Remote Control Commands
R&S
®
SMA100B
377
User Manual 1178.3834.02 ─ 03
12.15.1.5
SOURce:PULM Subsystem
Option: see
Chapter 4.1, "Required Options"
The
PULM
subsystem contains the commands for setting the pulse modulation.
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Pulse Modulation Settings
With the commands described in this section, you can configure the settings for pulse
modulation, select the trigger mode and determine delay times for the pulse modula-
tion signal.
Example: Perform pulse modulation
The example shows a command sequence to perform pulse 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 pulse modulation settings
// Select the internal modulation generator,
// set trigger mode, select pulse mode, transition type
// and select the polarity of the internally generated pulse video output
SOURce:PULM:SOURce INT
SOURce:PULM:TRIGger:MODE AUTO
SOURce:PULM:MODE DOUB
SOURce:PULM:TTYPe SMO
SOURce:PULM:OUTPut:VIDeo:POLarity INVerted
// Alternatively configure the pulse modulation settings for
// external modulation source
// Select the source, set the polarity of the external signal,
// select the impedance for the external pulse modulation input/
// for the external pulse modulation trigger input
SOURce:PULM:SOURce EXT
SOURce:PULM:POLarity NORMal
SOURce:PULM:IMPedance G1K
// Configure the pulse generator settings
// Set pulse period, width, and delay
SOURce:PULM:PERiod 10 us
SOURce:PULM:WIDth 8 us
SOURce:PULM:DOUBle:WIDTh 0.0000012
SOURce:PULM:DOUBle:DELay 0.0000045
SOURce Subsystem