GME TX670TP - Manual (Page 7)

TX670TP INSTRUCTION MANUAL PAGE 7
reCeiVing signAls
While the TX670 is not receiving signals, it will remain in the
Standby mode to conserve battery power.
When a signal is received, the LED indicator on the upper edge of
the radio will light green and the icon will appear on the display.
Adjust the Volume control for a comfortable listening level.
If the incoming signal is encoded with a CTCSS tone that matches
the one set in your radio, the LED indicator will light orange and
you will be able to hear the signal in the speaker.
If the LED indicator lights green and the icon appears but
you cannot hear the signal, it is likely that your radio has CTCSS
enabled and the incoming signal is not using your selected CTCSS
tone (see ‘Mode Settings’ for more details on CTCSS settings).
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 cm
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 to 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 5 seconds.
DUPlex/monitor KeY
The Duplex/Monitor 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.