Remote Control Commands
R&S
®
SMU200A
602Operating Manual 1007.9845.32 ─ 15
[:SOURce<hw>]:BB:ARB:MCARrier:CLIPping:CUToff <Cutoff>
Sets the cut off frequency of the final lowpass filter, if baseband clipping is enabled
(BB:ARB:MCAR:CLIP:STAT ON).
When the cut off frequency is set as half of the output sample rate, a final lowpass filter
improves the spectrum of the clipped multicarrier signal, but may also increase the result-
ing crest factor.
Parameters:
float
0 to max
1
50 MHz
MHz
<Cutoff>
Range:
Increment:
*RST:
Default unit:
BB:ARB:MCAR:CLIP:STAT ON
enables clipping
BB:ARB:MCAR:CLIP:CUT 50 MHz
sets the cut off frequency of the filter.
Example:
[:SOURce<hw>]:BB:ARB:MCARrier:CLIPping[:STATe] <State>
Switches baseband clipping on and off.
Clipping reduces the peak power of the resulting multi carrier signal according to the value
set with the command BB:ARB:MCAR:CLIP:CFAC.
The resulting clipped peak power is defined by sum of the the RMS level of the unclipped
multi carrier signal and the input parameter Target Crest Factor. Note that clipping
reduces also the RMS level. Hence the resulting crest factor of the clipped signal is slightly
above the Target Crest Factor. In order to get the unclipped parts of the clipped multi-
carrier signal matched with the unclipped multicarrier signal, the RF output power should
be reduced by the difference between resulting crest factor and Target Crest Factor.
Parameters:
0|1|OFF|ON
OFF
<State>
*RST:
BB:ARB:MCAR:CLIP:STAT ON
enables clipping
BB:ARB:MCAR:CLIP:CFAC 37 dB
sets the target crest factor.
Example:
SOURce Subsystem
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