R&S SGT100A User Manual page 204

®
R&S SGT100A
The detroughing factor is calculated as follows:
d = V
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:DETRoughing:
COUPling
Detroughing Factor (d)
Sets a start offset to limit the supply voltage V
The detroughing factor also controls the shaping. A "Detroughing Factor = 0" defines a
linear function.
See also
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:DETRoughing:
FACTor
Exponent (a)
Sets the exponent (a) for the third detroughing function, see
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:DETRoughing:
PEXPonent
Pre-Gain
In "Envelope Voltage Adaptation
applied to define the operating range of the power amplifier. The pre-gain can be used
to define and test only a specific (required) part of the operating range.
In "Envelope Voltage Adaptation > Auto" mode, the value is calculated automatically as
following:
"Pre-Gain" =
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:GAIN:PRE
on page 443
Post-Gain
In "Envelope Voltage Adaptation
attenuation introduced by the pre-gain and the gain of the shaping function.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:GAIN:POST
on page 443
Polynomial Coefficients
Accesses a dialog to describe the envelope shape as a polynomials function, see
Chapter 7.5.7, "Polynomial Coefficients
Shaping Table
Accesses the standard "Envelope Select" dialog with functions to define a new shaping
table file, select or edit an existing one.
User Manual 1176.8674.02 ─ 07
Min/V Max
cc cc
on page 446
"Couple Detroughing Factor with Vcc"
on page 446
on page 447
"Pin max" - "RF Level" + Crest Factor
Generation of Envelope Tracking Signals
in the low-power region.
cc
on page 172.
> Manual" mode, sets a pre-gain (i.e. an attenuation)
> Manual" mode, sets a post-gain to compensate the
Setting", on page 176.
Signal Generator Settings
Detroughing Function.
173