Installation guide

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.