Agilent Technologies E4438C Guide d'installation télécharger pdf (Page 132)

Adjustments

AM Gain Calibration

4-40

AM Gain Calibration

Description

This calibration adjusts the gain of the AM circuitry to provide a 10 dB drop for a 1 V input signal. First a

power level is set and a one-volt signal is connected to the input. AM is enabled and the AM DACs are

adjusted for an exact 10 dB drop. The resulting DAC value is stored as a calibration array.

Required Test Equipment

• Agilent E4418B E-Series power meter

• Agilent E9304A E-Series power sensor

• Agilent 33120A function generator

• Agilent 3458A Option 002 digital multimeter

Procedure

Figure 4-31 AM Gain Calibration Setup

1. Connect the equipment as shown above.

2. Preset all of the equipment.

3. Follow the instructions as they appear on the controller’s display.

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Agilent Technologies E4438C Guide d'installation Page 132