Rohde & Schwarz SMW200A - Page 886

Remote Control Commands
R&S
®
SMW200A
871User Manual 1175.6632.02 ─ 16
// 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
SOURce1:LFOutput1:FREQuency 20000
// Configure the amplitude modulation settings and switch AM on
SOURce1:AM1:SOURce LF1
SOURce1:AM1:DEPTh 30
SOURce1:AM:RATio 40
SOURce1:AM1:STATe 1
// Switch on LF and RF signal output
SOURce1:LFOutput1:STATe 1
OUTPut1:STATe 1
Example: Using an external signal source
Using an external signal source, you can additionally determine whether you want to
use only the AC component of the external modulation signal.
// Reset the instrument to start from a defined state
*RST
// Set frequency and amplitude
SOURce1:FREQuency:CW 6000000000
SOURce1:POWer:LEVel:IMMediate:AMPLitude -25
// Configure the amplitude modulation settings and switch AM on
SOURce1:AM1:SOURce EXT1
SOURce1:AM1:DEPTh 40
// Query the input sensitivity at the external modulation input
SOURCe1:AM1:SENSitivity?
// Response: 40
// Since the voltage value for full modulation is 1V,
// the resulting sensitivity is precisely 50%/V.
// This value is assigned to the voltage value for full
// modulation of the input.
// select the coupling mode AC for external amplitude modulation
SOURce1:INPut:MODext:COUPling1 AC
// Switch on AM and RF signal output
SOURce1:AM1:STATe 1
OUTPut1:STATe 1
SOURce Subsystem