Remote Control Commands
R&S
®
SMA100B
524User Manual 1178.3834.02 ─ 05
*RST: HBANdwidth
Example: See Example "Creating a frequency modulated RF signal"
on page 519.
Manual operation: See "Mode" on page 80
[:SOURce<hw>]:FM:SENSitivity?
Queries the sensitivity of the externally supplied signal for frequency modulation. The
sensitivity depends on the set modulation deviation.
Return values:
<Sensitivity> float
Sensitivity in Hz/V.
It is assigned to the voltage value for full modulation of the input.
Range: 0 to max
Increment: 0.01
Example: See Example "Using an external signal source" on page 520.
Usage: Query only
13.16.1.4 SOURce:PM Subsystem
Option: R&S SMAB-K720
The PM subsystem contains the commands for setting the phase modulation. You can
configure the internal modulation source (LF generator) with the commands listed in
Chapter 13.16.6, "SOURce:LFOutput Subsystem", on page 599 .
Example: Performing phase modulation
The following example shows a command sequence to perform phase modulation.
// Reset the instrument to start from an initial state
*RST; *CLS
// Set the RF signal frequency and level
SOURce:FREQuency:CW 4000000000
SOURce:POWer:LEVel:IMMediate:AMPLitude -25
// Configure the phase modulation settings
SOURce1:LFOutput1:SHAPe SINE
SOURce1:LFOutput1:FREQuency 1000
// Select the LF signal generated by the internal modulation generator
// or the internally generated noise signal
SOURce1:PM1:DEViation 1
SOURce1:PM1:SOURce LF1
// SOURce1:PM1:SOURce INTernal
// SOURce1:PM1:SOURce NOISe
SOURce Subsystem
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