GME TX670 User Manual

Page 15

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i n s t r u c t i o n m A n uA l

PA G E 1 5

If no further signals are received, the unit will return to
standby mode.

trAnsmitting

To transmit, press and hold the Push-To-Talk (PTT)
switch. the other radio you are talking to must be set to
the same channel (and ctcss code if applicable). Hold
the tX670 approximately 5 to 8 cms from your face
with the antenna vertical and speak into the built-in
microphone.
While the PTT switch is pressed, the LED indicator on
the upper edge of the radio will light red and the

icon will appear on the lcD.
When you have finished speaking, release the PTT
switch to receive incoming signals (it is not possible
to transmit and receive at the same time). if no further
signals are received, the unit will revert to Standby mode.

TIP:

the

PTT

switch can also be used to transmit a call

Alarm melody. When the call Alarm melody is enabled (see
Mode settings for more details on the Call Alarm settings),
pressing the

PTT

switch twice quickly will call another

party on the same channel and play the call Alarm melody
in their radio’s speaker. When this happens, the

icon

will appear and the lED indicator will light red for about 3
seconds. the call alarm can only be sent once per minute.

DUPlex/monitor KeY

the DUP/MON key is a dual function key that controls
both the Duplex and monitor functions.

DUP Key

Press this button to select Duplex mode on channels

1 – 8 and 41 – 48. Duplex can be enabled or disabled

separately on individual channels.

Duplex operation allows the tX670 to transmit on
a different frequency to that which it receives. this
allows operation through repeater stations in your area.
repeaters automatically re-transmit your signal over
a much wider area, providing greatly increased range.
the Duplex mode only works on channels 1 – 8 and
41 – 48. With Duplex selected, your TX670 actually
transmits 30 channels higher than it receives.

* Emergency channel only

Channel

Selected

Receive

Channel

Transmit

Channel

35*