GME TX650 User manual

INSTRUCTION MANUAL
COMPACT
UHF RADIOS
TX650

PAGE 2 INSTRUCTION MANUAL TX650
CONTENTS
The TX650 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.
WARNING: SAFETY INFORMATION
SAFETYINFORMATION..........................................2
IMPORTANT ..................................................3
EQUIPMENT AND ACCESSORIES SUPPLIED . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BATTERIESANDCHARGING ......................................4
CONTROLS...................................................4
CONTROLDESCRIPTIONS........................................6
BASICRADIOOPERATION........................................8
TROUBLESHOOTING...........................................15
OPERATINGFREQUENCIES......................................16
CTCSS......................................................17
TECHNICAL SPECIFICATIONS.....................................18
WARRANTY .................................................19

TX650 INSTRUCTION MANUAL PAGE 3
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.
ALWAYS replace the accessory jack cover (if applicable) when the jack is not
in use.
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.
EQUIPMENT AND ACCESSORIES
• 2 x TX650 radio (with internal battery)
• Instruction Manual
• Smart Twin Charger with Adaptor
• 2 x Ear Microphone
• 2 x Neck Lanyard
IMPORTANT

PAGE 4 INSTRUCTION MANUAL TX650
BATTERIES AND CHARGING
FITTING THE BATTERIES
The TX650 uses an internal Lithium Ion battery which has been pre-installed.
For removal or replacement please contact your local Dealer. Unauthorised
attempts to remove or replace the battery will void your warranty and may
damage your radio.
CHARGER INSTALLATION
Connect the power adaptor to the mains power supply and connect the adaptor’s
power plug to the charger cradle. The LED’s will not be lit.
BATTERY CHARGING
Insert your radios in the charging compartment until they click into place.
The charger LED’s will light RED and the radios will start charging. If the LEDs
do not light RED or they blink in RED and GREEN, remove and refit the radios
into the cradle again until the LEDs light RED.
The charging time for a fully discharged battery is typically 12 to 15 hours.
When the battery is fully charged the charger LED’s will light green.
CONTROLS
LEDs
Power Adaptor
• Input: 240 V AC
• Output: 9 V DC
Charging Cradle

TX650 INSTRUCTION MANUAL PAGE 5
RADIO CONTROLS
Antenna
Duplex
Volume Up/
Mode Adjust
Speaker
Mode
Scan / Lock
Monitor / Lamp
Push-To-Talk
(PTT)
Power On / Off
LCD
Volume Down/
Mode Adjust
Neck Lanyard
Attachment
Earphone Jack

PAGE 6 INSTRUCTION MANUAL TX650
CONTROL DESCRIPTIONS
POWER BUTTON
Press and hold the POWER button for about 2 seconds. You will hear a
confirmation tone to indicate the radio is on. To turn the radio off, press and hold
the POWER button for about 2 seconds.
PUSH-TO-TALK (PTT) BUTTON
Press and hold this button to speak (transmit). Release the button to listen
(receive). You can only communicate with other UHF CB radios when their
channel and CTCSS code settings are the same as yours.
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1. Receiving/Busy Icon
2. Transmit Icon
3. Lock Icon
4. Monitor Icon
5. Key Tone Icon
6. Hi Transmit Power Icon
7. Scan Icon
8. Power Save Icon
9. Battery Warning Icon
10. Channel Display
11. CTCSS Code Icon/Display
12. Dual Watch Icon
13. Roger Beep Icon
14. VOX Icon
15. Room Monitor Icon
16. Duplex Icon
LCD DISPLAY

TX650 INSTRUCTION MANUAL PAGE 7
UP BUTTON
Pressing this button will increase the volume. In Menu mode this button is used
to adjust the mode setting.
DOWN BUTTON
Pressing this button will decrease the volume. In Menu mode this button is used
to adjust the mode setting.
MODE BUTTON
Press this button briefly to enter the Menu setting mode. Press again (repeatedly)
to step through the menus and select different setting options.
MONITOR/LAMP BUTTON
Press and hold this button for about 2 seconds to open or close the Squelch.
When the squelch is open and no signals are present a background hiss will be
heard. Press this button briefly to switch the backlight lamp on or off. The lamp
will stay alight for 5 seconds then will switch off automatically
DUPLEX BUTTON
Press this button to select Duplex mode on channels 1 - 8.
Duplex operation allows the TX650 to transmit on a different frequency to that
which it receives. This allows operation through repeater stations in your area.
Repeaters automatically re-transmit your signal over a much wider area,
providing greatly increased range. The Duplex mode only works on channels
1 - 8. With Duplex selected, your TX650 actually transmits 30 channels higher
than it receives.
To activate the Duplex modes
Select a duplex channel (1 - 8) then briefly press the DUP button. When Duplex
mode is selected, ‘DUP’ appears on the display on channels 1 - 8.
1. Receiving/Busy Icon
2. Transmit Icon
3. Lock Icon
4. Monitor Icon
5. Key Tone Icon
6. Hi Transmit Power Icon
7. Scan Icon
8. Power Save Icon
9. Battery Warning Icon
10. Channel Display
11. CTCSS Code Icon/Display
12. Dual Watch Icon
13. Roger Beep Icon
14. VOX Icon
15. Room Monitor Icon
16. Duplex Icon

PAGE 8 INSTRUCTION MANUAL TX650
SCAN/LOCK BUTTON
Press this button briefly to activate or deactivate the scanning where appropriate.
Press and hold this button for 2 seconds to activate or deactivate the keypad lock.
BASIC RADIO OPERATION
The Citizens Band Radio Service operates on a shared channel basis. This
means that other users and groups may be using any channel (and CTCSS code
combination). To communicate with other UHF CB radios, all units must be
switched to the same channel (and CTCSS code if activated).
If the combination you have selected is already in use please make an
alternative selection.
1. Switch on your radio by pressing the POWER button for 2 seconds.
2. Check and if necessary change the channel (and CTCSS code settings).
(see Mode and Radio Features Explained).
3. To speak, hold the radio upright, about 10 cm from your mouth and press
the PTT button. Speak slowly and clearly towards the radio. Release the
PTT button when you have finished speaking.
You will hear messages from other radios within range, with the same channel
and CTCSS code setting (when enabled). The appropriate icon will appear in the
radio display when you receive or transmit a message.
MENU MODE
The Menu Mode allows you to program user preferences, activate features
and use advanced functions.
To access the Menu mode
Press the MODEbutton briefly. Each press of the MODE button steps the radio
sequentially through the available functions.
The radio display indicates the current function. The present setting and
associated icon will flash. Use the or buttons to change the setting.
Press the PTT or wait for 5 seconds to store your choice. If you do not
press any key for 5 seconds your radio will exit the menu and return to
stand by automatically.

TX650 INSTRUCTION MANUAL PAGE 9
MENU FUNCTIONS
Display Functions Settings
‘Flashing’ Change Channel 01 - 40
CTC Change Privacy Code 01 - 38, oF
Po Set TX Power Lo, HI
dh Select Dual Watch Mode 01 - 40, oF
Uo Select Hands Free (VOX) Lo, HI, oF
rb Activate Rodger Beep on / oF
bP Activate Key Beep on / oF
bb Activate Room Monitor on / oF
CA Change Call Tone 01 - 03
VOLUME LEVEL
There are 7 volume levels to suit your personal preference. To adjust the volume
level, press the or button. ‘UL’ with be displayed along with a volume level
setting between 1 and 7. A beep tone will also indicate an increase or decrease
in volume.
Note: The volume level cannot be adjusted when Scan or Dual Watch modes
are selected.
CHANNELS
This radio communicates on 38 of the available 40 UHF CB channels (channels 22
and 23 are reserved for telemetry use and are disabled for voice transmissions).
To communicate with other UHF CB radios, all units must be switched to the
same channel.
To change the radio channel
Press the MODEbutton. The channel number will flash. Use the or buttons
to select the desired channel. Press the PTT button or wait for 5 seconds to store
your choice.

PAGE 10 INSTRUCTION MANUAL TX650
CTCSS CODES
The TX650 is fitted with 38 different CTCSS codes (see code chart on page 17).
You can select or change the current CTCSS code via the MODE Menu. If the
other radios you are communicating with do not have CTCSS codes, set your
TX650’s CTCSS code to oF.
Note: CTCSS codes do not prevent other radio users from hearing your
conversation. They simply allow you to ignore messages from radios that are
using a different CTCSS code to you.
To change the CTCSS code on the selected channel
Press the MODE button repeatedly until ‘CTC’ flashes. Use the or buttons
to select the desired code. Select oF to turn CTCSS off. Press the PTT button or
wait for 5 seconds to store your choice. The CTCSS icon will appear when a CTCSS
code is enabled on the selected channel.
TX POWER SETTING
The TX650 has two transmitter power settings - High and Low. When you are
transmitting in close range to other radios you can conserve battery power by
using the Low power setting. Select the High power setting only when you need
increased range.
To change the power setting
Press the MODEbutton repeatedly until ‘Po’ is displayed. Use the or
buttons to select the desired power setting. Select HI for high power or Lo for
Low power. Press the PTT button or wait for 5 seconds to store your choice. The
‘HI’ icon will appear when the High power setting is selected.
DUAL WATCH
Dual Watch mode allows you to monitor two channels - a primary channel and
Dual Watch channel. When a signal is received on either channel the unit will
pause for 5 seconds before resuming the Dual Watch.
To activate the Dual Watch mode
First select your primary channel using the or buttons. To select the Dual
Watch channel press the MODE button repeatedly until ‘dh’ appears. Use the

TX650 INSTRUCTION MANUAL PAGE 11
or buttons to select the desired Dual Watch channel. Press the PTT button
or wait for 5 seconds to store your choice and activate the Dual Watch.
When Dual Watch is active, the display will alternate between the primary and
Dual Watch channels and the Dual Watch icon will appear.
To deactivate Dual Watch mode
Press the SCAN button.
Pressing the PTT button while receiving a signal in Dual Watch mode will transmit
on the currently displayed channel.
Pressing the PTT button when no signal is present will transmit on the primary
channel.
Note: The MODE button will not function while the Dual Watch mode is selected.
HANDS FREE (VOX) MODE
When Hands Free (VOX) mode is selected the radio will automatically transmit
when the microphone detects your voice (or other noise). It can be used with the
internal microphone or an appropriate audio accessory.
To avoid accidental operation and reduce the effect of background noise there
are two microphone sensitivity settings - High and Low.
To activate or deactivate the Hands Free (VOX) mode
Press the MODEbutton repeatedly until ‘Uo’ appears. Use the or buttons to
change the sensitivity level (HI or Lo) . Press the PTT button or wait for 5 seconds
to store your choice and activate the VOX mode. The VOX icon will appear when
VOX mode is active.
Repeat this process and change the sensitivity setting to oF to deactivate the
Hands Free (VOX) mode.
ROGER BEEP
The Roger Beep is a short tone that is automatically added to the end of your
transmissions to tell other users that you have finished speaking.

PAGE 12 INSTRUCTION MANUAL TX650
To activate or deactivate the Roger Beep
Press the MODEbutton repeatedly until ‘rb’ appears. Use the or buttons
to change the setting to on or oF. Press the PTT button or wait for 5 seconds to
store your choice. The Roger Beep icon will appear when Roger Beep is active.
KEY BEEP
If the Key Beep is activated, your radio will emit a confirmation tone with every
key press (excluding the PTT).
To activate or deactivate the Key Beep
Press the MODE button repeatedly until ‘bP’ appears. Use the or buttons
to change the setting to on or oF. Press the PTT button or wait for 5 seconds
to store your choice. The Key Beep icon will appear when Key Beep is active.
ROOM MONITOR
The Room Monitor is similar to Hands Free (VOX) mode, except that it ignores
short, brief noises and uses only the highest microphone sensitivity level. When
Room Monitor mode is activated, the radio will transmit for 15 seconds when it
detects a continuous noise for 5 seconds or more. If the noise persists the radio
will continue to transmit for another 15 seconds.
To activate the Room Monitor mode
Press the MODEbutton repeatedly until ‘bb’ appears. Use the or buttons
to change the setting to on or oF. Press the PTT button or wait for 5 seconds to
store your choice. The Room Monitor icon will appear when the Room Monitor
is active.
Note: The Squelch must be closed for the room monitor to operate correctly.
IMPORTANT: The Room Monitor function is not a replacement for regularly
checking the safety and security of children. If you move out of communication
range you will not hear transmissions.

TX650 INSTRUCTION MANUAL PAGE 13
CALL ALERT
To alert others to your call you can send a Call Alert Melody. There are three
different call Call Alert Melodies available.
To change the melody
Press the MODE button repeatedly until ‘CA’ appears. The presently selected Call
Melody will be heard. Use the or buttons to change the melody. Press the
PTT button or wait 5 seconds to store your choice.
To send the Call Alert
Double click the PTT button. The Call Melody will be transmitted on the selected
channel and will also be heard in your radio’s speaker.
MONITOR
The Squelch function is used to check for activity on the current channel
regardless of CTCSS code settings. It also sets the squelch to minimum which will
allow weaker signals to be heard.
To activate or deactivate the Monitor
Press and hold the MONITOR/LAMP button (below the PTT button) for
about 2 seconds. The Monitor icon will appear when the Monitor is active.
When Monitor is activated and there are no signals present, it is normal to hear
background static noise.
DISPLAY BACKLIGHT
This display backlight will illuminate for approximately 5 seconds whenever the
MONITOR/LAMP button is briefly pressed. To switch this light off before the
automatic turning off, press this button briefly again.
KEYLOCK
To avoid changing the channel or function settings accidentally this radio has a
Key Lock function.
To activate or deactivate the Key Lock
Press and hold the SCAN button for about 2 seconds. The Key Lock icon will
appear when the Key Lock is active. The Power, PTT, Monitor and Volume
adjustment are unaffected by the Key Lock.

PAGE 14 INSTRUCTION MANUAL TX650
CHANNEL SCAN
The Channel Scan can be used to find users on other channels.
To activate or deactivate the Channel Scan
Press the SCAN button briefly. The Scan icon will appear when the Channel Scan
is active.
The radio will scan through all 40 channels searching for signals. If your radio
detects a valid signal the scan will pause for 5 seconds.
If you press the PTT button when the scan is paused, the radio will transmit on
the paused channel. Scanning will resume after approximately 15 seconds. Press
the or buttons to resume scanning immediately.
If you press the PTT button during scanning, the radio will return to your original
channel. Scanning will resume after approximately 15 seconds.
Press the SCAN button again to deactivate the Scan function.
Note: The MODE Menu and Volume adjustments are disabled whilst scanning,
however, pressing or will select the direction of the scan. To increase battery
life, use the Scan Mode sparingly.
CTCSS CODE SCAN / DECODE
This radio has CTCSS code scan function which can be used to determine the
CTCSS Code currently in use on the selected channel.
To activate the CTCSS code scan
Press the MODEbutton repeatedly until the CTCSS code number flashes, then
press the SCAN button briefly. The Scan icon will appear.
The radio will scan through all 38 CTCSS codes. If your radio detects a valid signal
containing a CTCSS code, the scan will pause for 5 seconds. If you press the PTT
button when your radio detects a signal, the radio will transmit using the same
CTCSS code as the signal that was detected during Scan.
Scanning will resume after approximately 15 seconds. Press the or buttons
to resume scanning immediately. If you press the PTT button during scanning,
the radio will return to your original CTCSS code. Scanning will resume after
approximately 15 seconds.

TX650 INSTRUCTION MANUAL PAGE 15
The MODE Menu and Volume or are disabled whilst scanning.
To increase battery life, use the Scan Mode sparingly.
BATTERY WARNING INDICATOR
The Battery Warning icon indicates when the battery level is low and the
battery needs recharging. If necessary, refer to the instructions to recharge the
battery. Operating the radio with a low battery will reduce performance.
POWER SAVE
To conserve battery power the radio will automatically enter Power Save mode
after a short period of inactivity. The Save icon will appear to indicate that Power
Save is active. There is no user setting for Power Save.
TROUBLESHOOTING
If you experience problems with your TX650 first check the battery warning
icon as low batteries can cause problems such as no transmission, weak
reception and poor sound quality.
Check the manual and radio display to ensure that functions (such as VOX,
Scan or DW) have not been activated by accident.
In case of further difficulty please consult your Dealer.

PAGE 16 INSTRUCTION MANUAL TX650
Channel Frequency (MHz) Channel Frequency (MHz)
1 476.425 (1) 21 476.925
2 476.450 (1) 22 476.950 (3)
3 476.475 (1) 23 476.975 (3)
4 476.500 (1) 24 477.000
5 476.525 (1) (2) (6) 25 477.025
6 476.550 (1) 26 477.050
7 476.575 (1) 27 477.075
8 476.600 (1) 28 477.100
9 476.625 29 477.125
10 476.650 30 477.150
11 476.675 (4) 31 477.175 (1)
12 476.700 32 477.200 (1)
13 476.725 33 477.225 (1)
14 476.750 34 477.250 (1)
15 476.775 35 477.275 (1) (2) (6)
16 476.800 36 477.300 (1)
17 476.825 37 477.325 (1)
18 476.850 38 477.350 (1)
19 476.875 39 477.375
20 476.900 40 477.400 (5)
OPERATING FREQUENCIES
(1) Repeater Channels
(2) Emergency use only
(3) Telemetry/Selcall use only. Voice
Transmission is inhibited (Class Licence 2002)
(4) Call Channel
(5) Road Channel
(6) CTCSS Not Permitted

TX650 INSTRUCTION MANUAL PAGE 17
CTCSS
No. Frequency No. Frequency No. Frequency
1 67.0 14 107.2 27 167.9
2 71.9 15 110.9 28 173.8
3 74.4 16 114.8 29 179.9
4 77.0 17 118.8 30 186.2
5 79.7 18 123.0 31 192.8
6 82.5 19 127.3 32 203.5
7 85.4 20 131.8 33 210.7
8 88.5 21 136.5 34 218.1
9 91.5 22 141.3 35 225.7
10 94.8 23 146.2 36 233.6
11 97.4 24 151.4 37 241.8
12 100.0 25 156.7 38 250.3
13 103.5 26 162.2 oF 0
(CTCSS Frequency shown in Hz)
(1) Repeater Channels
(2) Emergency use only
(3) Telemetry/Selcall use only. Voice
Transmission is inhibited (Class Licence 2002)
(4) Call Channel
(5) Road Channel
(6) CTCSS Not Permitted

PAGE 18 INSTRUCTION MANUAL TX650
General
Complies with: AS/NZS 4365:2002 for radio communications
equipment in the UHF CB and personal radio service.
Frequency Range: 476.425 - 477.400 MHz
Number of Channels: 40 (38 Voice and 2 Telemetry receive channels)
Channel Spacing: 25 kHz
Operating Mode: Simplex or half duplex
Privacy Codes: 38
Operating Temperature: - 10˚C to + 60˚C
Battery Source: Li-Ion 3.7 V DC 720 mAh rechargeable battery pack
Operating Time: 10 Hrs (Transmit 5%, Receive 5%, Standby 90%)
Transmitter
RF Output: Hi - 1 Watt Low - 0.5 Watts
Modulation: FM
Max. Deviation: ± 5 kHz
Modulation Distortion: < 5% (1 kHz 70%)
Receiver
Usable Sensitivity: > - 118 dBm
Maximum Audio Output: > 0.3 Watts maximum (8 Ohms)
Modulation Distortion: < 5% (1 kHz 70%)
Specifications are typical unless otherwise indicated and may be subject to change without
notice or obligation.
TECHNICAL SPECIFICATIONS

TX650 INSTRUCTION MANUAL PAGE 19
GME limit this warranty to the original purchaser of the equipment.
GME warrant the TX650 to be free from defects in material and workmanship
for a period of twelve (12) months from the date of purchase from their
authorised Dealer.
Should the product require servicing during this period, all labour and parts
used to effect repairs will be supplied free of charge. GME reserve the right to
determine whether damage has been occasioned by accident, misuse or improper
installation whereby the warranty would be void, including equipment which has
been damaged due to:
(a) Incorrect or reverse polarity connection to a battery or power supply or to
an incorrect supply voltage.
(b) Operation without an antenna or by connection to an antenna which has
been incorrectly installed, resulting in damage to the radio’s output circuit.
(c) Effects of water or moisture penetration.
(d) Non-factory modifications.
Procedure to be followed by claimant: In the event of a defect occurring during
the warranty period, the original Purchaser may return the defective unit along
with suitable proof of purchase date (i.e. receipt, docket, credit card slip etc.) and
a full description of the defect to the Dealer from whom the unit was purchased.
All freight charges incurred for transportation by the Dealer or GME are the
Purchaser’s responsibility.
GME AFTER SALES SERVICE
Your radio is especially designed for the environment encountered in land
applications. The use of all solid state circuitry, careful design and rigorous
testing, result in high reliability. Should failure occur however, GME maintain
a fully equipped service facility and spare parts stock to meet the customer’s
requirements long after expiry of the warranty period.
WARRANTY

TX650
Part Number: 310341 Drawing Number: 42819-2