Remote control commands
R&S
®
SMM100A
757
User Manual 1179.1341.02 ─ 05
[:SOURce<hw>]:FM:MODE
<Mode>
Selects the mode for the frequency modulation.
Parameters:
<Mode>
NORMal | LNOise
NORMal
The maximum range for modulation bandwidth and FM deviation
is available.
LNOise
Frequency modulation with phase noise and spurious character-
istics close to CW mode. The range for modulation bandwidth
and FM deviation is reduced (see data sheet).
*RST:
NORMal
Example:
See
Example "Creating a frequency modulated RF signal"
Manual operation:
See
[: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"
Usage:
Query only
13.16.3.4
SOURce:PM subsystem
Option: R&S
SMM-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 13.16.10, "SOURce:LFOutput subsystem"
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 subsystem