GME TX665 - Manual (Page 13)

T X 6 6 5 I N S T R U C T I O N M A N UA L PA G E 1 3
DUPLEX OPERATION
Duplex operation allows the radio 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 designated repeater channels 1 – 8
and 41 – 48. With Duplex selected on one of these channels, your radio actually
transmits 30 channels higher than it receives.
e.g. If Duplex is selected on channel 1, your radio will receive on channel 1 but will
transmit on channel 31.
Duplex can be enabled or disabled on individual channels. When Duplex is enabled on
the selected channel,
is displayed.
The Duplex mode is set through the Menu. Please refer to the Menu options further below.
Simplex/Duplex Range Comparison
SCANNING
Channel scanning allows you to monitor all channels for incoming signals.
NOTE: While the radio is scanning, the Menu setting key is disabled.
TO ADD OR REMOVE SCAN CHANNELS
To select the required channel
1. Hold the MENU key for 2 seconds until the channel number flashes.
2. Press the or keys to select the desired channel. Channels with the
icon
visible are already in the scan memory while those that do not display the icon
are not presently stored in the scan memory.
3. When the desired channel is displayed, press the PTT to exit.
To add or remove the selected channel from the scan memory
1. Press F followed by SQL.
• If the channel is in the scan memory, a low beep will be heard, the channel
will be removed from the scan memory and the icon will disappear on
that channel.
• If the channel is not in the scan memory, a high beep will be heard, the channel
will be added to the scan memory and the icon will appear on that channel.
CHANNEL
31
CHANNEL
1
CHANNEL
1
CHANNEL
31
VEHICLE
SIMPLEX
REPEATER
OPERATION
VEHICLE
REPEATER
STATION