A4 Agc Gain Adjustment; Required Equipment; Procedure - Agilent Technologies E4991A Service Manual

Rf impedance/material analyzer

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A4 AGC Gain Adjustment

The purpose of this procedure is to adjust the Gain of AGC on the A4 Receiver Board.

Step 1. Run the adjustment program.

Step 2. Choose the A4 Adjustment in the Spot Adjustment.

It is possible to perform this item with the All Adjustment too.

Step 3. Make sure that nothing is connected to the E4991A.

Step 4. Follow the adjustment program instruction to update the correction constant.