Specifications

Attenuator Slope Adjustment
Agilent Technologies
PSA Series Spectrum Analyzers
Test and Adjustment Software
Attenuator Slope Adjustment
The slopes for each attenuator setting in DC Coupled mode, and in the 10 dB AC Coupled
mode, are calculated and are stored in an array in EEROM on the A13 Front End Driver
assembly. The test is performed at 50 MHz, 2.8 GHz, 6 GHz, 10 GHz, 15 GHz, and 20
GHz for the E4440A, up through 10 GHz for E4445A, up through 6 GHz for E4443A,
and up through 40 GHz for E4446A/E4448A. At each test frequency, source power level
is set so that the power meter reads -10 dBm with the PSA set at 10 dB, DC Coupled
attenuation. This value is then used as the reference for the other attenuator states at that
frequency.
Instrument covers do not need to be removed for this adjustment. Also, this adjustment
must only be performed if the PSA has valid flatness correction data.
This adjustment should be performed after replacing the A13 Front End Driver, or after
replacing the A14 and/or A15 step attenuators.
Required Test Equipment
Test Equipment Model Number
E4440A
E4443A, E4445A
E4446A
E4448A
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