Rohde & Schwarz FPL1000 Series, User Manual

Page: 452 / 899

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
452 User Manual 1178.3370.02 ─ 03
Optionally, a minimum level ( "Squelch Level" ) can be defined so that the signal is only
demodulated when it exceeds the set level. This is useful during continuous demodula-
tion to avoid listening to noise.
Marker Demodulation State ....................................................................................... 452
Continuous Demodulation ..........................................................................................452
Marker Stop Time .......................................................................................................452
Modulation ..................................................................................................................453
Loudspeaker ............................................................................................................... 453
Audio Output Volume .................................................................................................. 453
Marker Demodulation State
Activates or deactivates the demodulation output.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:DEModulation[:STATe]
on page 757
Continuous Demodulation
If activated, the signal is demodulated continuously (not only at the marker position)
and sent to the audio output. This allows you to monitor the frequency range acousti-
cally (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 756
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.
Marker Usage