Signal Generator Settings
R&S
®
SGT100A
167
User Manual 1176.8674.02 ─ 07
1
2a
2b
Figure 7-14: Effect of enabled positive RF delay
1
= RF signal
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
Chapter 7.6, "Applying Digital Predistortion"
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".
Generation of Envelope Tracking Signals