User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
120User Manual 1178.3370.02 ─ 09
This measurement is only available if the optional internal generator is installed
(R&S FPL1-B9) and active, and only in the Spectrum application.
Thus, you can use the internal generator signal as a reference input signal for your
power-converting DUT. Then you can compare the DUT input to its output at the RF
input of the analyzer. Ideally, the result is a linear trace, that is: the output is directly
proportional to the input power. Any distortion to the linear trace indicates the effects of
the DUT. This result is useful, for example, to determine the compression point for
amplifiers.
The settings for a power sweep measurement are described in "Power Sweep Set-
tings" on page 295.
● About the Power Sweep Compression Point Measurement................................. 121
● Power Sweep Compression Point Results............................................................123
● Power Sweep Compression Point Settings...........................................................124
● How to Determine Compression Points................................................................ 126
Measurements and Results