Vehicle 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 obstructing any of the
vehicles controls. The radio can be mounted using the standard bracket or DIN mounting cage. If
mounted in a DIN slot in the vehicle the supplied release keys will need to be used to release the
radio.
Installation of the Main Unit
Before connecting the radio to the vehicles electric system, make sure that radio is switched off,
with the ON/OFF/VOLUME (1) knob completely turned counter clockwise to the OFF position.
Connect the DC power cable to the vehicles electric system, the radio can be powered from 12v or
24v DC.
Installation of the Antenna
Aspecific27MHzCBantennamustbeused.Pleasemakesuretocarefullyinstalltheantenna
mount on the vehicle with a good connection to ground. Before connecting the antenna to the radio,
it is necessary to check the antenna has a low standing wave ratio (S.W.R.), using an SWR meter.
If not, the transmitter circuit of the radio could be damaged. The antenna should be 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 low standing
wave ratio (S.W.R.) must be checked periodically. Connect the RF antenna coaxial cable to the
antenna connector (15), located on the rear side of the radio.
Checking Operation of the Radio
Once the radio has been connected to the vehicles electric system and to the antenna, the correct
operation of the system may be checked. Please proceed as follows :
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1. Check that the power cable is correctly connected.
2. Check that the RF antenna coaxial cable is correctly connected.
3. Connect the microphone to the connector (2), located on the front of the radio.
4. Ensure the radio is in Manual squelch mode by rotating the SQUELCH Control (8) clockwise until
it clicks into manual squelch mode.
5. Turn on the radio using the ON/OFF/VOL Control (1) and adjust the volume to the desired level.
6. Turn the SQUELCH Control (8) anti-clockwise until it clicks into the ASQ position, or if you prefer
to set the squelch manually, turn it clockwise until the background noise is silenced.
7. Select the desired channel, using the UP and DOWN buttons (9 + 10) or (17 + 19) on
microphone.
8. Press the PTT (19) key on microphone to transmit and release it to receive, or alternatively use
the PTT button on your accessory plugged into socket (12).
