demodulation mode for output. The default setting is AM.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:DEModulation:SELect
on page 1220
Squelch
Activates or deactivates the squelch function. If activated, the audible AF is cut off
below a defined threshold level. Thus, you avoid hearing noise at the audio output
when no signal is available.
The squelch function activates the video trigger function (see "Video" on page 487) and
deactivates any other trigger or gating settings. The squelch level and trigger level are
set to the same value. The trigger source in the channel bar is indicated as "SQL" for
squelch. The squelch level is indicated by a red line in the diagram.
The trigger source in the channel bar is indicated as "SQL" for squelch. The squelch
level is indicated by a red line in the diagram.
Remote command:
[SENSe:]DEMod:SQUelch[:STATe]
on page 1221
Marker usage