Rohde & Schwarz FPL1000 Series, Руководство пользователя

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Remote Commands
R&S
®
FPL1000
758 User Manual 1178.3370.02 ─ 03
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 | 1 | 0
*RST:
0
Example: DEM:SQU ON
Signals below the level threshold are not sent to the audio out-
put.
8.8.8.15 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 8.8.7.6, "Programming
Example: Configuring a Spectrogram" , on page 706.
● Example: Basic Markers ....................................................................................... 758
● Example: Marker Search in Spectrograms ........................................................... 760
● Basic Frequency Sweep Measurement for Marker Function Examples ............... 761
● Example: Using a Fixed Reference Marker .......................................................... 761
● Example: Obtaining a Marker Peak List ................................................................761
● Example: Measuring Noise Density ...................................................................... 762
● Example: Measuring Phase Noise ........................................................................762
● Example: Measuring the Power in a Channel Using Band Power Markers .......... 763
● Example: Measuring Characteristic Bandwidths (Using the n dB Down Marker)
.............................................................................................................................. 764
● Examples: Demodulating Marker Values and Providing Audio Output .................765
● Example: Performing a Highly Accurate Frequency Measurement Using the Signal
Count Marker
........................................................................................................ 766
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 8.6.14, "Programming Example: Performing a Basic Frequency
Sweep" , on page 629 has been performed and thus does not begin by presetting the
instrument.
//--------------Configuring marker behavior ------------------
Setting Basic Spectrum RF Measurement Parameters