GME TX670 - Page 15

TX670 INSTRUCTION MANUAL PAGE 15
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nished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
1 1 31
2 2 32
3 3 33
4 4 34
5* 5* 35*
6 6 36
7 7 37
8 8 38
41 41 71
42 42 72
43 43 73
44 44 74
45 45 75
46 46 76
47 47 77
48 48 78