Atec Agilent-8563E - Manual (Page 115)

Adjustments ESG Family Signal Generators
Modulation Source Relative Gain Compression Calibration
5-18 Calibration Guide
Modulation Source
Relative Gain Compression Calibration
Description
This test provides a scaling factor for all of the multiplexed FM modulation inputs. The
scaling factor is used by the signal generator’s firmware to scale the actual requested FM
deviation from the synthesizer board when the corresponding input is selected. Three
scaling factors (EXT1, EXT2, and INT1) are generated during this calibration. The
resulting values are used to calculate the calibration values that are then stored in the
signal generator’s firmware.
Required Test Equipment
• HP/Agilent 3458A Digital Multimeter
• HP/Agilent 53132A Option 050 Universal Counter
• HP/Agilent 33120A 15 MHz Function/Arbitrary Waveform Generator
Procedure
Figure 5-14 Modulation Source Relative Gain Compression 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.