TB9100 Calibration Software User’s Manual Calibrating the Reciter 15
Calibrating the Reciter
The reciter is fully calibrated in the factory, but if the reciter is serviced you may
need to perform the following procedures:
■ Calibrating the Exciter
■ Calibrating the RSSI
■ Calibrating the Balanced Line
To compensate for frequency drift, you may need to perform the following:
■ Carrier Frequency Offset Adjustment
All these procedures can be done independently of each other, although it is
recommended that you tune the receiver before you calibrate the RSSI.
Important: It is recommended that only accredited service centers
and Tait engineers perform these procedures.
Calibrating the Exciter
You will need to calibrate the exciter if you have made component-level repairs
to it. There are three steps:
1. Auto-tune the FCL
2. Calibrate the FCL
3. Calibrate the VCO
Automatically Tune the Frequency Control Loop (FCL)
Tuning the FCL calibrates the voltage levels used in the detectors for the FCL.
To automatically tune the FCL
1. Set up the equipment and connect the Calibration Software to the reciter.
2. Select the Reciter Calibration tab, and double-click FCL Auto Tuning.
The FCL Auto Tuning Wizard appears.
3. Click Calibrate to automatically tune the FCL.
The icon on the Reciter Calibration tab indicates that this task is complete.
You will now need to calibrate the FCL.
Calibrating the FCL
This is step two of calibrating the exciter. Once you have auto-tuned the FCL,
you should calibrate it.
Equipment ■ Murata tuning tool
■ Modulation meter
■ RF attenuator (only required if you are using a PA)
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