GME TX3345 User Manual
Page 22

HIGH VOLTAGE WARNING
The TX3345 has a built-in, high voltage detection system 
to warn you if an overvoltage situation occurs.
If the power supply voltage exceeds 18 volts DC, the 
channel display will flash ‘hi dc’ for 5 seconds when the 
unit is first turned ON, or at the time the voltage exceeds 
18 volts. In addition, when transmitting, the TX indicator 
will flash and the transmitter will select low output 
power.
If the overvoltage warning appears you should switch 
your TX3345 OFF and disconnect it from the power 
source before locating the cause of the trouble.
Once the high voltage warning has been triggered and 
you have fixed the source of the problem, you will need 
to switch the TX3345 OFF then ON again to reset it.
The power source must not exceed 25 volts otherwise 
permanent damage may occur to your radio, which may 
not be covered by the manufacturer’s warranty.
ANTENNA CONNECTION
GME supply a wide range of mobile and base 
station antennas designed specifically for UHF CB 
communications.
The antennas are fitted with a PL259 coaxial plug 
suitable for connection to the antenna socket on the rear 
panel of the radio. 
Extension speaker 
(optional)
Antenna socket
DC socket
Coax cable
Connector 
plug
Fuse
RED +
– BLACK
UHF aerial
PA G E 2 2
I N S T R U C T I O N M A N UA L
T X 3 3 4 5
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