Keysight Technologies N5171B EXG, Руководство пользователя

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350 Keysight EXG and MXG X-Series Signal Generators User’s Guide
Real–Time Phase Noise Impairments (Option 432)
Real–Time Phase Noise Impairment
Real–Time Phase Noise Impairment
This feature lets you degrade the phase noise performance of the signal generator by controlling
two frequency points and an amplitude value. The signal generator adds this phase noise to the
phase noise normally produced by the signal generator. This feature appears in each of the arb
formats and as a stand–alone menu. While the following figure shows how to access the controls
using both the stand–alone menu and the Dual ARB player, the location and softkeys within each
arb format is the same as for the Dual ARB player.
Figure 14-1 Stand–Alone and Dual ARB Player Real–Time Phase Noise Softkeys
The end frequency for the flat
mid–frequency characteristics.
The start frequency for the flat
mid–frequency characteristics.
For details on each key, use key help
as described on
page 40
.
The display updates even
when the feature is off.
For an explanation on these
settings see
“Phase Noise Shape and
Additive Phase Noise
Impairments” on page 351
.
Flat Mid–
This softkey is
available in all arb
formats.
The amplitude for the flat mid–
frequency characteristics.
(Lmid stands for the level
amplitude of the mid–frequency
characteristic.)
NOTE : The phase noise impairment is added to the base phase noise of
the signal generator.
Stand–alone menu
Use to add phase noise to the
CW output without having to
play a waveform.