Emerson R&S SGT100A User Manual page 171

®
R&S SGT100A
Example: Shaping table file content (*.iq_lut file)
# Rohde & Schwarz - IQ Output Envelope Shaping Table
# Vin/Vmax,Vcc/Vmax
0.3,0.4
0.35,0.45
0.56,0.55
0.4,0.5
0.6,0.65
0,0.135
Shaping function in raw data format
The shaping values are defined directly, with a single remote control command. You
define up to 4000 comma-separated value pairs, describing the Vin/Vmax,Vcc/Vmax
or Power[dBm],Vcc[V].
Example:
SOURce1:OUTPut:ANALog:ENVelope:SHAPing:PV:FILE:DATA 0,0, 0.1,0.2, 1,1
See:
●
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:FILE:DATA
on page 497
●
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:PV:FILE:
DATA
●
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:FILE:NEW
on page 497
●
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:SHAPing:PV:FILE:NEW
on page 497
Converting shaping functions and understanding the displayed values
If an envelope function is defined, the "Shaping" dialog displays the diagram of the
resulting envelope shape.
See for example
Several parameters influence the displayed information:
●
The selected "Envelope Voltage Adaptation" determines whether the x-axis uses
normalized or linear values
●
The selected "Graphic Configuration > Scale" sets the x-axis units
●
The selected V
areas
●
The selected "Shaping" function and the parameters influence the envelope shape.
The illustration on
function.
User Manual 1176.8674.02 ─ 12
on page 497
Figure 6-17.
Min/Max and PEP
cc
Figure 6-12 shows how these parameters influence a linear shaping
Signal generator settings
Generation of envelope tracking signals
Min/Max values set the borders of the clipping
in
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