R&S SMB100A Operating Manual page 219

®
R&S SMB100A
FM Deviation
Sets the modulation deviation in Hz.
The maximum deviation depends on the RF frequency and the modulation mode (see
data sheet).
Note that you can set a deviation that is too high for a specific RF frequency, or set an
RF frequency outside of the adjustable range of the deviation. In both cases, the instru-
ment sets the maximum deviation and displays an error message.
In "Int + Ext" modulation source mode, the instrument devides the deviation into half for
each source.
Remote command:
[:SOURce<hw>]:FM[:DEViation]
[:SOURce<hw>]:FM:INTernal:DEViation
[:SOURce<hw>]:FM:EXTernal:DEViation
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
LF Gen Shape
Selects the waveform shape of the LF signal.
Note: The installed hardware determines the available settings. Use the
Config
For information on the required hardware revision, refer to the release notes.
Remote command:
[:SOURce]:LFOutput:SHAPe
FM Sensitivity
Displays the input sensitivity of the externally applied modulation signal at the MOD
EXT input in Hz/V.
The modulation deviation entered with
the input signal.
Note: The input voltage must not exceed 1.1 V
occur.
Remote command:
[:SOURce<hw>]:FM:SENSitivity?
Operating Manual 1407.0806.32 ─ 21
dialog to check the hardware the instrument is equipped with.
on page 337
on page 338
on page 338
on page 349
on page 357
FM Deviation is achieved with 1 Volt (= U
otherwise modulation distortions
p
on page 339
Instrument Function
Modulation
Hardware
) of
peak
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