Rohde & Schwarz SMA100B - Source:fm Subsystem

Remote Control Commands
R&S
®
SMA100B
519User Manual 1178.3834.02 ─ 05
[:SOURce<hw>]:AM<ch>:SENSitivity[:LINear] <Sensitivity>
For [:SOURce<hw>]:AM:TYPE LIN, sets the sensitivity of the external signal source
for amplitude modulation.
Parameters:
<Sensitivity> float
Range: 0 to 100
Increment: 0.1
*RST: 30
Example: See Example "Using an external signal source" on page 514.
Manual operation: See "Sensitivity" on page 83
[:SOURce<hw>]:AM:TYPE
<AmType>
Selects the type of amplitude modulation.
For [:SOURce<hw>]:AM:MODE SCAN, only EXPonential is available.
For active external exponential AM, automatically sets [:SOURce<hw>]:INPut:
MODext:COUPling<ch>DC.
Parameters:
<AmType> LINear | EXPonential
*RST: LINear
Example: See Example "Using an external signal source" on page 514.
Options: R&S SMAB-K721
Manual operation: See "Type" on page 83
13.16.1.3 SOURce:FM Subsystem
Option: R&S SMAB-K720
The FM subsystem contains the commands for setting the frequency modulation.
Example: Creating a frequency modulated RF signal
Using the internal LF generator, the following command sequence configures a fre-
quency modulated signal.
// Reset the instrument to start from a defined state
*RST
// Set RF frequency and amplitude
SOURce1:FREQuency:CW 6000000000
SOURce1:POWer:LEVel:IMMediate:AMPLitude -25
// Configure the modulation signal
SOURce1:LFOutput1:SHAPe SINE
SOURce Subsystem