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100

101

Command Reference

Frequency Modulation Subsystem ([:SOURce])

Chapter 4 249

:FM[1]|2:INTernal[1]|2:FREQuency

Supported PSG-A Series

[:SOURce]:FM[1]|2:INTernal[1]|2:FREQuency <val><unit>|UP|DOWN

[:SOURce]:FM[1]|2:INTernal[1]|2:FREQuency?

This command sets the internal frequency modulation rate for the following

applications:

• the first tone of a dual-sine waveform

• the start frequency for a swept-sine waveform

• the frequency rate for all other waveforms

*RST +4.00000000E+002

Remarks Refer to “:FM:INTernal:FREQuency:STEP[:INCRement]” on page 245

for setting the value associated with the UP and DOWN choices.

Refer to “:FM[1]|2:INTernal[1]|2:FUNCtion:SHAPe” on page 250 for

the waveform selection.

:FM[1]|2:INTernal[1]|2:FUNCtion:NOISe

Supported PSG-A Series

[:SOURce]:FM[1]|2:INTernal[1]|2:FUNCtion:NOISe GAUSsian|UNIForm

[:SOURce]:FM[1]|2:INTernal[1]|2:FUNCtion:NOISe?

This command sets the noise type when NOISe is the waveform choice.

*RST UNIF

Remarks Refer to “:FM[1]|2:INTernal[1]|2:FUNCtion:SHAPe” on page 250 for

the waveform selection.

Range Dual-Sine & Sine: 0.5HZ–1MHZ Swept-Sine: 1HZ–1MHZ

All Other Waveforms: 0.5HZ–100kHZ

Choices <val><unit> UP DOWN

Key Entry

FM Tone 1 Rate FM Start Rate FM Rate

Choices GAUSsian UNIForm

Key Entry

Gaussian

Uniform

1 2 ... 258 259 260 261 262 263 264 265 266 267 268 ... 361 362

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