GME TX3520 User Manual

5 watt compact fully featured UHF CB radios
I N S T R U C T I O N M A N U A L
CONTE NTS
ACCESSORIES SUPPLIED ........................................................3
INTRODUCTION ....................................................................3
IMPORTANT INFORMATION CONCERNING UHF CB RADIO ....3
FEATURES .............................................................................4
GENERAL OPERATIONS .........................................................5
TX3510/TX3520 Front Panel Controls ............................5
LCD Panel .....................................................................6
Rear Panel .....................................................................6
TX3540 Controller Microphone ......................................7
GENERAL OPERATION ACROSS ALL MODELS .......................8
Keypad Functions ..........................................................8
Volume .........................................................................9
Selecting Channels ........................................................9
Squelch .........................................................................9
Signal Meter ..................................................................9
Transmitting ..................................................................9
Time-Out Timer ............................................................10
Backlighting ................................................................10
Bandwidth Filter Settings .............................................10
Dynamic Volume Control ..............................................11
Voice Scrambler ...........................................................11
Repeaters and Duplex Mode ........................................11
Priority Channel ...........................................................12
Scanning .....................................................................13
CTCSS & DCS ..............................................................15
Selective Calling ..........................................................17
Using Selcall ................................................................17
Quiet Mode .................................................................19
Group Calling ..............................................................21
Receive (RX) Only Channels .........................................22
Configuration Menu ....................................................24
INSTALLATION ....................................................................26
General .......................................................................26
TX3510 & TX3540 Installation .....................................26
TX3520 Installation .....................................................27
Microphone .................................................................28
DC Power Connection ..................................................29
Wiring .........................................................................30
ANTENNA CONNECTION ....................................................30
NOISE SUPPRESSION ...........................................................30
DCS TONE CHART................................................................32
SPECIFICATIONS .................................................................34
SC CONTRACT WARRANTY AGAINST DEFECTS ....................35
Contacts ........................................................BACK PAGE
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ACC ESSOR IES S UPPLI ED
TX3510 TX35 20 TX35 40
TX3510 Radio TX3520 Radio TX3540 Radio
Mounting Cradle TX3520 Remote Head Controller Microphone
Instruction Manual Mounting Cradle Microphone extension lead
Microphone Instruction Manual 8 pin to 8 pin Adapter
Microphone Clip Microphone Mounting Cradle
DC Lead Microphone Clip Instruction Manual
Screw Pack DC Lead Microphone Clip
Connecting Cable DC Lead
Screw Pack Screw Pack
IN TRO DUCT I ON
Your GME TX3510/TX3520/TX3540 80 channel radio is Australian designed and built and is the most advanced UHF Citizen Band radio available. It combines the very latest in electronic hardware with the most up-to-date computer aided design and manufacturing techniques to produce an extremely compact mobile radio with outstanding specifications and performance.
Your radio is designed for unobtrusive mounting in modern vehicles. With its built-in loud speaker and extremely small size, it can be mounted in almost any convenient location.
IMPO RTANT INFO RMATI ON
CONCER NI NG UH F C B 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.
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In simple terms the same amount of spectrum is available; however,
radio transceivers can now operate in a narrower bandwidth and hence use less spectrum. These radios are generally referred to as narrowband or 12.5 kHz radios. By using 12.5 kHz channel spacing instead of 25 kHz, the 40 channels originally allocated can now be expanded to 80 channels thereby doubling the channel capacity and relieving congestion in the UHF CB/PRS band.
Original 40 channel wideband Radios will continue to operate
on the original 40 channels, however they will not be able to converse on the newer channels 41 – 80. The newer narrowband radios will be able to converse with all older 40 channel wideband radios on all channels 1 to 40 as well as the newer channels allocated from 41 to 80.
The mixing of narrowband and wideband radios in the
same spectrum can cause some possible operating issues of interference and varying levels of received volume.
POSSIBLE ISSUES
When a new narrowband radio receives a transmission from an older wideband radio the speech may sound loud and distorted – simply adjust your radio volume for best performance.
When an older wideband radio receives a signal from a new narrowband radio, the speech may sound quiet – simply adjust your radio volume for best performance.
Depending on how close your receiving radio is to another transmitting radio, there can be interference from the transmitting radio if it is using a channel adjacent to the channel you are listening to. Simply try going up or down a few channels from the currently selected channel.
The above situations are not a fault of the radio but a symptom of operating wideband and narrowband radios in the same bandwidth. This possible interference will decrease over time as the population of wideband radios ages and decreases.
Further information and updates are available from the Australian Communications and Media Authority (ACMA) at www.acma.gov.au and the Ministry of Economic Development (MED), Radio Spectrum Management at: www.rsm.govt.nz
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 your radio 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.
FE ATUR ES
Microprocessor Controlled Frequency Synthesiser:
Allows user programmable control of scanning, channel memories and selected feature options.
Full Spectrum Backlighting: User adjustable, totally
customisable colour backlight settings to match the vehicle’s dashboard lighting or drivers preference.
Digital Signal Processing: Measures, filters and
compresses them into digital format. Allows advanced RF and audio processing techniques to be applied to maximise the radio’s performance.
Advanced Signal Management (ASM): Identifies
interference caused by strong local signals on adjacent channels and prevents it from opening your squelch. ASM also minimises distortion on reception by fine tuning the receiver frequency to match that of the incoming signal. This prevents your squelch from opening to unwanted interference and ensures that incoming signals remain clear and undistorted even when they are slightly off-frequency.
Dynamic Volume Control (DVC): Automatically
compensates for variations in received audio level resulting in a constant audio output level to the speaker.
Voice Inversion Scrambler
When activated, scrambles your voice so that communications are only intelligible to others using the same scrambler technology.
Programmable Scan Function: Scans the selected UHF
CB channels with both Group and Open scan functions available.
Individually Programmable DUPLEX function: User
selectable for only those individual channels in your area that have repeaters, leaving the others free for use as extra simplex channels.
Priority Channel: A user programmable priority channel
feature allows your working channel to be instantly recalled at the press of a key.
standard analogue audio signals and converts
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High Contrast Liquid Crystal Display: Fully detailed LCD
provides a visual indication of the selected channel and all selected functions at a glance.
User Programmable Receive-Only Channels: Use the
radio’s front panel controls to program up to 95 of your own receive-only channels (in 5 banks of 19 channels) within the 403-520 MHz frequency range.
In-Built CTCSS & DCS: User selectable Continuous Tone
Coded Squelch and Digital Coded Squelch System option provides silent channel operation on individual channels.
In-Built Selcall with QUIET Mode: Provides selective
calling of individuals or groups with fully user-adjustable 5 tone transmitted Selcall Ident. Also allows alphanumeric naming of up to 10 Idents for easier caller identification.
User selectable Wide/Narrow Receive Filter
GE NERA L OPER ATION S
TX3510/TX3520 FRONT PANEL CONTROLS
Dual Microphone Input Sockets: Front and Rear
Microphone sockets to match most installation needs. Both sockets can be used independently or simultaneously.
Over Voltage Protection: Special overvoltage detection
circuitry protects the radio and warns of excessive voltage conditions by flashing the display.
Surface Mount Technology: The very latest surface
mount component types, design and assembly techniques and quality control procedures are used to ensure the highest performance and reliability.
Designed and Manufactured in Australia: Totally
designed and manufactured in Gladesville to meet the demanding needs of the Australian community.
Front Mic Input
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Channel Switch
PUSH
SQL LVL
Push for Squelch level/
Priorty channel
PUSH
PRIORITY
MENU
F
Menu/
Function
SCAN
OS/GS
OS-GS
Scan/
Liquid Crystal Display
QUIET
DUP
Duplex
Quiet/
SQL
ALPHA
Squelch/
Alpha
Volume Control
LCD PANEL
Selcall TX
Selcall RX
Selcall/Alpha Display/
Signal Meter/Battery
Quiet Tag
Scan
Channel Display
Busy
Repeater
(Duplex)
Quiet
REAR PANEL
Speaker Socket Antenna Socket Rear Microphone Socket
Transmit
CTCSS/DCS
DC Power Socket
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TX3540 CONTROLLER MICROPHONE TX3510/TX3520 MICROPHONE
Push-To-Talk (PTT)
Menu/ F Key
Power Key/ Monitor
Microphone
Channel Up
Channel Down
TX3540 CONTROLLER LCD PANEL
Scan
Quiet Tag
Selcall RX
Selcall TX
Skip/Call
LCD Display
SCAN/
OS/GS
Quiet/
Duplex
Squelch/
ALPHA
Squelch level/
Priority channel
Volume Up
Volume Down
Channel Display
Channel
Down
Push To
Talk
Squelch Set /
Skip/Call
Channel Up
Priority
Transmit
Busy
Repeater (Duplex)
Selcall/Alpha Display/Signal Meter/Battery Quiet CTCSS/DCS
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GE NERA L OPER ATION A CRO SS ALL MOD E LS
KEYPAD FUNCTIONS.
The controls on the TX3510 and TX3520 front panel and TX3540 controller microphone all have multiple functions. The primary functions are labelled in BLACK, while the secondary functions are labelled in RED. To access a primary function simply press the required key.
TX3510/TX3520 TX3540 FUNCTION
Menu:
MENU
F
SCAN
OS/GS
QUIET
DUP
Press and hold the
F: Press F briefly to access secondary functions in red on the other keys.
Scan:
Press briefly to toggle scanning.
OS/GS:
QUIET:
quiet channels.
DUP:
Press
repeater channel.
SQL:
SQL
ALPHA
Press briefly to toggle the Squelch on or off. Press and hold to toggle
CTCSS on a channel.
Alpha:
CHANNEL
Channel:
channels.
SQL: Press the Channel knob or
LVL
PUSH PUSH
PRIORITYSQL LVL
PRI
Squelch level.
Priority Recall: Press F then the Channel knob or
recall the Priority channel.
Priority Store: Press and hold the Channel knob or
the Priority channel.
VOLUME
+
PWR
ON/OFF:
the radio ON or OFF.
Volume:
volume.
To access a secondary function, briefly press the F key followed immediately by the required key.
The table below shows the control functions for all models.
Menu
key to access the configuration menu.
Press
F
then
OS/GS
to select Open or Group Scan modes.
Press briefly to toggle the Squelch on or off. Press and hold to tag
F
then
DUP
to toggle Duplex on the selected
Press
F
then
ALPHA
to toggle Alpha or Numeric modes.
Rotate the Channel knob or press
Rotate the
Volume control
Rotate the
Volume control
or to change
LVL
key briefly to preset the
PRI
or press the
or press the
PWR
+/-
LVL
key briefly to
PRI
LVL
key to store
PRI
key to switch
keys to adjust the
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NOTE: When using the F key to access other functions, F is
displayed to indicate that ‘Function’ mode is activated. If the required function is not selected within 5 seconds the F key selection will time out with a low beep and F will disappear from the display.
A more detailed description of these key functions is included in this ‘General Operation’ section. These instructions describe the radio functions using the TX3510/TX3520 controls (with the TX3540 controls shown in brackets).
VOLUME
Rotate the Volume control clockwise past the click (or press the
PWR
key) to turn the radio on. Rotate the Volume
control left or right (or press the + or keys) to adjust the
volume.
If no sound is heard, briefly press the SQL key to temporarily un-mute the radio then adjust the Volume while listening to the background noise. When finished, briefly press the SQL key again to re-mute the radio.
NOTE: At the minimum volume setting there is still sufficient
Volume to be heard in a quiet cabin environment.
SELECTING CHANNELS
To select the required channel, rotate the Channel knob (or press the
or keys). Rotate the knob clockwise (or press
) to select a higher channel or counter clockwise (or press ) to select lower channels. The selected channel is displayed
on the LCD.
SQUELCH
The squelch is used to eliminate any annoying background noise when there are no signals present. The squelch can be opened or closed using the SQL key. When the squelch is open the receiver’s background noise can be heard and
symbol is displayed. When the squelch is closed the
the receiver remains quiet while there are no signals present but any incoming signals will override the squelch and be heard in the speaker.
Adjusting the Squelch level
The squelch sensitivity level has been factory set to provide optimum performance under most operating conditions. If required, the sensitivity level can be adjusted to suit changing conditions.
To adjust the squelch sensitivity, briefly press the Channel knob (or current squelch level setting in values from SQL-1 to SQL-9.
LVL
key). The channel display will show the
PRI
Rotate the Channel knob (or press the or keys on the controller microphone) to change the squelch setting. A squelch setting of SQL-1 allows the squelch to open on very weak signals whereas a setting of SQL-9 requires much stronger signals to overcome the squelch. After adjusting the squelch sensitivity, briefly press the Channel knob (or key) to return to normal operation.
LVL
PRI
NOTE: The squelch level can be actively adjusted while the
radio is scanning. This allows you to tighten the squelch in cases where an undesired weak or noisy signal is interrupting the scan.
SIGNAL METER
The signal meter indicates the relative strength of the incoming signal in numerical format. Signal strengths are displayed on the lower left of the Channel Display in values from 0 to 9. Signals above strength 9 are displayed as 9+.
NOTE: Refer to the Configuration Menu for other options
that can be displayed in this location.
TRANSMITTING
Prior to transmitting, always check the channel is not being used. This can be done by listening to the channel or by visually checking that the
icon is not visible or the signal
meter is not indicating a signal.
To transmit, press the PTT switch on the microphone. The
will appear. Hold the microphone about 5-8 cm from
icon
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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. The
icon will disappear.
IMPORTANT: Always listen to ensure the channel is free
before transmitting.
TIME-OUT TIMER
The radio has a built-in time-out timer that automatically limits transmissions to a maximum of 3 minutes of continuous operation. This feature is required by the ACMA to prevent accidental blocking of the frequency should your PTT switch become jammed or be otherwise pressed accidentally. The time-out period can be changed by your dealer.
When the time-out timer activates, the radio will beep for 5 seconds then the
symbol will flash continuously. Normal
operation will be restored once the PTT is released.
BACKLIGHTING
The Liquid Crystal Display and keys are back lit for easy viewing at night. The backlight remains on while the radio is switched on.
Adjusting the Backlighting
The backlight brightness and colour can be adjusted for personal preference.
To make adjustments to the backlighting, press and hold the Channel knob (or will be displayed indicating the Brightness setting is selected. Briefly press the Channel knob (or through the available settings. Rotate the Channel knob left
or right (or press
LVL
key) for several seconds. BKLGT
PRI
LVL
key) to cycle
PRI
or ) to adjust the current setting.
There are three back-light settings available;
BKLGT (Brightness Setting): Provides a continuously variable brightness adjustment from very dim to full brightness.
COLOR (Colour Setting): Provides a continuously variable colour spectrum change via a smooth blend of colours.
WHITE (Whiteness Setting): Controls the whiteness or colour saturation of the selected colour from full colour to White (no colour).
TIP: For the deepest colour range, reduce the WHITE setting
After making your selection, press and hold the Channel knob (or
LVL
key) to return to normal operation.
PRI
NOTE: The back-light setting function will automatically time
out after 6 seconds if no further adjustments have been made.
BANDWIDTH FILTER SETTINGS
To accommodate the blending of the newer narrowband UHF CB 80 channel plan with the original 40 channel wideband system, your radio is fitted with two user-selectable receiver bandwidth filters. While either of these will provide superb receive audio, selecting the wide filter will further increase the tolerance of the receiver to 40 channel wideband radios that might otherwise sound over-modulated or slightly off frequency on channels 1 – 40. Selecting the narrow receive filter will increase the selectivity of the radio to strong interfering signals from adjacent channels.
To select the desired filter, press and hold the MENU key to enter the menu, then press the MENU key repeatedly until NBFLT (Narrowband Filter) or WBFLT (Wideband Filter) is displayed. Rotate the Channel knob (or press
or
) to make the desired selection.
When finished, briefly press the PTT to exit from the Menu.
Narrowband lter selected
Wideband lter selected
.
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NOTE: The wideband receiver filter setting is only applied
to channels 1 – 40. Channels 41 – 80 always use the narrowband filter.
DYNAMIC VOLUME CONTROL (DVC)
The modulation level of signals heard on the UHF CB band has always varied considerably resulting in noticeable differences in received audio Volume between stations. Generally users have compensated for this by adjusting the Volume control for each incoming signal. With the introduction of 80 channel narrowband transmissions that use lower levels of modulation, the diversity in received audio Volume is likely to increase further.
scrambled communications with owners of non-GME radios. Once the scrambler has been activated your transmission and reception will only be intelligible to others using the same scrambler technology.
To enable or disable the voice scrambler:
1. Press and hold the Menu key until the radio beeps.
2. Briefly press the Menu key repeatedly until ENCOF or ENCON is displayed.
3. Rotate the Channel knob (or press
or ) to make your selection. Select ENCON to activate the scrambler encoder or ENCOF to disable it.
4. Press the PTT to exit the menu.
Your radio is able to automatically compensate for these variations in received audio level by utilising a Dynamic Volume Control. When activated, this feature automatically compensates for variations in received audio level resulting in a constant audio output level to the speaker.
To activate the Dynamic Volume Control, press and hold the MENU key to enter the menu, then press the MENU key repeatedly until DVCOF (Dynamic Volume Control Off) or DVCON (Dynamic Volume Control On) is displayed. Rotate
the Channel knob (or press
or ) to make the desired
selection.
When finished, briefly press the PTT to exit from the Menu
Dynamic Volume Control ON
Scrambler Encoder OFF
REPEATERS AND DUPLEX MODE
Duplex operation allows the radio to transmit on a different frequency to that which it receives. This allows operation through repeater stations.
A repeater station consists of a linked transmitter/receiver combination installed in a prominent location. The repeater is designed to receive signals on a designated channel and retransmit them on another channel. Repeaters are usually mounted on hills or tall buildings. The increase elevation greatly improves both the receiving and transmitting range of
Scrambler Encoder ON
the repeater allowing it to receive and retransmit signals to radios that would otherwise be out of range of each other.
Normally, UHF radios transmit and receive on the same frequency – known as Simplex operation. However to
Dynamic Volume Control OFF
communicate through repeaters, your radio must be able to transmit and receive on different channels – otherwise known as Duplex operation. Your radio is fitted with a Duplex key to allow you to operate through repeaters.
The Duplex function can only be selected on channels 1–8 and
VOICE SCRAMBLER
Your radio incorporates a simple voice scrambler using band inversion. The scrambler is compatible with the majority of scramblers used by other manufacturers, allowing you to enjoy
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41–48 as these are the channels that have been allocated for repeater use. When Duplex is selected, your radio receives on the selected channel (e.g. CH 1) but transmits 30 channels higher (CH 31). The repeater hears your signal on CH 31 and retransmits it on CH 1 for others to hear.
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