User's Manual

TB8100 Calibration Kit User’s Manual Selecting the Communications Port 5
Power Amplifier
Power
Management Unit
Selecting the Communications Port
Before you connect to a base station, you should first define the
communications (COM) port that you want to use.
To select the COM port
1. Select Tools > Options.
2. Select the port that you want to use from the COM Port list.
Note: The available COM ports are detected by the program and
appear in the list.
3. Click OK.
The COM port you selected is now shown on the status bar.
Connecting to a Reciter Outside the Subrack
Field calibration procedures require access to the tuning holes, so you need to
remove the reciter from the subrack and connect to it using a CTU.
Equipment ■ Calibration and test unit (CTU)
■ An IBM compatible PC
■ 10-30 V DC power supply
■ 16-way cable
■ RS-232 cable
Procedure Connection Equipment Required
Calibrating the PA bias Inside subrack None required
Calibrating the forward &
reverse detector bias voltages
Inside subrack None required
Calibrating the PA power Inside subrack None required
Storing supply voltages Inside subrack Variable voltage external
power supply
Procedure Connection Equipment Required
Output voltage calibration Inside subrack Digital multimeter