Atec Agilent-8563E - Manual (Page 127)

Adjustments ESG Family Signal Generators
Prelevel Calibration, Analog (ESG-A only)
5-30 Calibration Guide
Prelevel Calibration, Analog (ESG-A only)
Description
This adjustment determines and stores calibration data for the prelevel reference DAC on
the output module. This DAC maintains a consistent RF power level over the full
frequency range between the synthesizer module and the output module. Measurements
are performed at the RF OUTPUT connector. DAC calibration is determined by making
measurements at a high power level, reducing power level 10 dB with the ALC DAC, then
setting the prelevel reference DAC to set the RF output to +10 dBM.
Required Test Equipment
• HP/Agilent 438A Power Meter
• HP/Agilent 8482A Power Sensor
Procedure
Figure 5-26 Prelevel 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.