HT644 User Guide_HT700
Contents
1. In compliance with worldwide license regulations the following versions of HT644 are available Version A INT USA amp Canadian modes Version B C amp D INT mode only In the case of version A only to change the channel set of the transceiver hold down the WX key The mode changes from USA to Canadian to International 2 Refer to the marine channel charts in this booklet for allocated channels in each mode cC e DO 53 NOAA Weather Channels Applicable to version A model only I To receive a weather channel press the WX key The transceiver enters into weather channel mode 2 There are 10 weather channels Use the amp buttons to select the desired channel 3 To exit from the weather channels press the WX key The transceiver recalls the previous working channel Emergency Channels To select the emergency channel press the 16 9 button from any channel Channel 16 appears on the display To recall the previous channel used press the 16 9 button once again Channel 9 Channel 9 is used as a hailing channel for initial non emergency contact with other vessels Hold down the 16 9 key for second to select channel 9 To recall the previous channel used press the 16 9 button twice Monitor Channels Press the blue monitor button on the top of the radio to defeat the squelch mute and release button to mute radio A long press radio will beep will hold the squelch mute open until pressed again2. s memory MEM is displayed on the LCD This channel is now memorised to be scanned 3 To add further channels repeat steps amp 2 4 To delete a channel from the transceiver s scan list press the MEM button on a channel that displays the MEM icon until the icon disappears 5 All channels programmed remain in the transceiver s scan memory even if the power is switched off 6 Adjust the squelch control until the white noise is eliminated 7 To start scanning press the SCAN key The scan proceeds from the lowest to the highest programmed channel number amp stops on channels when a transmission is received 8 To stop the scan at any time press the SCAN key again VOX Voice Operated Transmit Press the MEM button amp switch the transceiver on The VOX symbol amp a 0 will flash 0 indicates VOX is switched off is for low sensitivity 5 is for normal sensitivity and 9 is for high sensitivity Use the UP DOWN button to select the desired level press MEM to confirm the transceiver is now set to VOX To switch VOX off go back into VOX programming mode by holding the MEM key whilst switching on Press the UP DOWN button until the vox level is off and press MEM to confirm In VOX mode the transceiver will react to your voice and transmit automatically without you having to press the PTT button There is always a slight delay for the electronic switching amp consideration will need to be given To ge
3. www busse yachtshop de 1 info busse yachtshop de Intended Country Of L DAT OBE pc BEICY EC EDK sel EE Gel LIFR LIDE LIGR OHU LIS DIE OIT LILV BJE ILU OMT INL LINO LPL OPT ORO Copyright Entel UK Ltd 2009 08910 ered Community ge 5 Design Patent Pending No pyright and Unregistered Desi IC lli ights reserved Headquarters United Kingdor busse yachtshop de inf
4. by regulatory agencies governing VHF radio use for a specific region or country These channels are prefixed with a P and can only be programmed into the transceiver by authorised dealers PTT Press To Talk Transmit RX Receive Simplex Transmit and receive on the same frequency Squelch To suppress background noise TX Transmit Transceiver A device that can transmit and receive USA Channels Channel designations as defined by the Federal Communications Commission FCCVOX VOX Voice Operated Transmit VHF Very High Frequency 30MHz to 300 MHz 16 www busse yachtshop de info busse yachtshop de O o u u 9 in x lt SYMPTOM PROBABLE CAUSE REMEDY Battery needs charging or Charge the battery pack battery is exhausted replace the battery pack Use the MEM key to enter desired channels into scan The scan key does not start No channels memorised memory Adjust the squelch to Transceiver not switching on Troubleshoot the scan MEM Squelch is not adjusted threshold or to the point where the white noise just disappears Cannot change any function Key lock is switched on Turn key lock off Defective battery or charger Dirty terminal contact on battery or charger The LED on the charger does not illuminate when charging Contact your dealer Clean contacts with dry clean cloth No transmit or cannot select Some channels are low p
5. to cancel again to return to squelch mute Adjusting Squelch Threshold Press amp hold the blue monitor button on the top of the radio and switch radio on then after the radio emits a beep release the blue button This will cause the radio to display a number representing the squelch threshold from 01 16 01 is the more sensitive amp 16 is the less sensitive Use the UP 2 amp DOWN channel buttons to adjust the level amp press MEM to store the new squelch level www busse yachtshop de f info busse yachtshop de Q I d SIMPLEX DUPLEX CHANNEL USE Your transceiver has been factory programmed in accordance with FCC USA Industry Canada and International regulations The mode of operation cannot be altered from simplex to duplex or vice versa Simplex or duplex mode is automatically activated depending on the channel and the channel set and whether USA Canadian or International mode is selected Refer to the channel charts listed on pages 18 20 of this user manual If you have a licence to use a specific simplex or semi duplex channel contact your dealer who may be able to programme your channel using the transceiver s private channel memory CHANNEL A B INSTANT ACCESS For your convenience two user assigned channels can be programmed for instant access If the A B key is pressed and no channel A or B has been assigned a short beep will be heard PROGRAMMING A B INSTANT ACCESS BUTTONS I Hold
6. CE af x x i559 15300 PUBLIC CORRESPONDENCE Dx x x 9 1559 15350 PUBLIC CORRESPONDENCE Dx x x x 9 i999 157400 PUBLIC CORRESPONDENCE ef I x X Leen T5050 POICON ORTON mpx x s mm p ef LL Lee 15807500 PCO ORN mj ef I X Le erer PUSICVPORTORRATONS STT Te je PCO ORTON ee x EE RE ICH HE TOT E ar sensi ORL FORT ORTO mx EO el X NC 99m 15652500 PCO ORN e NE E DEI eme qER E erp IL ESE x s mem NONEM 000 ess pr mx EL m x x x s EE Channel Chart 19 www busse yachtshop de info busse yachtshop de Channel Set D Frequency USA CAN INT Receive Transmit Channel Use 161 52500 156 92500 161 92500 157 32500 161 97500 157 37500 162 02500 157 42500 O IL NI NI NI N N N NI Of u gt S al dl A gt gt gt gt EE gt CO G2 gt E LA oo EN oo oo oo oo o gt oo N gt CO 00 SEN Co CO 00 EEE S Simplex s D Duplex R Receive Only 0 www busse yachtshop de 1 info busse yachtshop de O D 5 5 o A F D er Specifications GENERAL Frequency Range v L J M 156 163 275MHz Channel Spacing 25 kHz Communication Method Simplex Antenna High Efficiency Helical Antenna Impedance 50 ohm Power Supply Voltage 74V DC Battery Life 8 Hours Current Drain nominal
7. HT644 User Guide vO7 I I Professional submersible marine handheld transceivers www busse yachtshop de ntshop de Topic Certification Introduction Packing List Radio Care Preparing Your Radio For Use Battery Care Information Using Your HT644 Reception Transmitting Channels Functions The Scan Function VOX Voice Operate Transmit LCD Indicators Optional Accessories Standard Features Controls Glossary of Terms Troubleshooting Channel Chart Technical Specifications Notes www busse yachtshop de info busse yachtshop de Page ui RO NNO 4 WWW DN N 8 amp 9 10 10 10 Il 12 amp 13 13 14 amp 15 16 Ei 18 amp 20 21 amp 22 23 amp 24 Declaration of Conformity We Entel UK Limited of 320 Centennial Avenue Centennial Park Elstree Borehamwood Hertfordshire WD6 3T United Kingdom Declares under our sole responsibility that the product range HT644 Series Handheld Radio Transceiver Conforms to the following standards or other nominative documents e EN 301 178 2VI 2 2 2007 02 EN 60945 2002 EN60950 1 2006 in accordance with Directive 1999 5 EC Serial Number IM Austin T Date ctober Quality intl C ISO 9001 REGISTERED FIRM www busse yachtshop de f info busse yachtshop de 4 Q kel e Sa m The Entel HT644 is a professional marine handheld transceiver that operates on the VHF marine band The HT644 has 58 marine internat
8. Standby 40mA RX 390 mA 1 0 W audio output 1kHz TX Less than A at 2W 0 7 A at IW Duty Cycle TX 10 RX 10 Standby 80 Microphone Internal condenser microphone Operating Temperature 20 C to 60 C Height 130mm 145mm including knobs Width 59 5mm 62mm including protrusions Diameter 37mm 41mm including battery protrusions Less than 300g www busse yachtshop de 1 info busse yachtshop de TRANSMITTER Frequency Range fications 156 025 157 425 Power Output Selectable HIGH 5W LOW IW Modulation 16K0G3E Oscillator Method PLE Frequency Stability 2PPM Maximum Deviation 5 kHz Audio Distortion 5 1 kHz 60 Spurious Emissiong 55db Hum amp Noise RECEIVER Frequency Range 40 dB 156 163 275MHz Receiver Type Double Super Heterodyne type Sensitivity 0 25uV I2dB SINAD Frequency Stability 2PPM Spurious Rejection 60 dB Adjacent Channel Selectivity 70 dB Distortion lt 3 Typical Hum amp Noise 40 dB Audio Output IW Speaker Size 2 www busse yachtshop de 1 info busse yachtshop de 38 mm suomne yiodg Use this page to record important information such as the serial number of your radio and any private channels programmed by your dealer etc 3 www busse yachtshop de 1 info busse yachtshop de 4
9. down the A B key and turn on the transceiver 2 The letter A will appear on the display and dashes _ designated channel A 3 Press the UP DOWN button until the desired channel number is displayed 4 With the desired channel number displayed press the MEM key once The A will stop flashing indicating that the displayed channel is now designated channel A 5 Press the A B button again The letter b will appear on the display Repeat steps 2 through to 4 6 Switch transceiver off and on to exit this mode and save changes If you wish to clear instant access channels follow step then press the MEM key The A will flash Now switch the transceiver off and on again indicate that no channel has been Note Should you later wish to delete any stored channels simply press MEM key whilst in A B programming mode OPERATION OF A B INSTANT ACCESS BUTTONS Pressing the A B button will toggle between A B and the previous selected working channel Channel A is represented by the A to the left of the channel number on the LCD amp channel B is represented by B Note Do not confuse this A with the one that is sometimes displayed to the right hand side of the channel number in USA and Canadian modes www busse yachtshop de f info busse yachtshop de The Scan Function Select the desired channel to be scanned using the 2 amp buttons 2 Press the MEM button to store the channel in the transceiver
10. e the accessory cover by unscrewing the locking screw anti clockwise leave cover secured under antenna as this provides a waterproof seal Attach accessory plug by locating over the socket Carefully tighten the locking screw clockwise until finger tight do not tighten with a screwdriver etc 3 To remove unscrew accessory plug the locking screw by hand in an anti clockwise direction carefully use a coin or screwdriver if too tight Ensure you re fit the accessory waterproof cover so as to protect the accessory socket Attaching Removing the Belt Clip 5 To attach slot the clip onto the slot on the back of the battery and slide up until you hear a click 6 To remove pull the tab towards the belt t clip EX Then slide the belt clip downwards E E 4 www busse yachtshop de info busse yachtshop de Introduction Your Entel radio is supplied with a high performance Lithium lon Li Ion battery These batteries e Extend talk time e Reduce the battery s size and weight e Do not suffer from memory effect that reduces the life of Ni Cad and NiMH batteries e Have a low toxicity therefore reducing the impact on the environment Battery Pack e fa battery is not to be used for an extended period of time e g several months remove the battery pack from the equipment and store in a cool and dry location around 0 C part charged Do not fully discha
11. ent 20 mins LL Note Only genuine Entel batteries should be used Customer satisfaction is assured as you can not be supplied with sub standard potentially dangerous battery packs from 3rd party manufacturers ensuring it delivers the expected capacity and endurance On HT series batteries a breathable membrane is used This is clearly marked on the battery label Piercing the membrane will allow water ingress to the battery amp will invalidate the warranty www busse yachtshop de f info busse yachtshop de A Q Si d Turning The Radio On amp Off Turn the ON OFF control on the top of the radio clockwise until the LCD iluminates amp a short beep is emitted To turn the radio off turn the ON OFF control anti clock wise until the LCD deluminates Using Your radio Before using your radio you may need to adjust the volume on the radio to take in to account background noise Adjust the volume using the rotary control on the top of the radio 4 Hm 4 5 gt il E A i I To Turn the radio on rotate the volume control clockwise to select the desired audio level continue rotating the control clockwise to increase volume amp counter clockwise to decrease After power on the transceiver will always default to the last channel selected 2 One second after start up a tone is generated to indicate the transceiver has passed its self diagnostic test During standby the LED indicator will pulse amb
12. er every 3 seconds to verify its circuitry is functioning correctly 3 Use the UP DOWN keys to select a desired channel A full listing of all available channels can be found on page 17 18 4 When receiving a signal the LED indicator illuminates green amp an RX is displayed on the LCD 5 While the radio is operating if you hear white noise you may need to adjust the squelch threshold of the radio for more information see page 8 Adjusting Squelch Threshold On some channels a slight adjustment of the squelch threshold is needed as some channels have a higher noise level than others EB Perform steps through 3 of RECEPTION 2 Before transmitting monitor the channel and make sure it is clear 3 For communications over short distances press the H L key and select low power I watt Transmitting on watt prolongs battery life and should be selected whenever possible 4 When receiving a signal wait until the signal stops before transmitting The transceiver cannot transmit and receive simultaneously 5 Press the PTT Push To Talk button to begin your transmission To confirm transmission in progress the LCD indicator illuminates TX and the LED illuminates RED 6 Hold the transceiver inch from your mouth and speak slowly and clearly into the microphone 7 When the transmission is finished release the PTT button 7 www busse yachtshop de info busse yachtshop de INT USA amp Canadian Modes
13. ional channels 10 weather amp 36 dealer programmable private channels The 58 marine channels are switchable to comply with USA International or Canadian regulations This is done via the radio s keypad It has an emergency channel which can be immediately selected from any channel using the red 16 9 button Weather channels can also be accessed immediately using the WX key The HT644 includes the following features Scan A B quick access channels battery life indicator VOX voice activated transmit low battery indicator large LCD with back light HT644 Transceiver o List e CATXX Antenna CNB750E Rechargeable 1800mAh Li Ion battery CCA trickle charger included with certain models CBH750 Spring loaded belt clip ER Warranty The HT644 comes with a 24 month warranty for details see our full terms amp conditions Advice Do not use options or accessories not specified by Entel Ensure that the radio is used within the parameters for which it was designed Please switch the transceiver off before connecting optional accessories Warning Turn the transceiver off in the following locations In explosive atmospheres flammable gas dust including metallic amp grain powders etc Whilst taking on fuel or while parked near a fuel station Near explosives or blasting sites In aircraft medical institutions or near persons known to be wearing a pacemaker Caution Do not disassemble or modify the transcei
14. irection carefully use a coin or screwdriver if too tight Ensure you re fit the accessory cover so as to protect the socket On Battery amp Charger Options CNB750E Spare 1800mAh Lithium lon battery pack with rear clip CLB750G Spare 2000mAh Lithium Manganese non rechargeable battery with rear clip CSAHT way intelligent rapid charger 10 230v CSBHT 6 way intelligent rapid charger 10 230v CCAHT 230 way trickle charger with 230V mains adapter CCAHT 1 10 I way trickle charger with 10V mains adapter CCAHT I2 l way trickle charger with cigar lighter lead 12V DC operation Carry Options CFC750 HT64X soft leatherette case finished in black with carry strap SEC 752 HT642 HT648 heavy duty black leather case with strap amp belt loop CLC753 HT644 amp HT649 heavy duty black leather case with strap amp belt loop CBH750 Spare spring loaded belt clip Audio Accessory Options CMPI 750 Compact medium duty speaker microphone with earpiece jack CMP750 Heavy duty submersible speaker microphone EHP9 D shaped earpiece plugs into CMP1 750 or CMP750 above EA 12 750 D shaped earpiece with in line PTT microphone amp VOX EA 15 750 Earpiece microphone with transparent acoustic tube amp VOX EA 19 750 D shaped earpiece with boom microphone and in line PTT amp VOX EHP750 D Shaped earpiece connects directly to radio EPT40 750 Bone conductive earpiece microphone with PTT CXR5 750 Bone conductive skull micr
15. n indicating ready for charge 2 Turn the transceiver off Insert the battery pack into the charger pod either with or without the transceiver attached The LED status light changes from green to RED amp trickle charge begins 4 Afully discharged battery pack will take approximately 6 hours to charge depending on the remaining power condition When charge is complete the LED status light turns green Overcharging The battery pack has an over current protection circuit fitted When charging a completely discharged battery i e first charge ensure the battery is removed from the radio and then re attached if fitted to radio when charging This will reset the protection circuitry and ensure normal operation This process will need to be repeated if the battery is allowed to completely discharge in the future In normal use this is unlikely Attaching Removing the Battery Pack DI 1 To attach locate the pegs on the bottom of the battery into the slots on the radio and press the top of the battery against the radio Secure battery by tightening the screw clockwise by hand Do not over tighten 2 To remove unscrew the locking screw anticlockwise amp pull the battery away from the top of the radio Battery Indicator For your safety and convenience your transceiver continually monitors the battery pack and gives an indication on the LCD e 3 Segments 12 hours e 2 Segments hour e Segm
16. ophone with in line PTT CXR16 750 D shaped earpiece and throat microphone with in line PTT 12 www busse yachtshop de info busse yachtshop de vo sa i o o o Jg U lt CHPI 750 Light weight single earpiece headset with in line PTT amp VOX CHP750HS Single earpiece ear defender headset with boom mic and in line PTT for hard hat amp VOX CHP750HD Double earpiece defender headset with boom mic and in line PTT for hard hat amp VOX CHP750D Double earpiece headband defender headset with boom mic and in line PTT amp VOX CHP750BT Bluetooth double earpiece headband defender headset with boom mic and ear cup PTT CBH750 Spare spring loaded belt clip VOX Voice Operated Transmit hands free operation For complete up to date list of optional accessories visit www entel co uk Standard Features e Environmentally protected to IP68 i e submersible to 5 metres for up to 60 minutes e Robust design exceeds MIL STD 810C D E F e LCD screen to display channel number amp current settings status e 1800mAH Lithium lon battery for superior operational time e INT USA CAN channels e Full transmit power output 5 Watts e Exceptionally loud amp clear audio e Ch 16 9 shortcut button e WX shortcut button e Scan button e Monitor button e MEM button e Automatic power save to further increase operational time e Low battery alert indicates when the battery needs charging or replacing e Batter
17. ower Change to high power channel high power only Battery pack exhausted Charge replace the battery Hold MEM button for 2 secs use UP or DOWN button amp select off to turn VOX off Transceiver transmits without pressing PTT button Buttons VOX has been enabled seem to work intermittently 17 www busse yachtshop de info busse yachtshop de Channel Set S D Frequency USA CAN INT Receive Transmit Channel Use 160 65000 156 05000 160 70000 156 10000 160 75000 156 15000 160 80000 156 20000 160 85000 156 25000 160 95000 156 35000 161 50000 156 90000 161 55000 156 95000 161 60000 157 00000 161 60000 157 00000 CH NI U1 A UJ co gt o gt e EE EN poppe ME EN EREN Exe LXI LX qe NES EEE E E EREN BRE SA EE NE EE ECH KEEN xp ESE MESE ON EN NE EEE BE E LXX qx E GE GE E EN op X px pee DX x ER EN EEEN ENEN EEEN MEER EN ne E EE NEN NN EN LEX LI MEE QEON ES Resi EE ER px x qs Lxx NEE p qx pe EEE qe Le EEE Le LX qp an po px L 1x19 gt gt 18 www busse yachtshop de info busse yachtshop de LIEU puueyy Channel Set Frequency CH Usa CAN INT PD Receive Transmit Channel Use mApx sp eo Em 1 X 9 12170000 15710000 FORT OPERATION PONT px 3 5m CC E Em x X ee 15715000 PUBLIC CORRESPONDENCE x x x i99 157200 PUBLIC CORRESPONDENCE Ex x x 1e 17500 PURICCORNSPONDEN
18. rge the battery before storage e Each charge cycle reduces the battery s life Minimise the number of times you charge your battery especially in hotter environments which further shortens a battery s life Battery Pack Precautions Switch the transceiver OFF before charging Charge the battery pack before use Do not recharge the battery pack if it is already fully charged Charge the battery in accordance with the instructions enclosed with your charger Do not charge the transceiver and or battery pack if they are wet The battery pack includes potentially hazardous components Please Do Not disassemble or reconstruct battery Do Not short circuit the battery Do Not incinerate or apply heat to the battery Do Not immerse the battery in water unless attached securely to the radio or get it wet by other means Use only the specified charger and observe charging requirements Do Not pierce the battery with any object or strike it with an instrument Do Not use the battery pack if it is damaged in any way Do Not reverse charge or reverse connect the battery Do Not touch a ruptured or leaking battery If liquids from the battery get into your eyes immediately Wash your eyes out with fresh water amp avoiding rubbing them Seek medical treatment www busse yachtshop de r info busse yachtshop de Battery Charging l Connect the AC adapter to the charger pod The LED status light will illuminate gree
19. t optimum performance from the VOX feature you should use a noise cancelling headset or earpiece microphone see accessory options 10 www busse yachtshop de info busse yachtshop de Tl 5 a e i u Indicator Description mm High power selected 5 Watts Low power Watt The Radio is Transmitting The Radio is Recieving Indicated channel is memorised for scanning Scrambler mode enabled version A amp B only Voice operated transmit mode enabled Indicates the channel set for USA Indicates the channel set for Canadian Indicates the channel set for International NOAA weather channels selected USA amp Canadian waters only A ship to ship channel in USA or Canadian mode Battery life indicator Indicates keypad is locked excluding the PTT H L amp LAMP buttons Private channel number selected Duplex channel selected not simplex Il www busse yachtshop de info busse yachtshop de Attaching amp Removing Accessories To attach an accessory Remove the accessory cover by unscrewing the locking screw anti clockwise leave cover attached or store in a safe place Attach accessory plug to the socket Carefully tighten the locking screw clockwise until finger tight do not tighten with a screwdriver etc S9IJAOSSO22WV To remove an accessory Unscrew the locking screw of the accessory by hand in an anti clockwise d
20. tton for over second activates the key lock To deactivate the key lock press amp hold the button again until the lock removes The Radio s Battery Pack Rechargeable lithium ion battery pack PTT Push To Talk Switch Hold down to transmit release to receive H L Button Press and hold this button for second to toggle between high and low power 1 amp 5 Watts The Accessory Connector Used to attach any HT644 approved accessory LED Indicator Indicates the status of the radio RED Steady Transmitting e RED Flashing slowly Battery needs re charging GREEN Steady Receiving Monitor Button Press to monitor the channel without the squelch mute Antenna Connector Use to attach the antenna of the radio 15 www busse yachtshop de info busse yachtshop de Canadian Channels Description Channels designated as defined and regulated by Industry Canada RIC Marine Communications amp Traffic Services Duplex Transmit and receive on different frequencies Encryption Scrambled audio for extra privacy FM Frequency Modulation International Channels Channel designations as defined for use in international waters by the International Telecommunications Union ITU Marine Channels Special channels reserved for marinas located in selected European countries These channels are pre programmed in the transceiver as Pl amp P2 Private Channels Channels which are assigned
21. ver for any reason Do not transmit while touching the antenna terminal or any exposed metallic parts of the aerial as this may result in a burn Please check and observe regulations in your country with regard to use whilst driving Cleaning your Radio After exposure to any potentially corrosive substance including salt water it is recommended to thoroughly wash the transceiver in fresh water If washing with the battery removed from the radio ensure that the battery is not immersed in water amp that the accessory cap is attached amp clean only with a damp cloth Note Do not wash the transceiver if you suspect the waterproofing seal may be damaged Please return to your supplier for inspection repair End of Life Disposal When your Entel transceiver reaches the end of its useful life please ensure that the unit is disposed of in an environmentally friendly way For country specific information please see www entel co uk recycling www busse yachtshop de info busse yachtshop de Attaching Removing the Aerial 1 To attach carefully align the aerial with the socket Screw in the aerial clockwise taking care not to cross the thread until it is seated firmly with the accessory cover s rubber ring between the aerial amp the the top of the radio Ug ic Oo 9 eu ca 2 To remove unscrew the aerial anti clockwise Attaching Removing Audio Accessories S To attach remov
22. y charge count to indicate when a battery needs replacing Dealer Programmable Features e Key lock button e Prefixed minimum volume level and fixed bleep level e VOX Voice Operated Transmit Function 13 www busse yachtshop de info busse yachtshop de WN Si CO ml ON UI POWER SWITCH amp wx _ SCAN 16 9 IST TEE _ UP DOWN me a AB Fee 0 MEM DMICROPHONE DSPEAKER Power amp Volume Control Powers the radio on and off and controls the volume The Microphone Internal condenser microphone Up Down Buttons Press up down buttons to change channel 16 9 Button A momentary press of the button selects channel 16 and a longer press select channel 9 WX Button Immediately recalls the weather channels Scan Button Starts Stops scanning the memorised channels The MEM Button Memorises a desired channel for scanning The A B Button Provides Instant access to preassigned channels if programmed Speaker The Radio s Speaker 14 www busse yachtshop de info busse yachtshop de O e zi gt O G Ai 2 fe e le UO LAMP a NEN KEY LOCK Tr Bar EH _ Fi H ji PIT AO n ls TO TALK INA ACCESSORY i a CONNECTOR ml H ES E L i 8 MONITOR BUTTON J ANTENNA CONNECTOR BATTERY PACK 10 Lamp Key lock Button Momentarily pressing this button illuminates the LCD display Il 12 13 14 15 16 17 Holding this bu
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