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Instrument Function

R&S

SMB100A

201Operating Manual 1407.0806.32 ─ 21

Remote command:

[:SOURce]:LFOutput<ch>:FREQuency on page 349

LF Gen Shape

Selects the waveform shape of the LF signal.

Note: The installed hardware determines the available settings. Use the Hardware

Config dialog to check the hardware the instrument is equipped with.

For information on the required hardware revision, refer to the release notes.

Remote command:

[:SOURce]:LFOutput:SHAPe on page 357

AM Sensitivity

Displays the input sensitivity of the externally applied modulation signal at the MOD

EXT input in %/V in AM Type Linear mode, and dB/V in AM Type Exponential mode.

The modulation depth entered under AM Depth is achieved with 1 Volt modulation of

the input.

Remote command:

[:SOURce<hw>]:AM:SENSitivity? on page 327

AM External Coupling

Selects the coupling mode (AC or DC) for external feed.

Note: Coupling for external feed via input MOD EXT can be set independently for all

modulations using the external modulation signal.

"AC"

Disconnects the DC voltage component and uses only the AC com-

ponent of the modulation signal.

"DC"

Uses the modulation signal with both components, AC and DC.

Remote command:

[:SOURce<hw>]:AM:EXTernal:COUPling on page 326

Ext. Impedance

(Source "External" only)

Sets the impedance for the external modulation signal, applied at the MOD EXT con-

nector.

You can select 600 Ohm or high (>100 kOhm).

This setting affects all analog modulations which use the external modulation signal.

Remote command:

[:SOURce<hw>]:INPut:MODext:IMPedance on page 347

Modulation

R&S SMB100A User Manual

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