Dynamic Volume Control (Dvc); Repeaters And Duplex Mode - GME TX3500 Instruction Manual

meter bars indicates the bandwidth setting. A narrow
space indicates a narrow-band setting while a wide space
indicates a wide-band setting.
Wide Band Setting
Narrow Band Setting
4. to change the setting, rotate the Channel knob left or
right. the signal bars will change to show the selected
bandwidth.
5. to return to normal operation, switch the radio oFF then
on again (or wait a few seconds for the function to
time-out).
NOTE:
the wideband filter selection only operates on
channels 1-40. channels 41-80 always remains narrowband.

dyNAMiC VOlUME CONTrOl (dVC)

the modulation level of signals heard on the uhF cB band has
always varied considerably resulting in noticeable differences
in received audio volume between stations. Generally users
have compensated for this by adjusting the volume control
for each received signal. With the introduction of 80 channel
narrowband transmissions that use lower levels of modulation,
the diversity in received audio volume is likely to increase
further.
the tX3500 is able to automatically compensate for these
variations in received audio level by utilising a dynamic
Volume control. When activated, this feature automatically
compensates for variations in received audio level resulting
in a constant audio output level to the speaker to greatly
enhance the quality of the reception.
t X 3 5 0 0
To switch the Dynamic Volume Control ON or OFF
1. switch the radio oFF.
2. Press and hold the PRI key while switching the radio on.
3. A high beep indicates the dVc is switched on while a low
beep indicates the dVc is oFF.

rEpEATErS ANd dUplEx MOdE

duplex operation allows the radio to transmit on a different
frequency to that which it receives. this allows operation
through repeater stations.
A repeater station consists of a linked transmitter/receiver
combination installed in a prominent location. the repeater
is designed to receive signals on a designated channel and
retransmit them on another channel. repeaters are usually
mounted on hills or tall buildings. the increased elevation
greatly improves both the receiving and transmitting range of
the repeater allowing it to receive and retransmit signals to
radios that would otherwise be out of range of each other.
normally, uhF radios transmit and receive on the same
frequency - known as simplex operation. however to
communicate through repeaters, your radio must be able to
transmit and receive on different channels – otherwise known
as duplex operation. your tX3500 is fitted with a duplex key
to allow you to operate through repeaters.
the duplex function can only be selected on channels 1-8 and
41-48 as these are the channels that have been allocated for
repeater use. When duplex is selected, your tX3500 receives
on the selected channel (e.g. ch 1) but transmits 30 channels
higher (ch 31). the repeater hears your signal on ch 31 and
retransmits it on ch 1 for others to hear.
Vehicle
I n s t r u c t I o n m A n u A l
Repeater
Station
Vehicle
PA G E 7