GME TX3500 - VOLTAGE AND ANTENNA SAFETY

T X 3 5 0 0 I N S T R U C T I O N M A N U A L PAG E 1 5
HIGH VOLTAGE WARNING
The TX3500 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
TX3500 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 TX3500 OFF then ON again to reset it.
The power source must not exceed 30 Volts.
ANTENNA CONNECTION
It is essential to select a good quality, high efficiency, 477
MHz antenna. A poor quality antenna or one not designed for
the specific frequency band you are using will give very poor
performance.
GME have a wide range of suitable 477 MHz UHF CB
antennas to suit most installations and applications. We
recommend contacting your local GME retailer for advice.
Connect to the antenna cable to the rear antenna socket using
a PL259 coaxial connector.
NOISE SUPPRESSION
The inherent design of FM transceivers results in a high level
of resistance to ignition and electrical interference. However
in some installations it may be necessary to take additional
steps to help reduce or eliminate noise interference. During
installation, try to route the DC battery leads, the antenna lead
or any accessory wires away from the engine compartment,
ignition or alternator wiring. If the noise continues, it may be
necessary to fit a suppression kit in which case we recommend
you consult an auto electrician for advice specific to your
installation.
Higher frequency electrical interference cause by electric
motors can be suppressed directly at the motor terminals.
Radio remains ON when ignition switch is OFF
RED
To Radio
To Radio
Fuse
BLACK
Chassis
Car battery
Ingnition Switch
Radio turns ON and OFF with ignition switch
RED
BLACK
Chassis
Car battery
Ingnition Switch
Extension Speaker
RED +
Fuse
-BLACK
Connector Plug
DC Socket
Antenna Socket
Coax Cable
UHF Aerial