Agilent Technologies HP 83711A, User Manual

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T o Use the Level Correct Routine
When activated, the level correct function adjusts the synthesizer output
power (to compensate for losses or gains) to provide constant, leveled power
at output of the external signal path.
When the level correct routine is used, the synthesizer performs a calibration
process that corrects for external losses or power variations in an external
signal path. When the level correct routine is run, a power meter that
is under control of the synthesizer will measure power variations at the
output of the external signal path over a user-dened frequency range . The
synthesizer then reads back the power level data from the power meter
and creates a table of correction values for each frequency point (the level
correction table).
The level correction table resides in non-volatile memory and up to four
level correction tables can be stored for later use . If the power meter is in a
favorable range , the level correct routine takes approximately two minutes to
run.
N O T E
When using the level correct routine , the external path to the synthesizer must be linear (must have a
1 dB per 1 dB transfer function).
Using the level correct routine requires the following external equipment.
Equipment Requirements
HP 437B , 438A, 70100A, or
SCPI compatible power meter
No substitute .
P ower Sensor Must be compatible with the power meter used. Must be
capable of measuring power at the frequencies and levels
present at the output of the signal path being leveled.
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