Ronde & Schwarz 1304.0004.03, Руководство пользователя

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Remote Commands
R&S
®
FPL1000
889 User Manual 1178.3370.02 ─ 09
[SENSe:]DEMod:SQUelch[:STATe] <State>
This command turns selective demodulation at the marker position on and off.
For selective demodulation, the R&S FPL1000 turns on a video trigger whose level
correponds to the squelch level. Therefore it turns other triggers or gates off.
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
Example: DEM:SQU ON
Signals below the level threshold are not sent to the audio out-
put.
11.8.8.15 Programming Examples for Using Markers and Marker Functions
Various programming examples on how to use markers and the special marker func-
tions are provided here.
The use of spectrogram markers is demonstrated in Chapter 11.8.7.7, "Programming
Example: Configuring a Spectrogram" , on page 837.
● Example: Basic Markers ....................................................................................... 889
● Example: Marker Search in Spectrograms ........................................................... 891
● Basic Frequency Sweep Measurement for Marker Function Examples ............... 892
● Example: Using a Fixed Reference Marker .......................................................... 892
● Example: Obtaining a Marker Peak List ................................................................892
● Example: Measuring Noise Density ...................................................................... 893
● Example: Measuring Phase Noise ........................................................................893
● Example: Measuring the Power in a Channel Using Band Power Markers .......... 894
● Example: Measuring Characteristic Bandwidths (Using the n dB Down Marker)
.............................................................................................................................. 895
● Examples: Demodulating Marker Values and Providing Audio Output ................. 896
● Example: Performing a Highly Accurate Frequency Measurement Using the Signal
Count Marker
........................................................................................................ 897
Example: Basic Markers
This example demonstrates how to configure and define markers for a basic spectrum
measurement in a remote environment. It assumes that the basic frequency sweep
described in
Chapter 11.6.17, "Programming Example: Performing a Basic Frequency
Sweep" , on page 747 has been performed and thus does not begin by presetting the
instrument.
//--------------Configuring marker behavior ------------------
DISP:MTAB ON
Setting Basic Spectrum RF Measurement Parameters