44913-5 TX3500S IM - Vastcom
Gloss white art stock - 130gsmTrimmed document size: 133 mm (w) x 152 mm (h) 20 pagesBook to be saddle stitched in 2 placesPrinted in CMYK throughout with gloss Aq VarnishINSTRUCTION MANUAL5 watt UHF CB radioScanSuite faster, smarter scanning44913-5 TX3500S IM.indd 15/09/13 2:07 PM
CONTENTSINTRODUCTION .2INSTALLATION .17IMPORTANT INFORMATION.3DC POWER CONNECTION .19POSSIBLE ISSUES.3HIGH VOLTAGE WARNING .19EMERGENCY CHANNELS.3ANTENNA CONNECTION.20TELEMETRY CHANNELS .3NOISE SUPPRESSION.20FEATURES .4CTCSS TONE FREQUENCY CHART .20GENERAL OPERATION .4DCS TONE CHART.21Volume .4UHF CB OPERATING FREQUENCIES .22Selecting Channels.4SPECIFICATIONS .23Squelch .5SC CONTRACT WARRANTY AGAINST DEFECTS . Back pageFront Panel Controls.5Contacts . Back pageSUPPLIED WITHRear Panel .5LCD Panel .6 TX3500S Radio Microphone ClipSignal Meter .6 Mounting Cradle DC LeadTransmitting.6 Instruction Manual Screw PackTime-out Timer .6Backlighting.6Beep tone volume .7 MicrophoneIf any items are missing or damaged, please contactyour retailer or place of purchase.Bandwidth Filter Settings .7To change the Filter Setting .7Dynamic Volume Control (DVC) .7Repeaters and Duplex Mode .8Priority Channel .9Scanning .9Open Scan .10Group Scan.11Network Scan .12CTCSS & DCS.13Receive (RX) only Channels .15Configuration menu .16PA G E 244913-5 TX3500S IM.indd 2INTRODUCTIONYour GME TX3500S 80 channel radio is Australian designedand built and is the most advanced UHF Citizen Bandradio available.The TX3500S combines the very latest in electronichardware with the most up-to-date computer aided designand manufacturing techniques to produce an extremelycompact mobile radio with outstanding specifications andperformance.The TX3500S is designed for unobtrusive mounting inmodern vehicles. With its built-in loud speaker and extremelysmall size the TX3500S can be mounted in almost anyconvenient location.I N S T RU C T I O N M A N UA LTX3500S5/09/13 2:07 PM
IMPORTANT INFORMATIONThe use of the Citizen Band radio service is licensed inAustralia by the ACMA Radio communications (CitizensBand Radio Stations) Class Licence and in New Zealandby the Ministry of Economic Development New Zealand(MED). A General User Radio Licence for Citizens Band radioand operation is subject to conditions contained in thoselicences.The class licence for users and equipment operating in theCB/PRS 477 MHz band has been amended. This radio meetsthe new 80 channel standard.In simple terms the same amount of spectrum is available;however, radio transceivers can now operate in a narrowerbandwidth and hence use less spectrum. These radios aregenerally referred to as narrowband or 12.5 kHz radios.By using 12.5 kHz channel spacing instead of 25 kHz, the40 channels originally allocated can now be expanded to80 channels thereby doubling the channel capacity andrelieving congestion in the UHF CB/PRS band.Original 40 channel wideband Radios will continue to operateon the original 40 channels, however they will not be ableto converse on the newer channels 41 – 80. The newernarrowband radios will be able to converse with all older 40channel wideband radios on all channels 1 to 40 as well asthe newer channels allocated from 41 to 80. The mixing ofnarrowband and wideband radios in the same spectrum cancause some possible operating issues of interference andvarying levels of received volume.POSSIBLE ISSUESThe mixing of narrowband and wideband radios in thesame spectrum can cause some possible operating issuesof interference and differences in levels of received volume.When a new narrowband radio receives a transmissionfrom an older wideband radio the speech may sound loudand distorted – simply adjust your radio volume for bestperformance.Depending on how close your receiving radio is to anothertransmitting radio, there can be interference from thetransmitting radio if it is using a channel adjacent to thechannel you are listening to. Simply try moving up or down afew channels from the currently selected channel.The above situations are not a fault of the radio but a normalsymptom of operating wideband and narrowband radios inthe same bandwidth. This possible interference will decreaseover time as the population of wideband radios operating inthe UHF CB band ages and decreases.Further information and updates are available from theAustralian Communications and Media Authority (ACMA)at www.acma.gov.au and the Ministry of EconomicDevelopment (MED) Radio Spectrum Management at: www.rsm.govt.nzEMERGENCY CHANNELSThe ACMA has allocated channels 5/35 for emergency useonly. Channel 5 is the primary Simplex Emergency Channel.Where a Channel 5 repeater is available, you should selectDuplex on CH 5.NOTE: Channel 35 is the input channel for the Channel 5repeater therefore Channel 35 should also not be used foranything other than emergency transmissions.TELEMETRY CHANNELSACMA regulations have allocated channels 22 and 23for telemetry only applications and have prohibited thetransmission of speech on these channels. Consequentlythe TX3500S has a transmit inhibit applied to channels 22and 23. In the event additional telemetry/telecommandchannels are approved by the ACMA, these channels shall beadded to those currently listed where voice transmission isinhibited. Currently transmissions on channels 61, 62 and 63are also inhibited and these channels are reserved for futureallocation.When an older wideband radio receives a signal from a newnarrowband radio, the speech may sound quiet –– simplyadjust your radio volume for best performance.TX3500S44913-5 TX3500S IM.indd 3I N S T RU C T I O N M A N UA LPA G E 35/09/13 2:07 PM
FEATURESTRANSMIT (TX)Individually Programmable DUPLEX function: User selectable for only those individual channels in your area that haverepeaters, leaving the others free for use as extra simplex channels.SCANNING AND MEMORY FUNCTIONSMicroprocessor Controlled Frequency Synthesiser: Allows user programmable control of scanning, channel memories andselected feature options.Programmable Scan Function: Scans the selected UHF CB channels with both Group, Open and Network scanfunctionsavailable.Priority Channel: A user programmable Priority channel feature allows your working channel to be instantly recalled at thepress of a key.SIGNAL PROCESSINGDigital Signal Processing: Measures, filters and compresses standard analogue audio signals and converts them into digitalformat. Allows advanced RF and audio processing techniques to be applied to maximise the radios performance.Advanced Signal Management: Identifies interference caused by strong local signals on adjacent channels and preventsthese from opening your squelch. ASM also minimises distortion on reception by fine tuning the receiver frequency to matchthat of the incoming signal.Dynamic Volume Control: Automatically compensates for variations in received audio level to provide a constant audiooutput level to the speaker.PRIVACY FUNCTIONSCTCSS & DCS: A built-in Continuous Tone Coded Squelch and Digital Coded Squelch System option provides silent channeloperation.PHYSICAL PROPERTIESOver Voltage Protection: Special overvoltage detection circuitry protects the radio and warns of excessive voltage conditionsby flashing the display.USER CONTROLS AND INTERFACEFull Spectrum Backlighting: User adjustable, totally customisable backlight settings to match the vehicles dashboardlighting or drivers preference.High Contrast Liquid Crystal Display: Fully detailed LCD provides a visual indication of the selected channel and all selectedfunctions at a glance.Front and Rear microphone inputs: Convenient front and rear microphone inputs to facilitate ease of installation andoperation across a range of vehicles.PA G E 444913-5 TX3500S IM.indd 4I N S T RU C T I O N M A N UA LTX3500S5/09/13 2:07 PM
CONTROLSFRONT PANEL CONTROLSLCD (Liquid Crystal Display)Channel SelectorVolume SelectorCHANNELVOLUMEPRIMicrophone PortPriority KeySCANScan KeyDUPSQLDuplex KeySquelch KeyREAR PANELExt speaker socketDC socketRear microphone socketAntenna socketLCD PANELScan IconBusy Icon Transmit IconChannel DisplaySignal MeterCTCSS/DCS IconPriority IconDuplex IconTX3500S44913-5 TX3500S IM.indd 5I N S T RU C T I O N M A N UA LPA G E 55/09/13 2:07 PM
GENERAL OPERATIONAdjusting the squelch levelVOLUMERotate the Volume control clockwise past the ‘click’ to turnthe TX3500S on. Rotate the control further clockwise toincrease the volume, or counter clockwise to decrease thevolume.If no sound is heard, briefly press the SQL key to temporarilyun-mute the radio then adjust the volume while listening tothe background noise. When finished, briefly press the SQLkey again to re-mute the radio.NOTE: At the minimum volume setting there is still sufficientvolume to be heard in a quiet cabin environment.Select the required channel by rotating the Channel knob.Rotate the knob clockwise to select higher channel andcounter clockwise to select lower channels. The selectedchannel is displayed on the LCD.SQUELCHThe squelch is used to eliminate any annoying backgroundnoise when there are no signals present. The squelch canbe opened or closed using the SQL key. When the squelchis open the receiver’s background noise can be heard andthesymbol is displayed. When the squelch is closed thereceiver remains quiet while there are no signals present butany incoming signals will override the squelch and be heardin the speaker.To open the squelchBriefly press the SQL key. A low beep will be heard and thesymbol will be displayed. If there are no signals presentyou will hear the receiver’s background noise.To close the squelchBriefly press the SQL key. A high beep will be heard. If theresymbol will disappear and theare no signals present thereceiver will become quiet again.44913-5 TX3500S IM.indd 6To adjust the squelch sensitivity, briefly press the Channelknob. The channel display will show the current squelchsetting in values from 1 - 9. A squelch setting of -1 allowsthe squelch to open on very weak signals whereas a settingof -9 requires much stronger signals to overcome the squelch.Rotate the Channel knob to change the squelch setting.Press the Channel knob to accept the setting and returnto normal operation.SIGNAL METERSELECTING CHANNELSPA G E 6The TX3500S’ default squelch sensitivity level has beenfactory set to provide optimum performance under mostoperating conditions. If required, the sensitivity level can beadjusted to suit changing conditions.The signal meter indicates the relative signal strength ofthe incoming signal. Stronger incoming signals will displaymore bars while weaker signals will display less bars.TRANSMITTINGPrior to transmitting, always check the channel is not beingused. This can be done either by listening or by checking thatthe signal meter and the ‘BUSY’ iconis not visible.iconTo transmit, press the PTT on the microphone. Thewill appear. Hold the microphone about 5-8 cm from yourface and speak at a normal voice level. The microphone isquite sensitive so it is not necessary to raise your voice orshout. Release the PTT when you have finished talking. Theicon will disappear.IMPORTANT: Always listen to ensure the channel is freebefore transmitting.TIME-OUT TIMERYour TX3500S has an in-built Time-Out Timer (TOT)that limits transmissions to a maximum of 3 minutes ofcontinuous operation. This feature is required by the ACMAto prevent the radio from jamming the frequency if thePTT button has been accidentally jammed. Once the TOT istriggered the radio will beep once and the transmitter outputwill be switched off. If the PTT remains pressed, the transmiticonwill remain visible but there will be no signalI N S T RU C T I O N M A N UA LTX3500S5/09/13 2:07 PM
transmitted from the radio. Once the PTT button has beenreleased the TOT is reset and transmissions can recommence.BACKLIGHTINGThe Liquid Crystal Display and keys are back lit for easyviewing at night. The back lighting remains on at while theTX3500S is switched ON.Adjusting the backlightingThe backlighting brightness and colour can be adjusted forpersonal preference. There are three settings available;br’ - Brightness Setting: Provides a continuously variablebrightness adjustment from very dim to full brightness.‘cL’ - Colour Setting: Provides a continuously variable colourchange via a smooth blend of Red, Green and Bluecolours.‘Li’ - Lightness Setting: Provides a continuously variablelightness or colour saturation of the selected colourfrom full colour to white (no colour).To make adjustments to the backlighting,1. Press and hold the Channel knob to enter the MENU.‘br’ will be displayed indicating the Brightness mode isselected.2. Rotate the Channel knob to adjust the displaybrightness.3. Briefly press the Channel knob to select the Colourmode. ‘cl’ will be displayed.BEEP TONE VOLUMEThe Key Beeps provide audible feedback whenever the keysare pressed. You can adjust the volume of the key beeps asfollows.1. Press and hold the Channel knob to enter the MENU.‘br’ will be displayed.2. Press the Channel knob repeatedly until ‘bP’ (Beep) isdisplayed.3. Rotate the Channel knob clockwise to increase the Beepvolume or counter-clockwise to decrease the Beep volume.The signal meter bars will increase or decrease with thevolume level setting.When finished, press and hold the Channel knob to returnto normal operation.BANDWIDTH FILTER SETTINGSThe TX3500S is fitted with two user-selectable receiverbandwidth filters which allow the receiver to be adjusted foreither wide or narrow band reception on channels 1 – 40.This feature provides additional compatibility with older40-channel radios. The wide setting increases the toleranceof the TX3500S receiver to older wideband 40 channel radiosor to signals that might be slightly off frequency. The narrowsetting increases the selectivity of the receiver to help reduceinterference from strong interfering signals on adjacentchannels.To change the filter settingTo change the filter setting;4. Rotate the Channel knob to adjust the colour.5. Briefly press the Channel knob to select the Lightnessmode. ‘Li’ will be displayed.6. Rotate the Channel knob to adjust the lightness(saturation) of the chosen colour. For the deepest colourrange, reduce the lightness setting.When finished, press and hold the Channel knob to returnto normal operation.1. Press and hold the Channel knob to enter the MENU.‘br’ will be displayed.2. Press the Channel knob repeatedly until ‘FL’ (Filter) isdisplayed.3. Rotate the Channel knob clockwise to select the NarrowBand Filter. The close spacing of the signal meter barsconfirms the Narrow Band Filter is selected.NOTE: The MENU function will automatically time out after 6seconds if no further adjustments have been made.TX3500S44913-5 TX3500S IM.indd 7I N S T RU C T I O N M A N UA LPA G E 75/09/13 2:07 PM
To switch the Dynamic Volume Control ON or OFF1. Press and hold the Channel knob to enter the MENU.‘br’ will be displayed.2. Press the Channel knob repeatedly until ‘dL’ (DynamicLevel) is displayed.4. Rotate the Channel knob to select the Wide Band Filter.The wide spacing of the signal meter bars confirms theWide Band Filter is selected.3. Rotate the Channel knob clockwise one click to viewthe current setting.4. Rotate the Channel knob clockwise again to select ON.‘on’ is displayed.5. Rotate the Channel knob counter-clockwise to selectOFF. ‘oF’ is displayed.When finished, press and hold the Channel knob to returnto normal operation.NOTE: The wideband filter selection only operates onchannels 1-40. Channels 41-80 always remains narrowband.DYNAMIC VOLUME CONTROL (DVC)The modulation level of signals heard on the UHF CB band hasalways varied considerably resulting in noticeable differencesin received audio volume between stations. Generally usershave compensated for this by adjusting the volume controlfor each received signal. With the introduction of 80 channelnarrowband transmissions that use lower levels of modulation,the diversity in received audio volume is likely to increasefurther.The TX3500S is able to automatically compensate for thesevariations in received audio level by utilising a DynamicVolume Control. When activated, this feature automaticallycompensates for variations in received audio level resultingin a constant audio output level to the speaker to greatlyenhance the quality of the reception.When finished, press and hold the Channel knob to returnto normal operation.SILENT SQUELCH TAILThe Squelch tail is the short burst of noise that is heard inthe speaker at the end of a transmission, during the briefinterval before the squelch closes.To some it is a reassuring confirmation that it is theirturn to transmit but in some applications it may be anannoyance especially when listening through an earpieceor headphones.The Silent Squelch Tail function removes this squelch tail,reducing it to a faint click as the squelch closes.To enable or disable the Silent Squelch Tail1. Press and hold the Channel knob to enter the MENU.‘br’ will be displayed.2. Press the Channel knob repeatedly until ‘St’ (SilentTail) is displayed.3. Rotate the Channel knob one click. The current settingis displayed.4. Rotate the Channel knob to the right to enable the silent squelch tail. ‘on’ will be displayed and the squelchtail will be silent.5. Rotate the Channel knob to the left to disable the si-PA G E 844913-5 TX3500S IM.indd 8I N S T RU C T I O N M A N UA LTX3500S5/09/13 2:07 PM
lent squelch
ACMA regulations have allocated channels 22 and 23 for telemetry only applications and have prohibited the transmission of speech on these channels. Consequently the TX3500S 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
PAGE 6 INSTRUCTION MANUAL TX3500S GENERAL OPERATION VOLUME Rotate the Volume control clockwise past the ‘click’ to turn the TX3500S on. Rotate the control further clockwise to increase the volume, or counter clockwise to decrease the volume. If no sound is heard, briefly press the SQL key to temporarily
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