Chapter 4 143
Optimizing Performance
Creating and Applying User Flatness Correction
Figure 4-6 User Flatness with mm–Wave Source Module for Signal Generators with Options 1EA, 1EU, or
521
CAUTION Option 521 signal generators can damage MM source modules. Consult the MM source
module’s operating manual for input damage levels.
NOTE To ensure adequate RF amplitude at the mm–wave source module RF input when using
Options 1EA, 1EU, or 521 signal generators, maximum amplitude loss through the adapters
and cables connected between the signal generator’s RF output and the mm–wave source
module’s RF input should be less than 1.5 dB.
Configure the Signal Generator
1. Turn on the signal generator’s line power. At power–up, the signal generator automatically does
the following:
• senses the mm–wave source module
• switches the signal generator’s leveling mode to external/source module
• sets the mm–wave source module frequency and amplitude to the source module’s preset
values
• displays the RF output frequency and amplitude available at the mm–wave source module
output
The MMMOD indicator in the FREQUENCY area and the MM indicator in the AMPLITUDE area of the
signal generator’s display indicate that the mm–wave source module is active
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