FM:SOURce

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Syntax

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FM:SOURce {INTernal|EXTernal}
FM:SOURce?

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Description

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Select the source of the modulating signal. The generator will accept an internal or external modulation source. The default is INT.

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Explanation

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In internal modulation, use the F M:INTernal:FUNCtion command to select the modulating waveform and the F M:INTernal:FREQuency command to set the frequency of the modulating waveform.

In external modulation, use the signal input from the [Modulation In] connector at the rear panel.

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Return Value

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The query returns INT or EXT.

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Example

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Select external modulation source: FM:SOUR EXT

Return Value: EXT

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