User's Manual

26 Calibrating the TCXO MB8100-90-00-806 © TEL 2004
Equipment ■ Frequency counter
■ RF attenuator (only required if you are using a PA)
Important: The accuracy of the calibrated TCXO frequency is only
as good as the accuracy of the frequency counter.
Setup
To calibrate the TCXO
1. Ensure you are already connected to the reciter.
2. Select the Reciter Calibration tab, and double-click Carrier Freq Offset
Adjustment. The Carrier Freq Offset Adjustment Wizard appears.
3. Attach an appropriate load and frequency counter (or a test set) to the exciter
or PA output, and then click Next. (If you are using a PA, it will now
transmit.)
4. Using the slider, adjust the TCXO until the actual frequency is exactly the
same as the selected frequency value. Click Coarse to roughly (and quickly)
adjust the output frequency, and then click Fine to fine-tune it. When you
have finished, click Finish. (If you are using a PA, it will now stop
transmitting.)
When you have finished calibrating the TCXO, the icon on the Reciter
Calibration tab indicates that this task is complete.
1 2
3
4
1 Reciter 3 RF Attenuator pad (optional)
2 PA (optional) 4 Frequency counter