GME TX3340 User Manual
Page 4

PA G E 4
i n s t r u c t i o n m A n uA l
t X 3 3 4 0
channel up
EMErGENCy CHANNElS
the AcmA has allocated channels 5/35 for emergency use 
only. channel 5 is the primary simplex Emergency channel. 
Where a channel 5 repeater is available, you should select 
duplex on ch 5.
NOTE: channel 35 is the input channel for the channel 5 
repeater therefore channel 35 should also not be used for 
anything other than emergency transmissions.
TElEMETry CHANNElS
AcmA regulations have allocated channels 22 and 23 
for telemetry-only applications and have prohibited the 
transmission of speech on these channels. consequently the 
tX3340 has a transmit inhibit applied to channels 22 and 23.
in the event additional telemetry/telecommand channels are 
approved by the AcmA, these channels shall be added to those 
currently listed where voice transmission is inhibited. currently 
transmissions on channels 61, 62 and 63 are also inhibited and 
these channels are reserved for future allocation.
FEATUrES
•
 Controller Microphone: complete control of the radio from 
the microphone simplifies installation.
•
 Microprocessor Controlled Frequency Synthesiser: Allows 
user programmable control of scanning, channel memories 
and selected feature options.
•
Programmable Scan Function: scans the programmable
uhF cB channels with both Group and open scan functions 
available.
•
Individually Programmable DUPLEX function: user 
selectable for only those individual channels in your area that 
have repeaters, leaving the others free for use as extra 
simplex channels.
•
 Digital Signal Processing: measures, filters and compresses 
standard analogue audio signals and converts them into 
digital format. Allows advanced rF and audio processing 
techniques to be applied to maximise the radio’s performance.
•
Advanced Signal Management (ASM):
identifies
interference caused by strong local signals on adjacent 
channels and prevents it from opening your squelch. Asm 
also minimises distortion on reception by fine tuning the 
receiver frequency to match that of
the incoming signal.
this prevents your squelch from opening to unwanted 
interference and ensures that incoming signals remain clear 
and undistorted even when they are slightly off-frequency.
•
 Dynamic Volume Control (DVC): Automatically compensates 
for variations in received audio level resulting in a constant 
audio output level to the speaker. 
•
 Priority Channel: A user programmable priority channel 
feature allows your working or local repeater channel to be 
instantly recalled at the press of a button.
•
High Contrast Liquid Crystal Display: Fully detailed lcd 
provides a visual indication of the selected channel and all 
selected functions at a glance. Backlit for viewing at night.
•
In-Built Selcall: selective calling with five digit Ani and fully 
user-adjustable 5 tone transmitted selcall ident. Also allows 
naming of idents for easier caller identification.
•
Quiet Mode: selectable on individual channels, Quiet mode 
prevents incoming signals from being heard on selected 
channels unless preceded by your selcall code.
•
 CTCSS & DCS: A built-in continuous tone coded squelch 
and digital coded squelch system option provides quiet 
channel operation.
•
Overvoltage Protection: special overvoltage detection 
circuitry protects the radio and warns of excessive voltage 
conditions by flashing the display.
•
Surface Mount Technology: the very latest surface mount 
component types, design and assembly techniques and 
quality control procedures are used to ensure the highest 
performance and reliability.
