Alignment
Setup the test equipment as shown below, apply 13.6V DC power to the transceiver.
The transceiver must be programmed for use in the intended system before alignment is attempted. The RF parameters are loaded from the file during the alignment process.
Transceiver
ImportantIn order to facilitate alignment over the complete switching range of the equipment it is recommended that the
channel data in the transceiver is preset as the chart be- low.
CHANNEL | CHANNEL | FREQUENCY (SIMPLEX) | ||
SPACE | Version A | Version D | ||
| ||||
CH 1 | W ide | 147.100 MHz | 161.100 MHz | |
CH 2 | Narrow | 147.100 MHz | 161.100 MHz | |
CH 3 | W ide | 134.100 MHz | 148.100 MHz | |
CH 4 | W ide | 159.900 MHz | 173.900 MHz | |
The alignment mode is accessed by “Alignment mode” command from the computer whilst switching on. And it is operated by the alignment tool automatically.
During the alignment mode, normal operation is suspend- ed. Use the alignment tool program running on PC.
L1017
L1016
PLL VCV
¦Connect the positive lead of the DC voltmeter to the test point TP1007 (VCV) on the
indicated in the figure, and the negative lead to chassis ground.
¦Set the transceiver to the high band edge fre- quency channel, then adjust coil L1016 on the
Unit for 7.25V on the voltmeter.
¦Key the transmitter, and adjust coil L1017 on the Unit for 7.25V on the voltmeter.
¦Next select to the low edge frequency channel and confirm above 2.00V to 3.00V on the volt- meter.
¦Key the transmitter, and confirm above 2.00V to 3.00V on the voltmeter.
PLL Reference Frequency
With the wattmeter, dummy load and frequency counter connected to the antenna jack, and select band center frequency channel, key the transmitter and adjust VR1001 on the
within 100 Hz of the channel center frequency for the transceiver version.
TP1007
VR1001
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