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Adjustments

FM/PM YO Frequency Compensation Calibration (Option UNJ or Option 506 Only)

4-23

FM/PM YO Frequency Compensation Calibration

(Option UNJ or Option 506 Only)

Description

This calibration is used to calibrate the FM/PM YIG oscillator frequency compensation latches on the

A21 YTO Driver (Option UNJ or Option 506). These latches adjust the flatness of the YO FM/PM paths for

rates greater than 100 kHz. The “FM In-Band DAC Offset Calibration” on page 4-17 and the “FM/PM

Out-of-Band Calibration (Option UNJ or Option 506 Only)” on page 4-22 must be performed prior to this

adjustment.

Required Test Equipment

• Agilent 8563EC Option 001 spectrum analyzer

• Agilent 33120A function generator

Procedure

Figure 4-16 FM/PM YO Frequency Compensation Calibration

(Option UNJ or Option 506 Only) 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 Guía de instalación Pagina 115