Power Flatness - Agilent Technologies 83620A Service Manual

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5. Power Flatness

Description and Procedure
his procedure uses the user atness correction array to automatically measure
power atness. he power meter is connected directly to the synthesizer's RF
output. he synthesizer controls the power meter via HP-IB while the power
meter measures the RF output. ( here cannot be another controller on the
HP-IB during this test.) If the synthesizer has a step attenuator, it is set to
0 dB so that any input into the atness array indicates the RF output power
atness.
his performance test requires an HP 437B power meter. he
Note
correct power sensor calibration factors must be loaded and
selected.
his procedure deletes any existing user atness correction
array.
1. urn on the equipment shown in Figure 2-6. Connect the power sensor for
the frequency range being calibrated. Do not connect the power sensor to
the synthesizer yet. Preset all instruments and let them warm up for at
least one hour.
Figure 2-6. Power Flatness Test etup
HP 8360 Performance Tests 2-31
Power Flatness