Edit I/Q Envelope Shape Settings - R&S SGT100A User Manual

®
R&S SGT100A
Scale ← Graphic Configuration
Determines the units, "Voltage" or "Power", used on the x and y axis.
Table 7-11: Units on the x axis
Envelope Voltage Adaptation
Envelope Voltage Adaptation
malized
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:SCALe
on page 442
Diagram ← Graphic Configuration
Visualizes the resulting envelope shape, as function of the selected supply voltage V
and PEP
PA.
See
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VCC:VALue:LEVel?
on page 440
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VCC:VALue:PEP?
on page 440
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VCC:VALue?

7.5.6 Edit I/Q Envelope Shape Settings

The envelope shaping table is a method to define the shaping function.
To access the internal table editor
1. Select "I/Q Analog > I/Q Analog Settings > General".
2. Enable "RF Envelope > On".
3. Select "Envelope Voltage Adaptation > Manual".
4. Select "Shaping Settings > Shaping > From Table".
5. Select "Shaping Table > Envelope Shaping File > New"
6. Enter the "File Name", e.g. MyLUT
The "Envelope Shaping File" dialog closes.
The "Shaping > Shaping Table" confirms that the newly created file is assigned.
7. Select "Shaping Table > Envelope Shaping File > Edit"
8. Define the value pairs "Vin/Vmax" and "Vcc/Vmax". The order is uncritical.
9. Select "Save".
User Manual 1176.8674.02 ─ 07
> Auto Power
> Auto Nor-
value limits, the calculated pre-gain and the estimated operating point of the
in
Figure 7-15.
Signal Generator Settings
Generation of Envelope Tracking Signals
"Scale > Power"
P [dBm]
in
P /P
in max
"Scale > Voltage"
[V] = √P
V
in in
V /V
in max
cc
on page 440
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