Specifications

3
The PSG synthesized signal genera-
tors provide extremely flat power
at your test port for testing power
sensitive devices such as amplifiers,
mixers, diodes, or detectors. The user
flatness correction feature of the
PSGs compensates for attenuation
and power variations created by
components between the source and
the test device.
User flatness correction allows the
digital adjustment of RF output
amplitude for up to 1601 frequency
points in any frequency or sweep
mode (for example, start/stop, CW,
power sweep, and more.). Using
a power meter to calibrate the
measurement system, a power level
correction table is created for the
frequencies where power level varia-
tions or loss occur. These frequen-
cies may be defined in sequential
linear steps or arbitrarily spaced.
To allow different correction arrays
for different tests setup or different
frequency ranges, you may save
individual user flatness correction
tables to the signal generators
memory catalog and recall them
on demand.
This application note illustrates how
to utilize the user flatness correction
feature by providing step-by-step
instructions for several common
measurement examples.
Using External Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Leveling with a Millimeter-Wave Source Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Creating and Applying User Flatness Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Creating a User Flatness Correction Array Using a MM-Wave Source Module . . . . . . . .14
Performing the User Flatness Correction Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Saving the User Flatness Correction Data to the Memory Catalog . . . . . . . . . . . . . . . . . .19
IntroductionTable of Contents