Agilent Technologies E4438C Guide d'installation télécharger pdf (Page 112)

Adjustments

Modulation Source Relative Gain Calibration

4-20

Modulation Source Relative Gain Calibration

Description

This calibration 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 A17

Synthesizer (Option 501, 502, 503, 504) 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

• Agilent 3458A Option 002 digital multimeter

• Agilent 53132A Option 050 frequency counter

• Agilent 33120A function generator

Procedure

Figure 4-13 Modulation Source Relative 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.

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Agilent Technologies E4438C Guide d'installation Page 112