Rohde & Schwarz R&S SMB100B - Page 418

Remote control commands
R&S
®
SMB100B
418User Manual 1178.3711.02 ─ 08
// Set RF frequency and amplitude
SOURce1:FREQuency:CW 6000000000
SOURce1:POWer:LEVel:IMMediate:AMPLitude -25
// Configure the modulation signal
SOURce1:LFOutput1:SHAPe SINE
SOURce1:LFOutput1:FREQuency 20000
// Configure the frequency modulation settings and switch FM on
SOURce1:FM1:SOURce LF1
SOURce1:FM1:DEViation 1000
SOURce1:FM:RATio 40
SOURce1:FM:MODe LNOise
SOURce1:FM1:STATe 1
// Switch on LF and RF signal output
SOURce1:LFOutput1:STATe 1
OUTPut1:STATe 1
Example: Using combined LF signals
Using the internal LF generators of both paths, the following command sequences con-
figure a frequency modulated signal with determined deviations.
// Configure the FM modulation settings with combined LF signal sources
SOURce1:FM1:SOURce LF1
SOURce1:FM1:DEViation 1000
// Select the modulation signal source for the second path
SOURce1:FM2:SOURce LF2
// Combine the signals of both paths with fixed total deviation depth
SOURce1:FM1:DEViation:MODe TOT
SOURce1:FM1:DEViation:SUM 5000
// Query the deviation depth of modulation signal in the second path
SOURce1:FM2:DEViation?
// Response: 4000
// Combine the signals of both paths with fixed ratio
SOURce1:FM1:DEViation:MODe RAT
SOURce1:FM1:RATio 100
SOURce1:FM2:DEVIation 10000
// Query the deviation depth of modulation signal in the first path
SOURce1:AM1:DEViation?
// Response: 1000
SOURce1:FM1:STATe 1
SOURce1:FM2:STATe 1
SOURce subsystem