GME TX4400 User manual

TX4400 INSTRUCTION MANUAL PAGE 1
INSTRUCTION MANUAL
UHF CB RADIO
TX4400

PAGE 2 INSTRUCTION MANUAL TX4400
TABLE OF CONTENTS
GENERAL ..................................3
FEATURES .................................3
BASIC OPERATION .......................4
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . 4
Adjusting the Volume . . . . . . . . . . . . . . . . . . . . . . . 4
LCD Indicators .............................4
Squelch ..................................5
Monitoring Function . . . . . . . . . . . . . . . . . . . . . . . . 5
Selecting Channels . . . . . . . . . . . . . . . . . . . . . . . . . 5
Back Lighting ............................. 5
Duplex Switch ............................5
Priority Channel ...........................6
Signal Strength Meter . . . . . . . . . . . . . . . . . . . . . . . 6
SCANNING ................................6
Scan Groups ..............................6
Selecting a Scan Group . . . . . . . . . . . . . . . . . . . . . . 6
Programming Scan Channels . . . . . . . . . . . . . . . . . . 6
To Start Scanning ..........................7
Scanning in the Open Scan Mode . . . . . . . . . . . . . . 7
Ending the Scan ...........................7
Using the Group Scan Mode . . . . . . . . . . . . . . . . . . 7
Setting up the Group Scan . . . . . . . . . . . . . . . . . . . . 7
Scanning in the Group Scan Mode . . . . . . . . . . . . . 7
Ending the Scan ...........................8
Using the Group Scan as a Second Open Scan . . . . . 8
PROGRAMMING RECEIVE-ONLY CHANNELS . . 8
Activating the 'Programming' Mode . . . . . . . . . . . . 8
Programming the Receive-Only Channels . . . . . . . . . 9
Storing the Selected Frequency . . . . . . . . . . . . . . . . 9
Editing your Programmed Receive Channels . . . . . . 9
Disabling a Receive-Only Channel . . . . . . . . . . . . . . 9
Scanning ................................9
Receiving Selcalls on your Receive-Only Channels . 10
CTCSS .................................10
SELECTIVE CALLING .......................10
What is Selcall ............................10
Selcall Identification Number (Ident) . . . . . . . . . . . 10
Selcall Ident Names . . . . . . . . . . . . . . . . . . . . . . . . 10
The QUIET Mode (Q) . . . . . . . . . . . . . . . . . . . . . . . 10
Selcall Memories ..........................10
Entering, Storing and Sending Selcalls . . . . . . . . . . 11
Call Acknowledge .........................11
Storing Selcall Idents . . . . . . . . . . . . . . . . . . . . . . . 11
Recalling Selcall Idents from the Memory . . . . . . . . 11
Recalling Fast Dial Memories . . . . . . . . . . . . . . . . . . . . . 12
Naming your Selcall Idents . . . . . . . . . . . . . . . . . . . 12
Displaying ALPHA Names . . . . . . . . . . . . . . . . . . . 12
Entering and Storing a Selcall Name . . . . . . . . . . . 12
Receiving Selcalls . . . . . . . . . . . . . . . . . . . . . . . . . 12
Displaying the caller’s Ident or Name . . . . . . . . . . . 13
The Selcall Alert ...........................13
Cancelling the Selcall Alert . . . . . . . . . . . . . . . . . . . 13
Call Acknowledge Signal . . . . . . . . . . . . . . . . . . . . 13
QUIET MODE .............................. 13
Setting up the QUIET mode . . . . . . . . . . . . . . . . . . 13
Tagging individual channels for QUIET operation . . 13
Removing the QUIET Tag from Individual Channels . 13
Activating the QUIET Mode . . . . . . . . . . . . . . . . . . 13
De-activating the QUIET Mode . . . . . . . . . . . . . . . . 14
Receiving Signals in the QUIET Mode . . . . . . . . . . . 14
Scanning in the QUIET Mode . . . . . . . . . . . . . . . . . 14
Receiving Signals while Scanning in the QUIET Mode . . 14
GROUP CALLING ..........................14
Programming and Sending Group Calls . . . . . . . . . 15
Sending the Selcall Ident . . . . . . . . . . . . . . . . . . . . 15
Call Acknowledge in Group Mode . . . . . . . . . . . . . 15
Storing Group Call Idents . . . . . . . . . . . . . . . . . . . . 15
Receiving Group Calls . . . . . . . . . . . . . . . . . . . . . . 15
PAGER (TRANSPOND) MODE ...............15
Overview ...............................15
Selecting the Paging Channel . . . . . . . . . . . . . . . . 15
Setting the Paging Ident . . . . . . . . . . . . . . . . . . . . 15
Monitoring a Single channel while in Page Mode . . 16
Scanning in the Page Mode . . . . . . . . . . . . . . . . . . 16
Using Open Scan ..........................16
Using Group Scan .........................16
Using the QUIET Mode . . . . . . . . . . . . . . . . . . . . . 16
Returning a Call in the PAGE Mode . . . . . . . . . . . . 17
Deactivating the Page Mode . . . . . . . . . . . . . . . . . 17
CTCSS ....................................17
Monitor Function ..........................17
Selecting the required CTCSS Tones . . . . . . . . . . . . 17
Enabling the CTCSS function on a channel . . . . . . . 18
CTCSS Tone Frequency Chart . . . . . . . . . . . . . . . . . 18
HOW TO DISABLE FEATURES ............... 18
REPEATERS ................................18
INSTALLATION .............................19
Fitting the microphone . . . . . . . . . . . . . . . . . . . . . 20

TX4400 INSTRUCTION MANUAL PAGE 3
Rear microphone connection . . . . . . . . . . . . . . . . . 20
DC Power Connection . . . . . . . . . . . . . . . . . . . . . . 21
High Voltage Warning . . . . . . . . . . . . . . . . . . . . . . 21
Antenna Connection . . . . . . . . . . . . . . . . . . . . . . . 21
SPECIFICATIONS ..........................22
Warranty ...............................24
GENERAL
Your GME TX4400 radio is Australian designed and built
and is one of the most advanced UHF Citizen Band radios
available.
The TX4400 combines the very latest in electronic
hardware with the most up-to-date computer aided
design and manufacturing techniques to produce an
extremely versatile mobile radio with outstanding
specifications and performance.
The TX4400's DIN sized case allows it to be conveniently
installed into a dashboard or console and its strong diecast
aluminium chassis makes it the most robust radio of its
kind. With just three rotary controls and five touch keys,
the TX4400's extensive features are easy to operate.
FEATURES
• Microprocessor Controlled Frequency Synthesiser:
Allows user programmable control of scanning, Selcall,
CTCSS, channel memories and selected feature options.
• Permanent Memory: Retains all user settings in non-
volatile memory even when the power has been removed.
• Programmable Scan Function: Scans up to 40 user
programmable channels with both Group and Open scan
functions available.
• User Programmable Receive-Only Channels: Use
the TX4400's front panel controls to program up to 20
of your own receive-only channels in the 465-485 MHz
frequency range.
• In-Built CTCSS: User selectable Continuous Tone Coded
Squelch System provides quiet channel operation (can be
enabled or disabled on individual channels).
• In-Built Selcall: Selective Calling of individuals or
groups with four or five digit ANI and fully user-adjustable
5 tone transmitted Selcall Ident. Also allows alphanumeric
naming of up to 10 Idents for easier caller identification.
• Front Facing Speaker: Projects the sound forward for
greater clarity.
• 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.
• 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.
• Large High Contrast Liquid Crystal Display: Fully
detailed LCD with large characters provides a visual
indication of the selected channel and all selected
functions at a glance. LED backlit for viewing at night
with DIM function.
• Quiet Mode: Selectable on individual channels,
the Quiet mode prevents incoming signals from being
heard on selected channels unless preceded by your
Selcall code.
• Unique Page (Transpond) mode: Allows you to
transfer an incoming Selcall to another radio if your
radio is unattended.
• Feature Disabling Function: Allows Scanning, Squelch,
Duplex, Priority, Channel selection and CTCSS features
to be enabled or disabled to make the radio simpler to
operate.
• Overvoltage Protection: Special overvoltage detection
circuitry protects the radio and warns of excessive voltage
conditions by flashing the display.
• Microphone Connection: Optional rear connecting
microphone facility allows for flexible installation.
• 20 Additional Channels: Room for an additional 20
Dealer programmable 'receive-only' channels.
• Australian Made: The TX4400 has been totally
designed and manufactured in Gladesville NSW to meet
the demanding needs of the Australian community.
THE FOLLOWING ITEMS ARE INCLUDED WITH YOUR TX4400
• TX4400 Radio
• Mounting Cradle
• Instruction Manual
• MC509B 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 TX4400
Duplex Mode.
Function: ALPHA
Rotate for Channel Selection
Push for Priority Channel Display
Rotate for Volume
Rotate for Squelch
Press for Monitor
Function
SCAN Selector.
Function: DIM
OPEN/GROUP Scan.
Function: PAGE
QUIET Mode.
Function: SILENT
Press first to access
Functions
FRONT PANEL CONTROLS
Channel Display
Selcall memory Location
QUIET Tag
Transmit
Indicator
Scan
Indicator
Duplex
Indicator
Selcall
Call Mode
CTCSS
Indicator
Selcall Ident Display
ALPHA name Display
QUIET Mode
Channel
Memory
Indicator
Receive
Indicator
BASIC OPERATION
Rotate the Volume control clockwise past
the ‘click’ to turn the TX4400 ON. Adjust the
volume control for a comfortable listening
level. If no sound is heard, rotate the Squelch
knob fully counter-clockwise to temporarily
un-mute the radio. You can now adjust the
volume by listening to the receiver's background
noise. When finished, rotate the Squelch knob
clockwise again to re-mute the radio
LCD INDICATORS
ADJUSTING THE VOLUME

TX4400 INSTRUCTION MANUAL PAGE 5
SQUELCH
The Squelch is used to eliminate any annoying background
noise when there are no signals present. The TX4400
features a continuously variable Squelch control system
allowing the user to set the Squelch for optimum
performance.
To adjust the Squelch, first rotate the Squelch control
fully counter-clockwise until the background noise is
heard and the ‘BUSY’ indicator is displayed on the LCD.
Now advance the Squelch control slowly clockwise until
the noise is just extinguished and the ‘BUSY’ indicator
disappears. At this point the receiver will remain quiet while
no signals are present, but an incoming signal will override
the Squelch and be heard in the speaker. As the Squelch
control is advanced further clockwise the Squelch action is
progressively increased and stronger incoming signals are
needed to overcome it.
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 turn the
Squelch control fully counter-clockwise to open the squelch,
which will allow the signal to be heard clearly.
MONITORING FUNCTION (MON)
When using CTCSS, press the Squelch knob to temporarily
open the Squelch to allow you to listen for signals on the
channel. For a full description of the MON function refer to
the CTCSS section.
SELECTING CHANNELS
Select the required channel by rotating the channel selector
knob. Rotate the knob clockwise to select higher channels
and counter-clockwise to select lower channels. The selected
channel is displayed in large numbers on the LCD.
BACK LIGHTING
The Liquid Crystal Display and function keys are backlit for
easy viewing at night or in low light situations. The LED
back lighting is on at all times while the TX4400 is
turned on.
To DIM the backlighting, briefly press the F key, followed
by the DIM key. Repeat the sequence to restore the
backlighting to full brightness.
DUPLEX SWITCH
Duplex operation allows the TX4400 to transmit on a
different frequency to that which it receives. This allows
operation through any repeater stations in your area.
Repeaters automatically re-transmit your signal over a
wider area, providing greatly increased range.
The Duplex function operates only on channels 1 - 8.
When Duplex is selected on one of these channels, the
TX4400 receives on that channel but actually transmits
30 channels higher.
Channel
Selected
1 2 3 4 5 6 7 8
Receive
Channel
1 2 3 4 5 6 7 8
Transmit
Channel
31 32 33 34 35 36 37 38
The TX4400 allows you to select duplex operation on
individual channels. This is particularly useful in country
areas where there may only be one or two repeaters. The
unused repeater channels can then be used for normal
simplex or direct radio-to-radio communications.
To select Duplex on individual channels:
1. Select the required channel 1 - 8.
2. Briefly press the DUP key. ‘DUP’ will appear on the
display accompanied by a high beep.
To remove Duplex from a channel:
1. Select the required channel 1 - 8. ‘DUP’ will be visible on
the display.
2. Briefly press the DUP key. ‘DUP’ will disappear from the
display accompanied by a low beep.
MON