
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 qualified technician or service center. Please
install the antenna carefully on the vehicle with proper
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.) via
adequate instruments. If not, the transmitter circuit of the radio could be damaged.
The antenna usually must 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 the 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 radio has been connected to the vehicle electric system and to the antenna, the
correct operation of the system should be checked. Please proceed as following:
1)Check that the power cable is correctly connected.
2)Check that the RF antenna coaxial cable is properly connected.
3)Connect the microphone to the connector (1) that is on the front side of theradio.
4)Rotate the SQUELCH (4) knob anticlockwise.
5)Turn radio on by the OFF/VOL (6) knob and adjust volume to the desiredlevel.
6)Select the desired channel with the up/down key on the front side of the radio.
7)Rotate the SQUELCH (4) knob clockwise to cut the background noise.
8)Press the PTT key to transmit and release it to receive.
9)Check the level of the received and transmitted signals on the 4 bar RXsignal
Meter and TX LED. The transceiver will work correctly.
• Do not invert power polarity
• Do not replace the fuse with a bigger one. The default is 2A.
• Do not transmit without an antenna connected, you risc damagingthe device.
• Set the SQ and ASQ at the limit of the background noise.
• Do not cut cigarette lighter socket, because it contains inside safetyprotection
5. USEFUL TIPS:
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6. STANDARD CHANGE:
To change the working standard of the radio follow the next instructions:
• When the radio is off, press the Down button simultaneously andPTT on the
microphone and then turn on the station, keeping thebuttons pressed.
• Use up and down buttons on the front panel of the radio to selectthe desired
standard
• Turn the radio off and on again
To check the current standard use the same procedure.