Super compact 5 watt UHF CB radio with ergonomic speaker control microphone INSTRUCTION MANUAL CONTENTS ACCESSORIES SUPPLIED ..................................................... 3 Selecting a Scan Group ............................................. 12 INTRODUCTION ................................................................. 3 Programming Scan Channels .................................... 12 IMPORTANT INFORMATION ................................................ 3 OPEN SCAN MODE ......................................................... 12 Possible issues ............................................................ 3 GROUP SCAN MODE ....................................................... 13 Emergency channels ................................................... 3 Auto Skip ................................................................. 13 FEATURES .......................................................................... 4 Quick Channel Select ................................................ 14 Telementry channels ................................................... 5 Using two Group Scan or two Open Scan Modes ....... 14 GENERAL OPERATION ........................................................ 5 SELECTIVE CALLING ......................................................... 14 MC634B Controller Microphone ................................. 5 SelCall Indentification Number (IDENT) ..................... 14 Display ....................................................................... 5 SelCall Ident Labels .................................................. 14 Function Keys ............................................................. 6 The Quiet Mode ........................................................ 15 Volume Key ................................................................ 6 USING SELCALL ............................................................... 15 Selecting Channels ..................................................... 6 Entering a SelCall Ident............................................. 15 Transmitting ............................................................... 6 Call Acknowledge ..................................................... 15 Squelch ...................................................................... 6 SelCall Memories ...................................................... 15 Squelch Sensitivity ...................................................... 6 Labelling your SelCall Idents ..................................... 16 Duplex Operation ....................................................... 7 Receiving SelCalls ..................................................... 17 Menu ........................................................................ 8 Quiet Mode .............................................................. 17 Backlighting ............................................................... 8 GROUP CALLING.............................................................. 18 Signal Meter/Battery Meter ......................................... 8 INSTALLATION ................................................................. 20 Key Beeps ................................................................... 9 Antenna Installation ................................................. 20 Dynamic Volume Control (DVC) ................................... 9 DC Power Connection ............................................... 22 Disabling the Internal Speaker..................................... 9 High Voltage Warning ............................................... 22 Microphone Sensitivity ................................................ 9 Antenna Connection ................................................. 23 Priority Channel ........................................................ 10 CTCSS TONE FREQUENCY CHART ..................................... 23 CTCSS & DCS ................................................................... 10 DCS TONE CHART............................................................. 24 Choosing the CTCSS or DCS...................................... 10 UHF CB OPERATING FREQUENCIES .................................. 25 CTCSS Tone Set Compatibility ................................... 10 SPECIFICATIONS .............................................................. 26 MONITORING THE CHANNEL ............................................ 11 SC CONTRACT WARRANTY AGAINST DEFECTS ................. 27 SCANNING ...................................................................... 11 Scan Groups ............................................................. 11 PAGE 2 INSTRUCTION MANUAL TX3350 ACCESSORIES SUPPLIED be expanded to 80 channels thereby doubling the channel capacity and relieving congestion in the UHF CB/PRS band. • TX3350 5 watt • Microphone Clip Original 40 channel wideband Radios will continue to UHF CB Radio • DC Lead operate on the original 40 channels, however they will not • Mounting Cradle • Screw Pack be able to converse on the newer channels 41 – 80. The • Instruction Manual If any items are missing newer narrowband radios will be able to converse with all • MC634B LCD Speaker or damaged, please older 40 channel wideband radios on all channels 1 to 40 as Microphone contact your retailer or well as the newer channels allocated from 41 to 80. place of purchase. The mixing of narrowband and wideband radios in the same spectrum can cause some possible operating issues INTRODUCTION of interference and varying levels of received volume. Your GME TX3350 80 channel radio is Australian designed POSSIBLE ISSUES and built and is the most advanced UHF Citizen Band radio When a new narrowband radio receives a transmission from an available. It combines the very latest in electronic hardware older wideband radio the speech may sound loud and distorted – with the most up-to-date computer aided design and simply adjust your radio volume for best performance. manufacturing techniques to produce an extremely compact mobile radio with outstanding specifications and performance. When an older wideband radio receives a signal from a new narrowband radio, the speech may sound quiet – simply The SoundPath™ speaker control mic brings you clear sound adjust your radio volume for best performance. and total control from the palm of your hand, allowing your There can be interference from a nearby transmitting radio if it radio to be mounted almost anywhere in your vehicle. is using a channel adjacent to the channel you are listening to. IMPORTANT INFORMATION Simply try going up or down a few channels from the currently CONCERNING UHF CB RADIO selected channel. The above situations are not a fault of the radio but a symptom of operating wideband and narrowband The use of the Citizen Band radio service is licensed in radios in the same bandwidth. This possible interference will Australia by the ACMA radio communications (Citizens decrease over time as the population of wideband radios ages Band radio stations) Class Licence and in New Zealand by and decreases. the Ministry of Economic Development New Zealand (MED). Further information and updates are available from the A General User Radio Licence for Citizens Band radio Australian Communications and Media Authority (ACMA) at: and operation is subject to conditions contained in www.acma.gov.au and the Ministry of Economic Development those licences. (MED), Radio Spectrum Management at: www.rsm.govt.nz The class licence for users and equipment operating in the EMERGENCY CHANNELS CB/PRS 477 MHz band has been amended. This radio meets the new 80 channel standard. The ACMA has allocated channels 5/35 for emergency use only. Channel 5 is the primary Simplex Emergency Channel. In simple terms the same amount of spectrum is available; Where a Channel 5 repeater is available, you should select however, radio transceivers can now operate in a Duplex on CH 5. narrower bandwidth and hence use less spectrum. These radios are generally referred to as narrowband or 12.5 NOTE: Channel 35 is the input channel for the Channel 5 kHz radios. By using 12.5 kHz channel spacing instead repeater therefore Channel 35 should also not be used for of 25 kHz, the 40 channels originally allocated can now anything other than emergency transmissions. TX3350 INSTRUCTION MANUAL PAGE 3 FEATURES TRANSMIT (TX) 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. SIGNAL PROCESSING Digital Signal Processing: Measures, filters and compresses standard analogue audio signals and converts 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. Dynamic Volume Control (DVC): Automatically compensates for variations in received audio level resulting in a constant audio output level to the speaker. SCANNING AND MEMORY FUNCTIONS Microprocessor Controlled Frequency Synthesiser: Allows user programmable control of scanning, channel memories and selected feature options. Programmable Scan Function: Scans the programmable UHF CB channels with both Group and Open scan functions available. 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. PRIVACY FUNCTIONS In-Built SelCall: Selective Calling with five digit ANI and fully user-adjustable