Power Flatness - Agilent Technologies 83620A Service Manual

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14. Power Flatness

( he automated power atness adjustment in Chapter 5 may be used in place
of this procedure.)
Description and Procedure
In this procedure, the synthesizer measures and corrects power atness. he
synthesizer controls the power meter via HP-IB while the power meter is
measuring the RF output. For each synthesizer frequency band and a 0 dB
attenuator setting, control is given to the synthesizer to measure and correct
power atness.
his adjustment requires an HP 437B Power Meter. he
Note
correct power sensor calibration factors must be loaded and
selected. his procedure cannot be run with a controller on
the HP-IB, nor can it be run from a front panel emulator. For
Option 003 instrument, see Chapter 5.
1. Preset the instruments shown in Figure 3-26. Do
sensor to the synthesizer RF output yet. Let both instruments warm up for
at least one hour.
Figure 3-26. Power Flatness Adjustment etup
HP 8360
connect the power
not
Adjustments 3-97
Power Flatness