GME TX3400 - Manual (Page 5)

automatically re-transmit your signal over a
wider area, providing greatly increased range.
The Duplex function operates only on channels
1 - 8. When Duplex is selected on one of these
channels, the TX3400 receives on that channel
but actually transmits 30 channels higher.
E.g.
The TX3400 allows you to select duplex
operation on individual channels. This is
particularly useful in country areas where there
may only be one or two repeaters. Then
unused repeater channels can be used for
normal simplex or direct radio-to-radio
communications.
To select Duplex on individual channels:
1. Select the required channel 1 - 8.
2. Briefly press the DUP key. ‘DUP’ will appear
on the display accompanied by a high beep.
To remove Duplex from a channel:
1. Select the required channel 1 - 8. ‘DUP’ will
be visible on the display.
2. Briefly press the DUP key. ‘DUP’ will
disappear from the display accompanied by
a low beep.
PRIORITY CHANNEL
The Priority channel feature allows you to store
one of the 40 channels in the TX3400 as a
priority channel that can be instantly recalled at
the press of a key. This can be used to provide
instant access to your working channel or your
local repeater channel.
To store a Priority channel:
1. Select the required channel.
2. Press and hold the Channel Knob. The
channel display will flash for a moment then
a high beep will be heard as the selected
channel is stored.
To recall a Priority channel:
Briefly press the Channel Knob. The TX3400
will immediately switch to the Priority channel
accompanied by a high beep.
The TX3400 features two scan groups - Open
Scan and Group Scan.
• Open Scan allows any of the fitted channels
to be scanned for activity in an ascending
sequence (i.e. from the lowest channel to
the highest). Channels are scanned at a rate
of 20 channels per second. If a busy
channel is found, scanning will pause to
allow the signal to be heard. Once the
channel has been clear for 5 seconds,
scanning will resume automatically.
• Group Scan also allows any of the fitted
channels to be scanned for activity in an
ascending sequence, but in addition, it also
inserts your Priority channel into the scan
sequence. This means that your Priority
channel will be monitored regularly while
scanning to ensure that no calls are missed.
Any signals received on your Priority
channel will have priority over any signals
received on the other channels.
Example showing Group Scan channels 1 to 8
with priority channel 20.
5
Channel Selected 1 2 3 4 5 6 7 8
Receive Channel 1 2 3 4 5 6 7 8
Transmit Channel 31 32 33 34 35 36 37 38
SCANNING
1 - 2 - 3 - 4 - . . . . . . . . . . - 39 - 40
1 - 2 - 3 - 4 - 20 - 5 - 6 - 7 - 8 - 20