HP 83206A User Manual page 287

I/Q Modulator and
The I/Q Modulator and TX Power calibration routines must be run any time a
Relative TX Power
Cellular Adapter is disconnected and re-attached to a Test Set. TX Power should
Calibration
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.
6. When both calibration routines have been run, turn the Test Set off and back on to
Repeat the previous procedure, skipping step 5a. Be sure to turn the power off and
To Recalibrate Relative
back on to use the new power calibration settings before making more relative TX
TX Power
Power measurements.
Connecting the Cellular Adapter to the HP 8920 Series Test Set
.
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.)
enable the new calibration settings.
Chapter 11, Installing the Cellular Adapter
287