Fm 1/2 path ratio gain calibration, Description, Required test equipment – Agilent Technologies E4438C User Manual
Page 111: Procedure, Fm 1/2 path ratio gain calibration -19, Description -19, Required test equipment -19, Procedure -19
Adjustments
FM 1/2 Path Ratio Gain Calibration
4- 19
FM 1/2 Path Ratio Gain Calibration
Description
This calibration equalizes the gain between the FM1 and FM2 paths. The gain of the FM2 path is adjusted
using the FM SCALE DAC and the resulting DAC value is stored in the signal generator’s firmware. This
calibration only affects source-independent gains. When uncalibrated sources feed into the paths, the gains
are adjusted using the
“Modulation Source Relative Gain Calibration” on page 4-20
Required Test Equipment
• Agilent 3458A Option 002 digital multimeter
• Agilent 53132A Option 050 frequency counter
• Agilent 33120A function generator
Procedure
Figure 4-12
FM 1/2 Path Ratio 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.