Agilent Technologies E4438C Instalační příručka stáhnout pdf (Strana 123)

Adjustments

Bypass Gain Adjust Calibration

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Bypass Gain Adjust Calibration

Description

This calibration adjusts the gain adjust DAC on the A13 Output for low noise floor (LNF) mode. The

instrument is set up with attenuation applied by way of the burst modulator. This ensures that the RF chain

is not in compression. The gain adjust DAC is then set for a specific RF output power, as measured with a

power meter.

Required Test Equipment

• Agilent E4418B E-Series power meter

• Agilent E9304A E-Series power sensor

Procedure

Figure 4-23 Bypass Gain Adjust 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 Instalační příručka Strana 123