Shaping Settings - R&S SGT100A User Manual

®
R&S SGT100A
Figure 7-14: Effect of enabled positive RF delay
1
2a, 2b = Envelope signal E and inverted envelope signal E BAR
Use this parameter to compensate possible timing delays caused by connected cables
and align the input signals at the PA to prevent unwanted effects, like memory effects
or decreased linearity.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:DELay
Calculate Envelope form Predistorted Signal
In instruments equipped with option R&S SGT-K541, enables the calculation of the
envelope signal from the original baseband signal or from the AM/AM and/or AM/FM
predistorted signal.
See also
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:FDPD

7.5.5 Shaping Settings

The envelope tracking is a feature that requires the additional option R&S SGT-K540.
To access the shaping settings in "Envelope Voltage Adaptation > Auto Power/
Normilization" mode
1. Select "I/Q Analog > I/Q Analog Settings > General".
User Manual 1176.8674.02 ─ 07
= RF signal
Chapter 7.6, "Applying Digital
Signal Generator Settings
Generation of Envelope Tracking Signals
2a
1
2b
Predistortion", on page 178.
on page 436
on page 436
167