Product Manual

very strong signals to open the Squelch. The factory default is
SQL-3 which generally provides reliable Squelch operation for
most applications.
To adjust the Squelch sensitivity
1. Briefly press the
LEVEL
key. ‘SQL-X’ will be displayed where
X is a value from 1 to 9.
2. Press the or keys to change the Squelch value.
The Squelch adjustment is live allowing you to adjust the
Squelch to suit your current environment.
3. When your adjustment is complete, briefly press the
LEVEL
key to return to normal operation.
NOTE: The Squelch level can also be adjusted within the
Menu.
DUPLEX OPERATION
Duplex operation allows the radio to transmit on a different
frequency to that which it receives allowing operation through
repeater stations. Repeaters automatically
re-transmit your signal over a wider area, providing greatly
increased range.
Duplex operates only on channels 1-8 and 41-48. When
duplex is selected on these channels, the radio receives on
that channel but actually transmits 30 channels higher.
The TX3350 allows you to select Duplex operation individually
on each channel.
To select Duplex:
1. Select the required channel 1-8 or 41-48.
2. Briefly press the key then press the key.
will appear on the display accompanied by a high beep.
To remove Duplex from a channel
1. Select the required channel 1-8 or 41-48. will be
visible on the display.
2. Briefly press the key then press the key.
will disappear from the display accompanied by
a low beep.
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
*Emergency Channel only
TX3350 INSTRUCTION MANUAL PAGE 7
Vehicle
Simplex/Duplex Range Comparison
Simplex
Repeater
operation
Channel 31
Channel 1
Repeater
Station
Channel 1
Channel 31
Vehicle