To output rf modulated signal, To output rf modulated signal -3 – RIGOL DSG3000 Series User Manual

Page 155

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Chapter 3 Application Examples

RIGOL

DSG3000 Programming Guide

3-3

To Output RF Modulated Signal

Requirement

Use the SCPI commands to realize the following functions:

Output an AM modulated signal. Set the carrier frequency to 800 MHz, the carrier amplitude to -20 dBm,

the AM modulation depth to 60% and the modulation frequency to 20 kHz.

Method

1.

*IDN?

/*Query the ID string of the RF signal generator to check

whether the remote communication is normal*/

2.

:SYST:PRES:TYPE FAC

/*Set the preset type to "Factory"*/

3.

:SYST:PRES

/*Restore the instrument to the factory setting (by default,

the modulation source is internal and the modulation

waveform is sine)*/

4.

:FREQ 800MHz

/*Set the RF carrier frequency to 800 MHz*/

5.

:LEV -20

/*Set the RF carrier amplitude to -20 dBm*/

6.

:AM:DEPT 60

/*Set the AM modulation depth is 60%*/

7.

:AM:FREQ 20kHz

/*Set the AM modulation frequency to 20 kHz*/

8.

:AM:STAT ON

/*Enable the AM function*/

9.

:MOD:STAT ON

/*Enable the RF modulation output*/

10. :OUTP ON

/*Enable the RF output*/


Note: The RF and MOD switches must be turned on.

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