Instrument Function
R&S
®
SMB100A
208Operating Manual 1407.0806.32 ─ 21
Remote command:
[:SOURce<hw>]:PM[:DEViation] on page 373
[:SOURce<hw>]:PM:INTernal:DEViation on page 374
[:SOURce<hw>]:PM:EXTernal:DEViation on page 374
LF Gen Freq
Sets the frequency of the LF generator.
This setting affects all analog modulations which use the LF generator as the internal
modulation source.
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
ɸM Sensitivity
Displays the input sensitivity of the externally applied modulation signal at the MOD
EXT input in RAD/V.
The modulation deviation entered with ɸM Deviation"ɸM Deviation" is achieved with 1
Volt (=U
peak
) of the input signal.
Note: The input voltage must not exceed 1.1 V
p
otherwise modulation distortions
occur.
Remote command:
[:SOURce<hw>]:PM:SENSitivity? on page 375
PhiM Ext Coupling
Selects the coupling mode ("AC" or "DC") for the external modulation signal.
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>]:PM:EXTernal:COUPling on page 373
Modulation
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