GME TX3340 User manual

INSTRUCTION MANUAL
Super compact remote mic 5 watt 80 channel UHF CB radio

PAGE 2 INSTRUCTION MANUAL TX3340
INTRODUCTION ................................................................................. 3
IMPORTANT INFORMATION................................................................ 3
EMERGENCY CHANNELS.................................................................... 4
TELEMETRY CHANNELS...................................................................... 4
FEATURES.......................................................................................... 4
GENERAL OPERATION........................................................................ 5
MC520B Microphone/Controller................................................. 5
Function Keys............................................................................. 5
Volume Key................................................................................ 5
Selecting Channels..................................................................... 5
Keylock Feature.......................................................................... 5
Transmitting............................................................................... 5
Squelch Control ......................................................................... 6
Squelch Sensitivity...................................................................... 6
Priority Channel ......................................................................... 6
Duplex Operation....................................................................... 6
CTCSS & DCS..................................................................................... 7
Selecting the CTCSS or DCS Tone................................................ 7
Enabling CTSS/DCS on a Channel............................................... 7
Disabling CTCSS/DCS on a Channel............................................ 8
Monitoring the Channel ............................................................. 8
SCANNING ........................................................................................ 8
Scan Groups .............................................................................. 8
Selecting a Scan Group .............................................................. 8
Programming Scan Channels...................................................... 8
OPEN SCAN MODE ............................................................................ 9
Using Scan in the Open Scan Mode............................................ 9
GROUP SCAN MODE.......................................................................... 9
Setting Up the Group Scan......................................................... 9
Scanning in the Group Scan Mode.............................................. 9
Using Two Group Scan or Two Open Scan Modes...................... 10
SELECTIVE CALLING......................................................................... 11
Selcall Indentification Number.................................................. 11
Selcall Ident Names.................................................................. 11
Quiet Mode (Q)........................................................................ 11
Selcall Memories...................................................................... 11
USING SELCALL ............................................................................... 11
Entering a Selcall Ident............................................................. 12
Sending Sellcall........................................................................ 12
Call Acknowledge .................................................................... 12
Storing Selcall Idents................................................................ 12
Recalling Selcall Idents from Memory........................................ 12
Naming Your Selcall Idents ....................................................... 13
Displaying ALPHA Names ......................................................... 13
Entering and Storing a Selcall Name......................................... 13
Changing Your Own Selcall Ident.............................................. 13
To Exit ‘Call To’ Mode............................................................... 14
Receiving Selcalls..................................................................... 14
Cancelling the Selcall Alert ....................................................... 14
Quiet Mode ............................................................................. 14
Scannning in Quiet Mode......................................................... 15
GROUP CALLING.............................................................................. 16
Programming and Sending Group Calls .................................... 16
MENU SETTINGS.............................................................................. 17
Setting the Squelch Sensitivity .................................................. 17
CTCSS & DCS........................................................................... 18
Backlighting............................................................................. 19
Display Colour ......................................................................... 19
Battery / S-Meter / ALPHA Selection.......................................... 19
Beep........................................................................................ 19
INSTALLATION ................................................................................. 19
Antenna Installation................................................................. 20
DC Power Connection .............................................................. 21
High Voltage Warning .............................................................. 22
Antenna Connection ................................................................ 22
CTCSS TONE FREQUENCY CHART..................................................... 23
DCS TONE CHART............................................................................. 24
UHF CB OPERATING FREQUENCIES .................................................. 25
SPECIFICATIONS .............................................................................. 26
SC CONTRACT WARRANTY AGAINST DEFECTS................................. 27
CONTENTS

TX3340 INSTRUCTION MANUAL PAGE 3
INTRODUCTION
Your GME TX3340 80 channel is Australian designed and built
and is the most advanced UHF Citizen Band radio available.
The TX3340 combines the very latest in electronic hardware
with the most up-to-date computer aided design and
manufacturing techniques to produce an extremely compact
mobile radio with outstanding specifications and performance.
The TX3340 with its Controller Microphone is designed for
unobtrusive mounting in modern vehicles. The radio case
with its built-in loud speaker and extremely small size can be
mounted in almost any convenient location.
NOTE: The Citizens Radio Service is licenced in Australia by
ACMA Radiocommunications (Citizens Band Radio Stations)
Class Licence and in New Zealand by MED General User Radio
Licence for Citizens Band Radio and operation is subject to
conditions contained in those licences.
IMPORTANT INFORMATION
CONCERNING 80 CH UHF CB RADIO
The use of the Citizen Band radio service is licensed in Australia
by the ACMA Radio communications (Citizens Band Radio
Stations) Class Licence and in New Zealand by the Ministry of
Economic Development New Zealand (MED). A General User
Radio Licence for Citizens Band radio and operation is subject to
conditions contained in those licences.
The class licence for users and equipment operating in the CB/PRS
477 MHz band has been amended. This radio meets the new 80
channel standard.
In simple terms the same amount of spectrum is available;
however,
radio transceivers can now operate in a narrower
bandwidth and hence use less spectrum. These radios are
generally referred to as narrowband or 12.5 kHz radios. By using
12.5 kHz channel spacing instead of 25 kHz, the 40 channels
originally allocated can now be expanded to 80 channels thereby
doubling the channel capacity and relieving congestion in the UHF
CB/PRS band.
Original 40 channel wideband Radios will continue to operate on
the original 40 channels, however they will not be able to converse
on the newer channels 41 – 80. The newer narrowband radios will
be able to converse with all older 40 channel wideband radios on all
channels 1 to 40 as well as the newer channels allocated from
41 to 80.
The mixing of narrowband and wideband radios in the same
spectrum can cause some possible operating issues of interference
and varying levels of received volume.
Possible issues
When a new narrowband radio receives a transmission from an
older wideband radio the speech may sound loud and distorted
- simply adjust your radio volume for best performance.
When an older wideband radio receives a signal from a new
narrowband radio, the speech may sound quiet - simply adjust
your radio volume for best performance.
Depending on how close your receiving radio is to another
transmitting radio, there can be interference from the
transmitting radio if it is using a channel adjacent to the
channel you are listening to. Simply try going up or down a
few channels from the currently selected channel. The above
situations are not a fault of the radio but a symptom of
operating wideband and narrowband radios in the same
bandwidth. This possible interference will decrease over time as
the population of wideband radios ages and decreases.
Further information and updates are available from the
Australian Communications and Media Authority (ACMA) at
www.acma.gov.au and the Ministry of Economic Development
(MED), Radio Spectrum Management at: www.rsm.govt.nz
ACCESSORIES SUPPLIED
• Main Radio Unit
• Mounting Cradle
• Instruction Manual
• MC520B LCD Microphone
• Microphone Clip
• DC Lead
• Screw Pack
If any items are missing or
damaged, please contact your
retailer or place of purchase .

PAGE 4 INSTRUCTION MANUAL TX3340
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.

Channel Up
Push-To-Talk (PTT) Skip/Call
Channel Down
Menu / F Key
Power Key
Quiet/Duplex
Key
Squelch/ALPHA
Key
SCAN/OS/GS
Key
PRI Key/KeylockMicrophone
Volume Up Key
Volume Down Key
LCD Display
TX3340 INSTRUCTION MANUAL PAGE 5
•Designed and Manufactured in Australia: The TX3340 has
been totally designed and manufactured in Gladesville NSW
to meet the demanding needs of the Australian community
GENERAL OPERATION
MC520b MiCroPhone/Controller
FunCtion Keys
There are several keys beneath the microphone controller’s
display that have both primary and secondary functions. Their
primary functions are printed in Black while their secondary
functions are printed in Red.
To access the primary functions
Simply press the required key. e.g. To control the Squelch,
briefly press the SQL key.
To access the secondary functions
Press the red Fkey followed immediately by the required red
coloured key.
NOTE: If the secondary key is not pressed within 10 seconds
the Fkey selection will be cancelled.
VoluMe Key
Press the +key to increase the volume and the –key to
decrease the volume.
NOTE: At minimum volume setting there is still sufficient
volume to be heard in a quiet cabin environment.
seleCting Channels
Press the or keys to step upwards or step downwards
one or more channels.
KeyloCK Feature
The key locks the keys on the microphone to prevent
unintentional key presses from altering your TX3340 settings.
While the keys are locked, only the PTT (Push-To-Talk), SQL
key, on/off, Volume keys, the Fkey and the (Keylock) key
will continue to function.
To lock the keys
Briefly press the
F key, then press and hold the key until a
high beep is heard. ‘LOCK’ will appear briefly on the display.
To unlock the keys
Briefly press the
F key, then press and hold the key until a
low beep is heard. ‘ULOCK’ will appear briefly on the display.
transMitting
Prior to transmitting, always check the channel is not being used.
This can be done by either listening or by checking the ‘Busy’
indicator is not lit.
To transmit, press the PTT button. Hold the microphone about
5-8 cm from your face and speak at a normal voice level.
The microphone is quite sensitive so it is not necessary to raise
your voice or shout. Release the PTT when you have
finished talking.
IMPORTANT: Always listen to ensure the channel is free
before transmitting.