GME TX670TP User Manual

2 watt handheld UHF CB radio

I N S T R U C T I O N M A N U A L

cO NTe NT s

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

Possible Issues ....................................................................3

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

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

RADIO CONTROLS......................................................................4

LCD Display .......................................................................5

POWERING THE RADIO ..............................................................5

GENERAL OPERATION ................................................................6

Power On/Off .....................................................................6

Adjusting the Volume .........................................................6

Display Lighting ..................................................................6

Receiving Signals ................................................................7

Transmitting .......................................................................7

Duplex/Monitor Key ............................................................7

Scan/Memory Key ..............................................................8

Mode/Key-Lock Function .....................................................9

1. CTCSS Code Selection .....................................................9

2. Transmitter Power .........................................................10

3. VOX Settings ................................................................10

4. Dual Watch Settings ......................................................10

5. Squelch Settings ...........................................................11

6. Roger Beep Tone Settings .............................................11

7. Button Beep Tone Setting ..............................................11

8. Call Alarm Selection .....................................................11

CTCSS TONE FREQUENCIES ......................................................12

UHF CB OPERATING FREQUENCIES ..........................................13

SPECIFICATIONS ......................................................................14

GME CONTRACT WARRANTY AGAINST DEFECTS......................14

Ac cess OR Ies

SUPPLIED

• 2 x TX670 2/1 watt UHF
handheld radios with
exible antenna

• 2 x 3.6 V Ni-MH rechargable
battery packs

• 240 V AC adapter

• Instruction manual

OPTIONAL

• Speaker microphone

• Hands-free ear microphone

• Neck lanyard

• Vehicle cigarette lighter
trickle charger.

• Leather case

IM PO RTAN T

READ ALL INSTRUCTIONS carefully and completely before

operating your radio and retain this manual for future reference.

NEVER connect the radio to a power source other than the

supplied battery. This may damage your product.

DO NOT place your radio in front of a vehicle airbag.

DO NOT use your radio with a damaged antenna.

DO NOT attempt to modify your radio in any way.

ALWAYS charge your radio at normal room temperature.

ALWAYS switch off your radio where notices restrict the use

of two-way radio or mobile telephones.

ONLY use GME approved rechargeable batteries with the

supplied charger.

AVOID exposing your radio to water. It is not waterproof.

AVOID storing or charging your radio in direct sunlight.

AVOID storing or using your radio where temperatures

are below -20°C or above +60°C.

PA GE 2 INSTRUC TI ON M AN UAL TX670 TP

WAR NIN G - sA Fe TY IN FOR MATI ON

The TX670 is a radio transmitting device.

• When transmitting, keep the antenna more than 25 mm from
any part of the head or body.

• Do not transmit near electrical blasting equipment or in
explosive atmospheres.

• Do not allow children to operate a radio transmitter unsupervised.

IM PO RTAN T I NFO RM ATI ON

cO Nce RNI NG UH F c B R ADI O

The use of the Citizen Band radio service is licensed in Australia by
the ACMA Radiocommunications (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
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

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.

Te leM eT RY cHA NNe ls

ACMA regulations have allocated channels 22 and 23 for telemetry
only applications and have prohibited the transmission of speech
on these channels. Consequently the TX670 has a transmit-inhibit
applied to channels 22 and 23.

TX670 TP INSTRUC TI ON M AN UAL PA GE 3

In the event that 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.

Fe ATU Res

• Microprocessor Controlled Frequency Synthesiser: Allows

user programmable control of scanning, channel memories and
selected feature options.

•

Programmable Scan Function: Scans up to 80 UHF
CB channels.

• In-built CTCSS: User selectable Continuous Tone Coded Squelch

system for quiet channel operation.

• 2 watt/1 watt RF Power: When transmitting in close range you

can conserve battery power by using the Low Power setting.

• Individually Programmable Duplex Function: User

selectable for those individual repeater channels in your area.

• Power-Save Feature: Sleeps during periods of inactivity.

• Keypad Lock: Prevents accidental button presses.

• Backlit LCD: For night viewing.

Push-to­talk (PTT)

• Calling Tone/Roger Beep: Alerts you to incoming calls.

• Dual Watch: Monitors two channels simultaneously.

• VOX: Voice activated transmit for hands free operation.

Belt
Clip

RA DI O c ONT ROl s

LED

Mode/
Lock
Key

Duplex/
Monitor

Channel
Down

Antenna

Speaker

Volume
On/Off

LCD

External
Speaker
Mic

Scan/
Memory

Mic

Channel
Up

Duplex/
Monitor

Battery
Compartment

PA GE 4 INSTRUC TI ON M AN UAL TX670 TP

LCD DISPLAY

1 2 3 4 5 6 7

1 Receiver Busy Icon:

Appears

when receiving.

2 Transmit Icon:

Appears when

transmitting.

3 Memory Icon:

Appears when
the selected channel is stored
in the Scan memory.

4 Scan Indicator Icon:

Appears
when SCAN is enabled and
the radio is scanning.

5 Button Beep Tone Icon:

Appears when the button
beep conrmation tone is
selected.

6 Roger-Beep Tone Icon:

Appears when the Roger­Beep tone is enabled.

7 Battery Level Icon:

Indicates
battery charge level. Flashes
when battery is almost empty.

8

Dual Watch Icon: Appears
when Dual Watch mode is
active.

1213141516

9 High Power Icon:

when High transmitter power
is selected.

10 Duplex Icon:

Duplex communication has
been enabled.

11 Key-Lock Icon:

the keypad is locked.

12 Monitor Icon:

Monitor function is activated.

13 Power Save Icon:

when the radio is in the
power save mode.

14 Voice Activated Transmission

(VOX) Icon:

the VOX mode is activated.

15 CTCSS Tone:

selected CTCSS tone
(from 00 – 38) on the
selected channel.

16 Channel Display:

the channel number in use.

8
9

10

11

Appears

Indicates that

Appears when

Appears when

Appears

Appears when

Displays the

Indicates

PO WeR ING TH e R AD IO

Your TX670 is powered by a Ni-MH rechargeable battery pack. If
left unused, the batteries will discharge within a few months. If you
have not used your TX670 for some time, you will need to recharge
your battery pack before use.

Installing the Batteries

Battery installation is more convenient when the belt clip is
removed. To do this, release the spring clip and slide the belt
clip downward and away from the radio body.

1. Press the centre-top area of the battery cover and
slide downwards.

2. Install the rechargeable battery pack in the direction
indicated on the pack until it ‘clicks’ into place.

3. Replace the battery cover and belt clip.

Spring Clip

Belt
Clip

This side
faces up

Battery
Cover

TX670 TP INSTRUC TI ON M AN UAL PA GE 5