Service manual

12VX-4500/-4600 Series UHF FM Transceiver Service Manual
Alignment
1. VCO (RX VCO/TX VCO) - Normally there is no need to adjust this parameter -
This parameter is to align the VCO Voltage adjustment.
2. PLL Reference Frequency
(
Frequency
)
This parameter is to align the reference frequency for PLL.
1. Press the “Frequency” button to start the alignment.
The Frequency Alignment window will appear.
2. Click the “PTT” button or press the “SPACE” bar, and the
radio will start to transmit on the center frequency channel.
3. Set the value to get the desired frequency by dragging the
slide bar, clicking the up-down button, pressing the left or
right arrow key, or entering the value in the entry box.
4. After getting the desired frequency click the “PTT” button
or press the “SPACE” bar to stop transmitting.
5. Click the “OK” button to finish the frequency alignment
and save the data.
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