Gme Tx3345 User manual

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INSTRUCTION MANUAL

5 watt super compact UHF CB remote LCD mic

46397-2_TX3345_InsMan.indd 1 11/09/13 12:04 PM

ACCESSORIES SUPPLIED.................................................3

IMPORTANT INFORMATION............................................3

EMERGENCY CHANNELS................................................3

TELEMETRY CHANNELS..................................................3

FEATURES ......................................................................4

GENERAL OPERATION....................................................5

MC524B Controller Microphone..............................5

Display....................................................................5

Function Keys..........................................................5

Volume Key.............................................................5

Transmitting............................................................6

Squelch...................................................................6

Squelch Sensitivity...................................................6

Menu .....................................................................7

Backlighting............................................................7

Key Beeps...............................................................7

Signal Meter/Battery Meter .....................................8

Priority Channel ......................................................8

Duplex Operation....................................................8

Dynamic Volume Control (DVC) ...............................9

CTCSS & DCS.................................................................9

Choosing the CTCSS or DCS Tone............................9

To select a CTCSS or DCS Tone ..............................10

Enabling CTSS/DCS on a Channel..........................10

Disabling CTCSS/DCS on a Channel.......................10

MONITORING THE CHANNEL........................................10

SCANNING ..................................................................11

Scan Groups .........................................................11

Selecting a Scan Group .........................................11

Programming Scan Channels................................11

OPEN SCAN MODE ....................................................12

GROUP SCAN MODE..................................................12

Auto Skip.............................................................13

Quick Channel Select ...........................................13

Using two Group Scan or two Open Scan Modes ..13

SELECTIVE CALLING....................................................13

SelCall Indentiﬁcation Number (IDENT).................14

SelCall Ident Labels..............................................14

The Quiet Mode ...................................................14

USING SELCALL ..........................................................14

Entering a SelCall Ident........................................14

Call Acknowledge ................................................15

SelCall Memories .................................................15

Labelling your SelCall Idents.................................15

Receiving SelCalls ................................................16

Quiet Mode .........................................................16

Scanning in the Quiet Mode.................................17

GROUP CALLING.........................................................18

INSTALLATION ............................................................19

Antenna Installation.............................................19

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

PAGE 2 INSTRUCTION MANUAL TX3345

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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.

There can be interference from a nearby 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

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

TX3345 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.

ACCESSORIES SUPPLIED

• Main Radio Unit

• Mounting Cradle

• Instruction Manual

• MC524B LCD

Microphone

• Microphone Clip

• DC Lead

• Screw Pack

If any items are missing or

damaged, please contact

your

retailer or place of

purchase

TX3345 INSTRUCTION MANUAL PAGE 3

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PAGE 4 INSTRUCTION MANUAL TX3345

FEATURES

TRANSMIT (TX)

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.

SIGNAL PROCESSING

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.

Dynamic Volume Control (DVC): Automatically compensates for variations in received audio level resulting in a constant

audio output level to the speaker.

SCANNING AND MEMORY FUNCTIONS

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.

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.

PRIVACY FUNCTIONS

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 System and Digital Coded Squelch option provides quiet channel

operation.

PHYSICAL PROPERTIES

Overvoltage Protection: Special overvoltage detection circuitry protects the radio and warns of excessive voltage

conditions by ﬂashing the display.

USER CONTROLS AND INTERFACE

Controller Microphone: Complete control of the radio from the microphone simpliﬁes installation.

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.

46397-2_TX3345_InsMan.indd 4 11/09/13 12:04 PM

GENERAL OPERATION

MC524B MICROPHONE/CONTROLLER

FUNCTION KEYS

There are several keys beneath the microphone controller’s

display that have dual functions. Their primary functions are

printed in black and their secondary functions are printed

in red.

To access the primary (black) functions

Press the key with the required function labelled in black.

e.g. To control the Squelch, brieﬂy press the

SQL

ALPHA

key.

To access the secondary (red) functions

Press the Function key

followed immediately by the

key with the required function labelled in red.

NOTE: If the secondary key is not pressed within 10

seconds the

key selection will time-out.

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.

Channel Up

Push-To-Talk (PTT) Skip/Call

Channel Down

Menu/

F Key

Power Key/

Monitor

Quiet/

Duplex

Squelch/

ALPHA

SCAN/

OS/GS

Squelch level/

Priority channel

Microphone

Volume Up

Volume Down

LCD Display

Quiet Tag

Channel Display

Transmit

Busy

SelCall RX

Scan

SelCall/Alpha Display/Signal Meter/Battery Quiet CTCSS/DCS

SelCall TX

Repeater (Duplex)

DISPLAY

TX3345 INSTRUCTION MANUAL PAGE 5

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Selecting Channels

Press the or keys to step upwards or downwards

one or more channels. Press and hold to advance through

the channels at a faster rate.

TRANSMITTING

Prior to transmitting, always check the channel is not being

used. This can be done by either listening or by checking the

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.

SQUELCH

The Squelch is used to eliminate the background noise

when there are no signals present. The TX3345 features

a preset Squelch system. The Squelch sensitivity has been

factory set to provide optimum performance in most

environments, however the sensitivity can be altered by the

user if required, to suit varying environmental situations.

The Squelch can be opened or closed by pressing the

SQL

ALPHA

key. When the Squelch is open, the receiver’s background

noise can be heard and is displayed. When the Squelch

is closed, the receiver remains quiet when there are no

signals present but an incoming signal will override the

Squelch and be heard in the speaker.

To open the Squelch

Brieﬂy press the

SQL

ALPHA

key. A low beep will be heard. If

there are no signals present you will hear the receiver’s

background noise.

To close the Squelch

Brieﬂy press the

SQL

ALPHA

key again. A high beep will be heard

and the receiver will become quiet.

NOTE: If an incoming signal is very weak and is close to the

minimum Squelch level, it may become broken or ‘chopped’

by the Squelch action. To prevent this, simply open the

Squelch to allow the signal to be heard clearly. Alternatively

you can reduce the Squelch sensitivity as described below.

SQUELCH SENSITIVITY

The sensitivity of the Squelch to incoming signals can be set

to suit your operating environment. In quiet rural locations

a low setting will allow the weakest signals to be received

while still keeping the radio quiet between transmissions. In

city locations, a higher setting might be needed to ensure

the Squelch remains closed when subjected to the higher

interference levels often encountered in high density areas.

The TX3345 has nine (9) preset Squelch sensitivity settings

labelled SQL-1 to SQL-9. The minimum Squelch setting

(SQL-1) is the most sensitive and will allow the Squelch to

open on very weak signals. SQL-9 is the maximum setting,

requiring 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 LVL

PRI 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

LVL

PRI key to return to normal operation.

NOTE: The Squelch level can also be adjusted within the

Menu.

PAGE 6 INSTRUCTION MANUAL TX3345

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The Menu provides a convenient way to customise your

radios settings. The following Menu options are available.

ITEM

FUNCTION AVAILABLE

SETTINGS

SQL Adjust Squelch Level SQL--1 TO SQL--9

CTCSS Set CTCSS or DCS Code CTCOF

CTC01 -> CTC50

DC001 -> DC104

LIGHT Adjust Display Brightness See Display

COLOR Adjust Display Colour See Display

WHITE Adjust Colour Saturation See Display

S-METER/

BATT

Display S-Meter or Battery

Voltage on the LCD

S-MET / BATT

BEEP Adjust Key Beep-Tone

Volume

VOL--0 ->

VOL--9

DVC Activate/ Deactivate the

Dynamic Volume Control

DVCOF / DVCON

To use the Menu

Press and hold the

key until the radio beeps. ‘SQL’

will be displayed indicating the ﬁrst Menu item (Squelch

setting mode) is selected.

Brieﬂy press the

key to cycle through the Menu items.

Press the or keys to adjust the selected Menu

item.

When ﬁnished, press and hold the

key to exit the

Menu or wait until the Menu times out.

To adjust the Squelch sensitivity from the Menu

1. Press and hold the

key for several seconds. The

radio will enter Menu mode and ‘SQL’ will be displayed.

2. Press the or keys to adjust the Squelch value.

3. When your adjustment is complete, brieﬂy press the

key to return to normal operation.

BACKLIGHTING

The Liquid Crystal Display and keys are backlit for easy

viewing at night. The backlight remains on while the radio

is switched on. The backlighting brightness, colour and

saturation are all fully adjustable for personal preference.

To adjust the Backlighting:

1. Press and hold the

key for several seconds. The

radio will enter Menu mode and ‘SQL’ will be displayed.

2. Press the

key repeatedly until ‘LIGHT’ is displayed.

3. Press the or keys to adjust the backlight

brightness.

4. Press the

key brieﬂy. ‘COLOR’ is displayed.

5. Press the or keys to adjust the backlight

colour. The full spectrum of colours is available.

6. Press the

key brieﬂy. ‘WHITE’ is displayed.

7. Press the or keys to adjust the whiteness or

colour saturation of the selected backlight colour from

full colour to white (no colour).

8. To exit, press and hold the

key or wait for the

Menu to time out.

TIP: For the deepest colour range, reduce the WHITE

setting.

KEY BEEPS

The key beeps act as conﬁrmation of your key presses.

You can adjust the volume level of the beeps as follows.

1. Press and hold the

key for several seconds. The

radio will enter Menu mode.

2. Press the

key repeatedly until ‘BEEP’ is displayed.

3. Press the or keys to adjust the beep volume

from 0 (silent) to 9 (loud).

4. To exit, press and hold the

key or wait for the

Menu to time out.

TX3345 INSTRUCTION MANUAL PAGE 7

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SIGNAL METER/BATTERY METER

The TX3345 includes a digital signal strength meter that

shows the relative strength of incoming signals on the

display. The meter displays signal strengths in values

from 0 (very weak) to 9 (very strong). Signals that exceed

strength 9 are shown as 9+

The TX3345 can also be set to display a battery meter

instead of the signal meter. The battery meter displays the

voltage of the connected power source with a resolution of

0.1 V. The Signal Meter is selected by default.

To switch between Signal Meter and Battery Meter:

1. Press and hold the

key for several seconds. The

radio will enter Menu mode.

2. Press the

key repeatedly until ‘S-MET’ (S Meter) or

‘BATT’ (Battery) is displayed.

3. Press the or keys to select the required

option.

4. To exit, press and hold the

key or wait for the

Menu to time out.

PRIORITY CHANNEL

The Priority Channel feature allows you to store one

channel 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. Brieﬂy press the

key then press and hold the

LVL

PRI key. The selected channel will ﬂash followed by

a high beep as the channel is stored.

To recall a Priority Channel

Brieﬂy press the

key then brieﬂy press the LVL

PRI

key. The radio will switch straight to the selected Priority

Channel. Any active functions (such as Scanning or Quiet)

will be cancelled.

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 TX3345 allows you to select Duplex operation indi-

vidually on each channel.

To select Duplex:

1. Select the required channel 1-8 or 41-48.

2. Brieﬂy press the

key then press the

QUIET

DUP

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

QUIET

DUP

key.

will disappear from the display accompanied by

a low beep.

Vehicle

Simplex/Duplex Range Comparison

Simplex

Repeater

operation

Channel 31

Channel 1

Repeater

Station

Channel 1

Channel 31

Vehicle

PAGE 8 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 8 11/09/13 12:04 PM

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

DYNAMIC VOLUME CONTROL (DVC)

The modulation level of signals heard on the UHF CB band

often vary considerably resulting in noticeable differences in

received audio volume between stations. In the past, users

have compensated for this by adjusting the volume control

for each incoming signal. However with the introduction

of 80 channel narrowband transmissions, the diversity

in received audio volume has increased even further.

The TX3345’s Dynamic Volume Control is designed to

automatically compensate for these variations in received

audio level to provide a constant audio output level to the

speaker.

To select the Dynamic Volume Control:

1. Press and hold the

key to enter the Menu.

2. Press the

key repeatedly until DVCxx is displayed.

3. Press the or keys to select DVCOF (Dynamic

Volume Control Off) or DVCON (Dynamic Volume

Control On).

4. When ﬁnished, press and hold the

key or wait for

the Menu to time out.

CTCSS & DCS

CTCSS (Continuous Tone Coded Squelch System) and DCS

(Digitally Coded Squelch) are Squelch quieting systems that

allow several groups of users to share the same channel

without disturbing each other. There are three optional tone

sets available comprising 38, 50 or 104 codes.

CTCSS and DCS systems apply a continuous low-level

low frequency tone to your transmission with a matching

decoder at the receiver to control your radio’s Squelch. With

CTCSS or DCS enabled, the channel remains quiet to all

incoming signals unless they carry the correct tone. When a

transmission with the correct tone is received, the Squelch

opens and remains open for as long as the signal is present.

When the transmission ends, the channel becomes quiet

again. Transmissions that do not use the correct tone will

not be heard.

The TX3345 allows CTCSS or DCS to be enabled or disabled

on selected channels and the CTCSS/DCS tone you select

will be used for all CTCSS/DCS enabled channels in your

radio.

CHOOSING THE CTCSS OR DCS TONE

Choosing which tone to use will probably be dependent on

the other radios you talk to. If you talk to others outside

your group who already use CTCSS or DCS tones, you will

need to select the tone set and frequency that matches

theirs. The TX3345 supports CTCSS 50 and CTCSS 38 tone

sets as well as 104 DCS tones. If the users you talk to don’t

currently use CTCSS or DCS you can make your own choice.

Vehicle

TX3345 INSTRUCTION MANUAL PAGE 9

46397-2_TX3345_InsMan.indd 9 11/09/13 12:04 PM

There is no difference in performance between the different

tone sets.

If using CTCSS you can chose either the 50 tone set or the

38 tone set. GME radios traditionally use the 50 tone set,

however the 38 tone set is also included for compatibility

with other radios.

To switch between the 50 and the 38 tone / set:

1. Switch the radio off.

2. Press and hold the

SQL

ALPHA

key while switching the radio

on again.

3. CTC50 or CTC38 will be displayed brieﬂy to indicate the

selected tone set.

TO SELECT A CTCSS OR DCS TONE

NOTE: When selecting tones, CTCSS tones are preﬁxed with

‘CTC’ and DCS tones are preﬁxed with ‘DC’. Please refer to

the CTCSS/DCS table later in this manual for a list of tone

numbers and their associated frequencies.

1. Press and hold the

key until the radio beeps.

2. Brieﬂy press the

key repeatedly until ‘CTCxx’ or

‘DCxxx’ is displayed (where xx represents a tone number

in the CTCSS or DCS Tone Frequency Chart).

3. Press the or keys to scroll through the tone

list and select the required CTCSS or DCS tone. CTCSS

tones are grouped in the lower half of the list while DCS

tones are grouped above the CTCSS tones.

4. If you wish to view the CTCSS frequency or DCS tone

instead of the table number, brieﬂy press the LV L

PRI key.

To return to the table code, brieﬂy press the LVL

PRI

key again.

5. To disable CTCSS or DCS tones altogether scroll to the

bottom of the list and select ‘CTCoF’.

6. To store the setting, press and hold the

key until

the radio beeps or wait for it to time out.

ENABLING CTCSS/DCS ON A CHANNEL

Once a CTCSS or DCS tone has been selected, it can be

enabled on individual channels.

1. Press the or keys to select the required

channel.

2. Press and hold the

SQL

ALPHA

key. A high beep will be heard

and the (CTCSS) or (DCS) will appear indicating

that the ‘Silent’ mode has been activated on that

channel.

You may activate CTCSS or DCS on as many channels

as you wish except channel 5 which is designated for

emergency use.

DISABLING CTCSS/DCS ON A CHANNEL

1. Press the or keys to select the required

channel. The or icon will be visible indicating

that the ‘Silent’ mode is currently enabled on that

channel.

2. Press and hold the

SQL

ALPHA

key. A low beep will be heard

and the or icon will disappear indicating that the

‘Silent’ mode has been disabled on that channel.

MONITORING THE CHANNEL

It is useful to be able to temporarily open your radio’s

Squelch to allow you to listen for signals from other CTCSS/

DCS users outside your group. Because their CTCSS/DCS

tone is different to yours, your Squelch would normally

remain closed, preventing you from hearing them. You can

use the

SQL

ALPHA

key to open the Squelch and listen to the

channel to check that it is clear before transmitting. This will

help prevent you from accidentally transmitting over the top

of others.

To monitor the channel

Brieﬂy press the

SQL

ALPHA

key. If there are no signals present,

you will hear the usual hiss of an empty channel. Press

the

SQL

ALPHA

key again to restore the Squelch to its previous

setting.

PAGE 10 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 10 11/09/13 12:04 PM

SCANNING

The TX3345 has a SCAN function that allows groups of user

programmable channels to be scanned for signals. Channels

can be scanned at 20 channels per second. When a signal

is found, scanning will pause on that channel to allow the

signal to be heard, then resume scanning when the channel

is clear again.

SCAN GROUPS

The TX3345 features two scan groups by default - Open

Scan and Group Scan.

Open Scan

Allows any of the installed channels to be scanned for

activity. 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.

e.g. Scanning channels 1-8 in Open Scan.

Group Scan

Also allows any of the installed channels to be scanned for

activity, but in addition, it 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 take precedence over any signals received on

the other channels.

e.g. Scanning channels 1-8 with Priority Channel 20 in

Group Scan.

SELECTING A SCAN GROUP

To pre-select a scan group

The radio is initially set to Open Scan mode. To toggle

between Scan Groups, press the

key followed by the

SCAN

OS/GS

key. ‘Open’ or ‘Group’ will be displayed brieﬂy to

conﬁrm your selection.

PROGRAMMING SCAN CHANNELS

Your TX3345 is supplied with all 80 UHF CB channels

programmed into the Open Scan memory. Any channels

not needed, can be removed if required. The Group Scan

memory is empty by default and you will need to add

channels to it before use.

To add or remove channels from either scan

memory

1. Ensure that the radio is not already scanning. If it is,

brieﬂy press the

SCAN

OS/GS

key to cancel the scan function.

2. Ensure you have the required scan group selected (Open

Scan or Group Scan.

3. Select the required channel by using the or

keys

• If is visible to the right of the channel number, the

selected channel is already in the scan memory.

• If is not visible, then the selected channel is not in

the memory.

4. To add or remove the selected channel, press and hold

the

SCAN

OS/GS

key for a few seconds until a beep is heard.

5. Repeat step 3 & 4 to add or remove other channels in

the scan memory.

To start scanning

To begin scanning, brieﬂy press the

SCAN

OS/GS

key. A high beep

will be heard, the icon will animate on the display and

the radio will begin scanning. In addition the selected scan

group will be displayed below the channel number.

NOTE: If there is only one channel programmed into the

Open Scan memory or none in the Group Scan memory, a

long low beep will be heard when you press the

SCAN

OS/GS

key

and the command will be ignored.

To stop scanning

To cancel the scan, brieﬂy press the

SCAN

OS/GS

key. A low beep

will be heard and the icon will disappear from the

display.

1 - 2 - 3 - 4 - 5 - 6 - 7 - 8

1 - 2 - 3 - 4 - 20 - 5 - 6 - 7 - 8 - 20

TX3345 INSTRUCTION MANUAL PAGE 11

46397-2_TX3345_InsMan.indd 11 11/09/13 12:04 PM

OPEN SCAN MODE

Before scanning, select your preferred working channel

using the or keys. Your working channel is the

default channel your radio will transmit on when the PTT is

pressed while scanning.

Scanning in Open Scan Mode

If a busy channel is found, the scan will pause on the

channel to allow you to hear the signal and will resume

scanning once the channel has been clear for 5 seconds.

While the scan is paused, the icon will continue to

animate on

the display to indicate that the scan function is still active.

To talk on your working channel while the radio is scanning,

simply press the PTT. Scanning will pause and your radio

will switch to your working channel allowing you to transmit

and receive on that channel. When your conversation has

ﬁnished and the channel has been clear for 5 seconds,

scanning will resume.

If the scan pauses on any busy channel and you wish to talk

on that channel, simply wait for a break in the conversation

and press the PTT. The busy channel now becomes your

working channel, replacing your previous working channel.

Once your conversation has ﬁnished and the channel has

been clear for 5 seconds, scanning will resume.

If you need to use your Priority Channel while your radio

is scanning (perhaps for an urgent call or an emergency),

brieﬂy press the

key followed by the LVL

PRI key. The

radio will jump straight to the Priority Channel and the Scan

mode will be cancelled.

If you wish to remain on a busy channel, brieﬂy press the

SCAN

OS/GS

key while the scan is paused on that channel. The

radio will exit Scan mode and remain on the busy channel.

GROUP SCAN MODE

Before scanning, store your preferred Priority Channel.

Scanning in the Group Scan Mode

When scanning, the radio scans all the channels

programmed into the Group Scan memory, with the Priority

Channel being scanned after every fourth channel.

If a signal appears on the Priority Channel – at any time

– the receiver will switch straight to it and will stay there

for as long as the Priority Channel is busy. During this time

you can transmit on the Priority Channel in the usual way.

Once there has been no activity for 5 seconds, the radio will

resume scanning the other channels.

If a signal appears on one of the other channels, scanning

will pause on that channel and will remain there while

the channel is busy, as long as there are no signals on the

Priority Channel. During this time the receiver will continue

to check the Priority Channel for signals every 2 seconds,

resulting in a series of small ‘breaks’ in the reception of the

paused channel. Once there has been no activity on any

channel for 5 seconds, the radio will resume scanning.

If your radio is paused on a busy channel and you wish to

remain there, brieﬂy press the

SCAN

OS/GS

key. The radio will exit

the Scan mode and remain on the busy channel.

NOTE: The radio will no longer be monitoring the Priority

Channel (unless it is the same as the busy channel).

To resume scanning, press the

SCAN

OS/GS

key again.

To transmit on the Priority (working) Channel AT ANY TIME

while scanning, simply press the PTT key. The radio will

switch straight to the Priority Channel. When you have

ﬁnished your conversation and there has been no further

activity on the Priority Channel for 5 seconds, the radio will

resume scanning the other channels.

To go directly to the Priority Channel, brieﬂy press the LVL

PRI

key. The radio will exit Scan mode.

PAGE 12 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 12 11/09/13 12:04 PM

AUTO SKIP

If while scanning, a busy channel becomes a nuisance by

constantly causing the scan to pause, you can skip over it by

pressing the SKIP button (or the or keys) while

the radio is paused on that channel. This will temporarily

remove the busy channel from the scan for 30 seconds to

allow it time to become clear. The radio will then resume

scanning from the next channel in the sequence. After 30

seconds the skipped channel becomes active in the scan

again. You can use this method to temporarily remove

multiple busy channels from the scan if required.

If the unwanted busy channel continues to delay the scan

after the 30 second skip period has elapsed, you can

completely remove that channel from the scan group for the

duration of the current scan session by holding the

SCAN

OS/GS

key

while the radio is paused on that channel. The ‘nuisance’

channel will be removed from the scan group for the

duration of that scan session. To restore the channel, simply

stop and restart the scan session using the

SCAN

OS/GS

key. You

can use this method to remove multiple busy channels from

the current scan session if required.

NOTE: In Group Scan mode you can also treat the Priority

Channel as a nuisance channel and remove it from

the scan session, but if you do, you will no longer be

monitoring the Priority Channel while scanning. However

if you press the PTT you will still be taken straight to

the Priority Channel when required to converse on that

channel. After your conversation has ﬁnished the scan will

continue without the Priority Channel included.

QUICK CHANNEL SELECT

To quickly review or edit channels stored in the current scan

memory, brieﬂy press the

key then press the

or keys to manually step through the stored scan

channels. Only those channels that have been stored in the

current scan group memory will be displayed. During this

time ‘F’ will remain on the display to conﬁrm you are still in

‘Quick Select’ mode. To exit this mode, press the

key

again or wait 10 seconds for the function to time out.

USING TWO GROUP SCAN OR TWO OPEN

SCAN MODES

If you prefer, the TX3345 can be re-programmed to have

two Group Scan modes or two Open Scan modes instead of

one of each.

Your TX3345 can be retailer programmed to convert the

Group Scan mode into a second Open Scan mode and vice

versa. If you would prefer to have two Group Scan or two

Open Scan modes, you should contact your GME retailer

to arrange for this feature to be enabled (when using two

Group Scan modes the Priority Channel will be the same

channel for both scan groups).

When the second Open or Group Scan mode is enabled, the

resulting two Scan modes become Scan 1 and Scan 2.

To select the required Scan Mode

Press the

key followed by the

SCAN

OS/GS

key. ‘Scan 1’ or

‘Scan 2’ will be displayed to conﬁrm your selection. When

enabled, the two scan modes will be identical in operation.

NOTE: Enabling or disabling the second Open or Group Scan

mode is not a user selectable option. Once enabled by your

GME retailer, the changed Scan mode becomes a permanent

part of the TX3345’s features and replaces the standard

Scan selection. If you ﬁnd later that you need the original

Group or Open Scan function re-enabled, you will need to

return your TX3345 to your retailer for re-programming.

SELECTIVE CALLING

Your TX3345 has a Selective Calling system known as

SelCall that operates like a telephone. Your radio is pre-

programmed with its unique SelCall Identiﬁcation Number.

If this number is called by another radio, your TX3345 will

beep to alert you. If you do not want to hear any other

activity while waiting on a channel, you can select the Quiet

mode. Your radio will then remain quiet to all incoming

signals until your SelCall number is called.

TX3345 INSTRUCTION MANUAL PAGE 13

46397-2_TX3345_InsMan.indd 13 11/09/13 12:04 PM

Your TX3345 will allow you to store up to ten (10) most

frequently called SelCall numbers, with each number being

labelled for easy identiﬁcation.

SELCALL IDENTIFICATION NUMBER (IDENT)

Your radio is factory programmed with its own unique

SelCall Identiﬁcation Number (Ident). This number identiﬁes

your radio from others. Your radio’s own SelCall Ident

will be displayed for a few seconds in the lower left of the

channel display when you ﬁrst turn your radio on. You will

need to make this Ident known to others who may need to

call you using SelCall.

NOTE: Although your radio is factory-programmed with a

unique SelCall Ident, you can change your Ident to another

number if required (see SelCall Memories on next page).

SELCALL IDENT LABELS

When storing SelCall Idents, you can add labels to each

one to make it easier to identify whose Ident you are

recalling. In addition, if an incoming SelCall matches one

of your stored Idents, the label can be displayed instead

of the Ident. To add or display labels, your radio must be

in the ALPHA mode. To switch between ALPHA mode and

Numeric Mode, brieﬂy press the

key followed by the

SQL

ALPHA

key. ‘ALPHA’ or ‘NUMER’ will be displayed brieﬂy to

the lower left of the channel display to indicate the selected

mode.

THE QUIET MODE

Your radio can be set to monitor signals on a busy channel

but remain quiet unless it receives its own SelCall Ident.

In this way, you won’t be disturbed unless someone calls

you. When your SelCall Ident is received, the Quiet mode

is deactivated and an alarm sounds to alert you to the call.

You can then converse normally on the channel. To use the

Quiet mode, refer to the Quiet mode section further below.

Note that activating the Quiet mode is not mandatory for

SelCall operation. You can still use SelCall on any channel

whether the Quiet mode is set or not.

TIP: The Quiet mode overrides the normal Squelch system

to ensure that the radio remains quiet even when the

channel is busy. When Quiet mode is set, you may see the

icon appear on the display indicating the channel is

being used, however, nothing will be heard in the speaker

unless someone transmits your SelCall Ident. Quiet mode

can be applied to individual channels so that some channels

remain quiet while others are open to all incoming signals.

USING SELCALL

NOTE: The ACMA requires that cumulative SelCall

transmissions should not exceed 3 seconds in any 60

second period. To meet this requirement with your TX3345

you should not send any more that 3 SelCall transmissions

per minute.

ENTERING A SELCALL IDENT

1. Press the CALL button. is displayed, along with the

last sent or received SelCall Ident. If an ALPHA label is

displayed you will need to press

then

SQL

ALPHA

switch to Numeric Mode.

2. Press and hold the LVL

PRI key until the radio beeps.

The right-hand digit of the SelCall Ident will ﬂash.

3. Press the or keys to select the required

number in the ﬂashing digit position.

4. Brieﬂy press the LVL

PRI key again to select the next

digit position.

5. Repeat steps 4 and 5 to enter all 5 digits as required.

The SelCall number is now ready to send.

6. Press and hold the CALL button. A long beep will be

heard and the radio will transmit the SelCall Ident.

PAGE 14 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 14 11/09/13 12:04 PM

NOTE: If the call is not sent within 10 seconds of entering

the last Ident digit the Call function will time-out and the

radio will return to normal mode. To exit the mode without

sending the SelCall brieﬂy press the CALL button.

CALL ACKNOWLEDGE

If your SelCall transmission is successful, the radio you

called should respond with an ‘acknowledge’ signal –

usually two quick beeps. This will conﬁrm to you that the

radio you called is now alerting its user to your signal.

SELCALL MEMORIES

Your radio is ﬁtted with a ‘Call’ memory, an ‘ID’ memory

and 10 user programmable storage memories as follows:

1. ‘Call’ memory – always holds your last-sent SelCall

Ident making it easy to resend it.

2. ‘Id’ memory – holds your radio’s own SelCall Ident.

You should only select this memory location if you need

to change your radio’s factory programmed SelCall Ident.

3. User programmable storage memories – can be

used to store and recall frequently called SelCall Idents.

Memories are labelled ‘C0’ to ‘C9’.

To store a SelCall Ident in memory

1. Brieﬂy press the CALL button. is displayed along

with the last sent or received SelCall Ident.

2. Press the or keys to select the required

memory location ‘C0’ to ‘C9’ (to change your radio’s

own SelCall Ident, select ‘Id’). If an ALPHA label is

displayed you will need to press

then

SQL

ALPHA

switch to Numeric Mode.

3. Press and hold the LVL

PRI key until the radio beeps. The

right-hand digit of the SelCall Ident will ﬂash.

4. Press the or keys to select the required

number in the ﬂashing digit position.

5. Brieﬂy press the LVL

PRI key again to select the next digit

position.

6. Repeat steps 4 and 5 to enter all 5 digits as required.

7. Now press and hold the LVL

PRI key. The entire Ident will

ﬂash for a few seconds then the radio will beep as the

new Ident is stored.

Recalling SelCall Idents from memory

1. Brieﬂy press the CALL button. is displayed along

with the last sent or received SelCall Ident.

2. Press the or keys to select the required Ident

memory in locations ‘C0’ to ‘C9’.

3. Press and hold the CALL button to send the Ident.

Changing your radio’s own SelCall Ident

1. Ensure your radio is in Numeric Mode (press

then

SQL

ALPHA

as required until ‘NUMER’ is displayed).

2. Brieﬂy press the CALL button. is displayed along

with the last sent or received SelCall Ident.

3. Press the key. ‘Id’ will be displayed along with

your radios own SelCall Ident.

4. Press and hold the LVL

PRI key until the radio beeps.

The right-hand digit of the SelCall Ident will ﬂash.

5. Press the or keys to select the required

number in the ﬂashing digit position.

6. Brieﬂy press the LVL

PRI key again to select the next

digit position.

7. Repeat steps 5 and 6 to enter all 5 digits as required.

8. Now press and hold the LVL

PRI key. The entire Ident will

ﬂash for a few seconds then the radio will beep as the

new Ident is stored.

LABELLING YOUR SELCALL IDENTS

You can label each SelCall Ident using a 5 character name

to make it easier to identify callers. If an incoming SelCall

matches one of those in your radio’s memory, the label can

be displayed instead of the SelCall Ident.

TX3345 INSTRUCTION MANUAL PAGE 15

46397-2_TX3345_InsMan.indd 15 11/09/13 12:04 PM

To select the ALPHA display mode

Brieﬂy press the

key followed by the

SQL

ALPHA

key.

‘ALPHA’ or ‘NUMER’ will be displayed for 2 seconds on the

lower left of the display to indicate the selected mode.

TIP: The normal channel display may give no indication of

which display mode is selected. The selected more will only

become obvious when displaying SelCall Idents.

Entering and storing a SelCall Label

NOTE: You must ﬁrst store the required Ident in memory (as

described above) before you can add an ALPHA label to it.

1. Brieﬂy press the CALL button. will be displayed

along with the last sent or received SelCall Ident.

2. Press the or keys to select the required Ident

memory in locations ‘C0’ to ‘C9’.

3. Brieﬂy press

then

SQL

ALPHA

to select the ALPHA mode.

ALPHA will be displayed brieﬂy.

4. If the selected memory’s ALPHA label is empty, ‘- - - - -’

will be displayed, otherwise it will display the last ALPHA

label that was programmed into that memory.

5. Press and hold the LV L

PRI key until the radio beeps. The

left-hand position of the Alpha label will ﬂash.

6. Press the or keys to select the required

character in the ﬂashing position then brieﬂy press the

LVL

PRI key again to select the next position.

The following characters are available:

A B C D E F G H I J K

L M N O P Q R S T U V

W X Y Z

0 1 2 3 4 5 6 7 8 9

SPACE * -

7. Repeat step 6 to enter up to 5 characters as required.

8. Now press and hold the LVL

PRI key. The entire Alpha

label will ﬂash for a few seconds then the radio will beep

as the label is stored.

Repeat the steps above to add ALPHA labels to other

SelCall Idents currently stored in memory.

To exit the mode, brieﬂy press the CALL button (or

simply wait 10 seconds and the Call function will time out).

The radio will return to normal operation.

To display the Alpha labels of incoming SelCalls, the radio

should be left in Alpha mode. Any incoming SelCall that

does not match those in the memory will display -NEW-. To

display the SelCall Ident of that caller, brieﬂy press

then

SQL

ALPHA

to return to the Numeric Mode.

RECEIVING SELCALLS

When your radio receives its SelCall Ident, an alarm will

sound to alert you to the call and the symbol will be

displayed along with the SelCall Ident or ALPHA label of

the caller. Initially the alarm will beep urgently at 2 beeps

per second, then, if the call is not answered, it will slow

to around 1 beep every 3 seconds. It will then continue to

beep indeﬁnitely until you cancel it.

To return the call

Press and hold the CALL button for a few seconds until

the radio beeps. The callers SelCall will be sent back to the

caller.

To cancel the alarm

Brieﬂy press the PTT switch. The alarm will be cancelled

and the channel will be open for normal communication.

You can now talk on the channel in the usual way.

QUIET MODE

The Quiet Mode mutes the receiver to prevent incoming

signals from being heard in the speaker until your SelCall

Ident is received. This allows you to monitor a busy channel

for personal calls without being disturbed by unwanted

signals. Once your SelCall Ident is received, the Quiet

Mode is cancelled and all incoming signals are heard in the

speaker.

PAGE 16 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 16 11/09/13 12:04 PM

Setting up QUIET mode

To setup the Quiet mode you must ﬁrst ‘tag’ the channels

that you want to stay Quiet, then activate the Quiet Mode.

Once the Quiet mode is activated, the tagged channels will

remain quiet to all incoming signals unless your SelCall Ident

is received. Channels that are not tagged will remain open to

all signals and will operate normally.

To tag individual channels for QUIET operation

1. Select the required channel.

2. Press and hold the

QUIET

DUP

key until the radio beeps. ‘Q’ will

appear to the left of the channel number indicating the

selected channel is now tagged for Quiet operation.

To remove the QUIET tag from individual channels:

1. Select a channel that has been tagged for Quiet operation.

‘Q’ will be displayed.

2. Press and hold the

QUIET

DUP

key until the radio beeps. ‘Q’ will

disappear indicating this channel is no longer tagged for

Quiet operation.

Activating QUIET mode

1. Select a channel that has been tagged for Quiet operation

(you cannot activate the Quiet mode unless a ‘tagged’

channel is selected). ‘Q’ will be displayed on that channel.

2. Brieﬂy press the

QUIET

DUP

key. will appear on the display.

The Quiet mode is now activated and all channels that were

tagged for Quiet operation will now be operating in the Quiet

mode.

Deactivating QUIET mode

1. Select any channel that has been tagged for Quiet

operation. ‘Q’ and will be displayed on that channel.

2. Brieﬂy press the

QUIET

DUP

key. will disappear from

the display and all channels that were tagged for Quiet

operation will now operate normally again.

Receiving signals in QUIET mode

• If a normal signal is received on an Open channel (one

that is not tagged with ‘Q’) the signal will be heard in the

usual way.

•If a normal signal is received on a Quiet channel, the

icon will be visible showing that the channel is busy, but no

sound will be heard from the speaker.

• If your SelCall Ident is received on any channel – Open or

Quiet – the Quiet mode will be cancelled and the alarm will

beep to alert you to the call. In addition, the caller’s Ident

or ALPHA label will be displayed. All channels will now be

open for normal transmission and reception.

If you wish to respond to the caller using SelCall, press and

hold the CALL button until the radio beeps. The caller’s Ident

will be transmitted back to them causing the alarm in their

radio to be activated.

To cancel the alarm on your radio, brieﬂy press the PTT.

To return your radio to the Quiet mode, brieﬂy press the

QUIET

DUP

key. will re-appear on the display.

SCANNING IN QUIET MODE

The radio will allow you to scan while the Quiet mode is

active. Using this feature you can monitor a group of Quiet

channels or a combination of Quiet and Open channels.

To scan in the QUIET mode

1. Brieﬂy press

then

SCAN

OS/GS

to select the required scan

group (Open or Group scan).

2. Store the required channels in the selected scan memory

as described under the Scanning section.

3. From those channels, select the ones you wish to remain

Quiet and tag each one for Quiet operation (press and

hold the

QUIET

DUP

key).

4. Select a tagged channel and activate the Quiet mode

(brieﬂy press the

QUIET

DUP

key).

5. To start scanning press the

SCAN

OS/GS

key. The radio will begin

scanning and the and ﬂashing icons will be

TX3345 INSTRUCTION MANUAL PAGE 17

46397-2_TX3345_InsMan.indd 17 11/09/13 12:04 PM

PAGE 18 INSTRUCTION MANUAL TX3345

displayed indicating that the radio is scanning in the Quiet

mode.

Receiving signals while scanning in QUIET mode

•If a normal signal is received on an open channel,

scanning will pause while the channel is busy and will

resume scanning 5 seconds after the channel becomes

clear. (If you were scanning in Group Scan mode, the

radio may switch between the open channel and the

Priority channel – this is normal).

•If a normal signal is received on a Quiet channel but your

SelCall Ident is not detected, the signal will be ignored

and scanning will continue.

•If a signal containing your SelCall Ident is received on

any channel – Open or Quiet – both scanning and Quiet

modes will be cancelled and the receiver will stay on that

channel. In addition, the alarm will beep to alert you to the

call and the callers Ident or ALPHA label will be displayed.

The channel will now be open for normal transmission and

reception.

TIP: To ensure reliable SelCall detection when scanning in

the Quiet mode, it is recommended that you restrict the

number of channels in the Scan group to 4 or less.

GROUP CALLING

The SelCall system includes a Group Call function which allows

you to call up to 1000 radios simultaneously. This could be

useful in an emergency situation where you may need to

transmit a message to a large number of radios in your group.

By default your radio is factory set to allow up to 10 radios

to be called at once. If required you can arrange for your dealer

to re-program this option to allow 100 or 1000 radios to be

called. The following description assumes the default Group

Call setting of 10 radios.

The Group Call function works by allowing you to enter a

special ‘group code’ into the last digit positions of the SelCall

Ident you are sending. The ‘group code’ appears as an ‘A’

when displayed in the radio. When this ‘group code’ is

received, it substitutes for all other numbers in that position.

As long as the ﬁrst 4 digits of the SelCall you are sending

match those of the radios you are calling, their SelCall alarm is

activated as if their full 5 digit SelCall Idents had been received.

To achieve this, the 10 radios you are calling must be

programmed with sequentially numbered SelCall Idents.

e.g. 14530, 14531, 14532, 14533.. -->, 14539

Transmitting the SelCall Ident 14531 will only activate the

alarm in the radio with the SelCall Ident of 14531. However

transmitting 1453A will activate the alarms in all radios with

Idents 14530 through 14539 (a total of 10 radios).

If the radios in your ﬂeet do not have sequentially numbered

SelCall Idents and you want to make use of this function, you

will need to re-program the SelCall Idents in your radios.

Sending a Group Call Ident

1. Press the CALL button. is displayed along with the

last sent or received SelCall Ident. If an ALPHA label is

displayed you will need to press

then

SQL

ALPHA

switch to Numeric Mode.

2. Press and hold the LVL

PRI key until the radio beeps. The

right-hand digit of the SelCall Ident will ﬂash.

3. Press the or keys to select ‘A’ in the ﬂashing digit

position. This is the special code that will create the Group Call.

4. Brieﬂy press the LVL

PRI key again to select the next digit position.

5. Continue entering the other 4 digits as required. The

SelCall number is now ready to send.

6. Press and hold the CALL button. A long beep will be

heard and the radio will transmit the SelCall Ident.

Programming group calls for 100 radios (when this is

enabled in your radio) is identical except that you will need

to select ‘A’ for the last 2 digits (eg. 123AA). For 1000 radios

you will need to select ‘A’ for last 3 digits (eg. 12AAA).

e.g.

Sending Ident 145AA will call 100 radios with Idents 14500 ->

14599

Sending Ident 14AAA will call 1000 radios with Idents 14000 ->

14999

46397-2_TX3345_InsMan.indd 18 11/09/13 12:04 PM

You can also arrange to send SelCalls to every tenth radio

by setting the second digit to A.

e.g. Sending Ident 145A5 will call radios 14505, 14515, 14525,

14535.. --> 14595

Call acknowledge in Group mode

There is no call acknowledge when sending group calls.

This is to prevent all the radios in your group from trying to

respond to your SelCall transmission at the same time.

Storing Group Call Idents

Group Call Idents can be stored in memory in the same way

as a standard SelCall Ident.

Receiving Group Calls

Receiving a Group Call is identical to receiving a normal

SelCall except that the alarm sound is a LOW tone beep

instead of the normal HIGH tone beep. The Callers’ Ident or

ALPHA Name appears on the display in the usual way.

INSTALLATION

The TX3345 main unit is supplied with a slim, U-shaped

mounting cradle. The cradle can be screwed or bolted in

any convenient location in your vehicle (under or above

the dash, on the centre console, etc.) using the mounting

slots provided in the cradle. The TX3345 contains a built-in

speaker, and should be installed in a convenient location in

the vehicle’s cabin as the radio’s loud speaker. Alternatively

it can be installed in a less audible location and an

extension speaker used instead.

The LCD Controller Microphone comes complete with

a mounting clip. Its small size and light weight design

allows it to be mounted in almost any convenient position

accessible to the driver.

When installing the radio, avoid mounting it close to

heaters or air conditioners. Screw the LCD Controller

Microphone’s clip to a ﬁrm surface. Fit the TX3345 into the

cradle and tighten the gimbal knobs. Place the LCD Control-

ler Microphone in its mounting clip. Finally, plug the LCD

Controller Microphone into the front panel of the TX3345

and the power and antenna leads to the sockets provided

on the rear of the radio.

ANTENNA INSTALLATION

It is essential to select a good quality, high efﬁciency, 477

MHz antenna. A poor quality antenna or one not designed

for the speciﬁc frequency band you are using will give very

poor performance.

GME have a wide range of suitable 477 MHz UHF CB

antennas to suit most installations and applications. We

recommend contacting your local GME retailer for advice.

Connect to the antenna cable to the rear antenna socket

using a PL259 coaxial connector.

Noise Suppression

The inherent design of FM transceivers result in a high

level of resistance to ignition and electrical interference.

However in some installations it may be necessary to

take additional steps to help reduce or eliminate noise

interference. During installation, try to route the DC battery

leads, the antenna lead or any accessory wires away from

the engine compartment, ignition or alternator wiring. If the

noise continues, try ﬁtting a suppression kit in which case

we recommend you consult an auto electrician for advice

speciﬁc to your installation.

Higher frequency electrical interference caused by electric

motors can be suppressed directly at the motor terminals.

Fitting the LCD controller microphone

Slide microphone

into the mounting clip

MC524

TX3345 INSTRUCTION MANUAL PAGE 19

46397-2_TX3345_InsMan.indd 19 11/09/13 12:04 PM

Mounting the cradle

The mounting bracket can be oriented with the arms

extending either forward or backwards to adjust the

position of the front panel with reference to the mounting

point

Fitting the radio

Fit radio into cradle and tighten gimbal knobs.

Once the orientation of your radio is conﬁrmed, you can

ﬁt the GME model label. Simply remove the backing tape

and press into the recess on the front panel.

Fitting the microphone

The microphone uses an 8 pin plug and socket.

To ﬁt the microphone:

1. Position the microphone plug so the plastic tab faces

downwards, and press the plug into the socket until

it ‘clicks’.

2. Gently slide the rubber boat towards the hole

surrounding the socket until it is ﬂush with the front

panel.

Plastic tab

Label

PAGE 20 INSTRUCTION MANUAL TX3345

46397-2_TX3345_InsMan.indd 20 11/09/13 12:04 PM

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