Vertex Standard VX-4500 Series, Руководство по обслуживанию

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VX-4500/-4600 Series VHF FM Transceiver Service Manual
Alignment
6. Maximum Deviation <Wide> / <Narrow>
This parameter is to align the “Maximum Deviation” (Wide/Narrow).
It requires the appropriate JIG (Tuning Interface BOX). Connect the JIG and Test Equipment to the radio before the
alignment is started.
1. Press the “Max Dev (W /N)” button to start the align-
ment.
2. The Max Deviation alignment window will appear.
3. Connect the Generator to the JIG's (Tuning Interface
Box) MIC IN jack and connect the JIG to the radio's
microphone connector. Then inject a 1 kHz tone / Sine
Wave / -24 dBm.
4. Click the left mouse button on the slide bar or press
the Up / Down arrow key, to select the desired chan-
nel.
5. Click the “PTT” button or press the “SPACE” bar the
radio starts to transmit on the selected channel.
6. Set the value to get desired deviation (Wide: 4.2kHz,
Narrow: 2.1kHz) on the deviation meter 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 on the selected channel.
7. After getting the desired deviation click the “PTT”
button or press the “SPACE” bar to stop transmitting.
8. Click the “OK” button to finish the Max Deviation
alignment and save the data.
ADJ Type
Basic : “Low-edge / band center / high-edge“ and
select the channel for alignment (Default).
Single : Alignment value changes only on the se-
lected channel.
All Freq : Alignment value changes on all channels.
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