Signal generator settings
R&S
®
SGS100A
134User Manual 1173.9105.02 ─ 13
Remote command:
[:SOURce]:IQ:WBSTate on page 272
Crest Factor
Sets the crest factor of the I/Q modulation signal.
The crest factor gives the difference in level between the peak envelope power (PEP)
and average power value (RMS) in dB. This value is necessary for the generation of
the correct output power at the RF output, i.e. the instrument uses the crest factor
value to compensate the average power.
In vector modulation mode, the output level setting is correlated to the nominal full-
scale voltage at the I/Q input. If the baseband signal exhibits no constant envelope, the
instrument internal level setting can be corrected by use of the crest factor value.
Remote command:
[:SOURce]:IQ:CREStfactor on page 271
9.8.3 Analog impairment settings
Access:
► Select "SGMA-GUI > Instrument Name > I/Q Settings > Analog Impairments".
Comprises the settings like I/Q offset and quadrature offset.
State
Activates/deactivates I/Q impairments.
If activated, the settings for offset, gain imbalance and quadrature offset become effec-
tive.
It is indicated in the function block, if the I/Q impairment is activated.
Remote command:
[:SOURce]:IQ:IMPairment[:STATe] on page 271
I/Q modulation and signal impairment
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