Intek M-899 VOX, Руководство пользователя

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Installation
Installation
Before installing the main unit in the vehicle, check and select the most convenient location, in order that the radio will be
easy to reach and comfortable to operate, without disturbing or interfering with the vehicle drive. Use the supplied
bracket and hardware to install the radio. The bracket screws must be well tightened in order not to become loosen with
the vehicle vibrations. The car mounting bracket can be installed over or below the radio and the radio may be inclined
as desired according to the specific type of installation (under dashboard or track cabin roof installation).
Installation of the Main Unit
Before connecting the radio to the vehicle electric system, make sure that radio is switched off, with the OFF/VOL knob
(11) completely turned counter clockwise at OFF position. The DC power cable (15) of the radio is complete with a fuse
holder with fuse located on the red positive (+) wire. Connect the DC power cable to the vehicle electric system, with
special attention to respect correct polarity, even if the radio is protected against polarity inversion. Connect the red wire to
the positive (+) pole and the black wire to the negative (-) pole of the vehicle electric system. Make sure that the wires and
terminals are firmly and stably connected, in order to prevent cables from disconnecting or causing short circuits.
Installation of the Antenna
A specific mobile antenna adjusted for 27 MHz frequency range must be used. The antenna installation must be done by
a specialised technician or service centre. Please pay special attention to carefully install the antenna on the vehicle with
perfect connection to ground. Before connecting the antenna to the radio, it is necessary to check the correct operation
of the antenna with low standing wave ratio (S.W.R.), using adequate instruments. If not, the transmitter circuit of the
radio could be damaged. The antenna must be usually installed on the highest part of the vehicle, free from obstacles
and as far away as possible from any source of electric or electromagnetic noise. The RF antenna coaxial cable must
not be damaged or pressed on its way between antenna and the radio. The correct operation of the antenna and the low
standing wave ratio (S.W.R.) must be checked periodically. Connect the RF antenna coaxial cable to the antenna
connector (14), located on the rear side of the radio.
Checking Operation of the Radio
Once radio has been connected to the vehicle electric system and to the antenna, the correct operation of the system
may be checked. Please proceed as follows :
1)
Check that the power cable (15) is correctly connected.
2) Check that the RF antenna coaxial cable is correctly connected.
3) Connect the standard 4-pin microphone to the connector (12), located on the front side of the radio.
4) Rotate the AS/SQL knob (10) counter clockwise.
5) Turn radio on using the OFF/VOL knob (11) and adjust volume to the desired level.
6) Select the desired channel, using the CHANNEL knob (7).
7) Rotate the AS/SQL knob (10) clockwise, to cut the background noise.
8) Press the PTT key (16) to transmit and release it to receive.
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