Ronde & Schwarz 1304.0004K03, Руководство пользователя

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Remote Commands
R&S
®
FPL1000
882 User Manual 1178.3370.02 ─ 11
Example: DEM:SQU:LEV 80
Sets the squelch level to 80% of the displayed signal.
[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.
10.8.8.15 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 10.8.7.7, "Programming
Example: Configuring a Spectrogram" , on page 828.
● Example: Basic Markers ....................................................................................... 882
● Example: Marker Search in Spectrograms ........................................................... 884
● Basic Frequency Sweep Measurement for Marker Function Examples ............... 885
● Example: Using a Fixed Reference Marker .......................................................... 885
● Example: Obtaining a Marker Peak List ................................................................886
● Example: Measuring Noise Density ...................................................................... 886
● Example: Measuring Phase Noise ........................................................................887
● Example: Measuring the Power in a Channel Using Band Power Markers .......... 887
● Example: Measuring Characteristic Bandwidths (Using the n dB Down Marker)
.............................................................................................................................. 888
● Examples: Demodulating Marker Values and Providing Audio Output ................. 889
● Example: Performing a Highly Accurate Frequency Measurement Using the Signal
Count Marker
........................................................................................................ 890
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 10.6.17, "Programming Example: Performing a Basic Frequency
Sweep" , on page 736 has been performed and thus does not begin by presetting the
instrument.
Setting Basic Spectrum RF Measurement Parameters