HP 83206A Manuel d'utilisateur télécharger pdf (Page 287)

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Chapter 11, Installing the Cellular Adapter

Connecting the Cellular Adapter to the HP 8920 Series Test Set

Installing the Cellular Adapter

I/Q Modulator and

Relative TX Power

Calibration

The I/Q Modulator and TX Power calibration routines must be run any time a

Cellular Adapter is disconnected and re-attached to a Test Set. TX Power should

also be recalibrated any time you suspect the relative TX Power readings are

drifting

Calibration Procedure

1. Press the TEST key to access the TEST (Main Menu) screen.

2. Under

Select Procedure Location:

choose

ROM

3. Under

Select Procedure Filename:

choose

PER_CALD

4. Press the k1 key to start the calibration program.

5. Follow the directions displayed on the screen.

a. Select and run the

I/Q Modulator

routine until it indicates that it has calibrated

at all frequencies; this will take several minutes. (Be sure to connect a short cable

from the DUPLEX OUT port to the ANT IN port before starting.)

b. Select and run the

Tx Power

routine. (Be sure to connect a short cable from the

DUPLEX OUT port to the RF IN/OUT port as instructed.)

6. When both calibration routines have been run, turn the Test Set off and back on to

enable the new calibration settings.

To Recalibrate Relative

TX Power

Repeat the previous procedure, skipping step 5a. Be sure to turn the power off and

back on to use the new power calibration settings before making more relative TX

Power measurements.

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HP 83206A Manuel d'utilisateur Page 287