Analog Modulations
R&S
®
SMA100B
77User Manual 1178.3834.02 ─ 05
The signal is output at the Pulse Video connector.
To deactivate the signal output, set "Pulse Generator" > Pulse Output State > "Off".
Remote command:
[:SOURce<hw>]:PULM:STATe on page 532
Source
Selects between the internal "Pulse Generator" or an "External" pulse signal for the
modulation.
"Pulse Generator"
Selects the internal generator.
See Pulse Generator.
"External"
Modulation source is fed to the input connector.
See "Signal sources" on page 73.
Remote command:
[:SOURce<hw>]:PULM:SOURce on page 533
Transition Type
Selects between "Fast" or "Smoothed" slew rate (slope).
"Fast"
Enables fast transitions with shortest rise and fall times.
"Smoothed"
Flattens the slew rate, resulting in longer rise / fall times. Use this
mode if you are working with devices that are sensitive to steep
slopes.
Remote command:
[:SOURce<hw>]:PULM:TTYPe on page 533
Video Polarity
Sets the polarity of the internally generated pulse video (modulating) signal, related to
the RF (modulated) signal.
This signal synchronizes the pulse generator signal and the RF signal.
"Normal"
The video signal level follows the RF signal, that means it is high and
low simultaneously with the RF signal.
"Inverse"
Inverts the polarity between the video and the RF signal, that means
it is high, when RF is low, and vice versa.
Remote command:
[:SOURce<hw>]:PULM:OUTPut:VIDeo:POLarity on page 533
4.4.2 FM, PhiM and AM Modulation Settings
Option: R&S SMAB-K720
Modulation Settings
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