Entel HT-644 VHF Manual
Contents
1. Distortion lt 3 Typical Hum amp Noise 40 dB Audio Output I VV Speaker Size 38 mm 22 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 23 24 lt Intended Country Of E JAT OBE LIBG ECY 1 CZ EDK EC EE ED IFI LIFR LIDE LIGR OHU LIIS LE OIT LILV LLT ILU LIMT INL ONO a CIPE LIPT ORO Copyright Entel UK Ltd 2009 igistered Community Design Ap 3 Design Patent Pending No 2 pyright and Unregistered Desig NG ights reserved Headquarters United Kingdor2. gt 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 I0 weather channels Use the amp C 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 again 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 Use 2 amp Ke buttons to adjust threshold between Ol 16 01 is more sensitive amp 16 is less sensitive Press MEM to store the setting Q I U SIMPLEX DUPLEX CHANNEL USE Your transceiver has been factory programmed in accordance
3. WD RER ER bl es XL pe L 28 ER ol OO ol OO o S Simplex D Duplex R Receive Only 20 o R D 5 5 o A F D ct GENERAL Frequency Range 56 163 275MHz 25 kHz Channel Spacing Specifications Communication Method Simplex Antenna High Efficiency Helical Antenna Impedance 50 ohm Power Supply Voltage 7 4N DC Battery Life 9 Hours Standby 40mA RX 390 mA 1 0 W audio output 1kHz Current Drain nominal Tx Less than A at 2W 0 7A at IW TX 10 RX 1076 Standby 80 Duty Cycle Microphone Internal condenser microphone Operating Temperature 20 C to 60 C Height 130mm 145mm including knobs Width 59 5mm 62mm including protrusions Diameter 37mm 4lmm including battery protrusions Less than 300g 21 TRANSMITTER Frequency Range f e ati ons 156 025 157 425 Power Output Selectable HIGH 5W LOW IW Modulation 16K0G3E Oscillator Method PEL Frequency Stability 2PPM Maximum Deviation 5 kHz Audio Distortion lt 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 lt 0 25uV 12dB SINAD Frequency Stability 2PPM Spurious Rejection 60 dB Adjacent Channel Selectivity 70 dB
4. 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 power 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 Channel Set SID 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 N O NO Co LX qp 9 poppe REL RIS We RE a po LX qe NES ee E E E SENE GENI SA il ECH KIEL SES ee KA NE 9 E LXX qx E GE GE E EN op X px pee DX x qx WERE ee ae ER Ca LEE NEN NN KA LEX LI MEE ee KN KA Resi EE ee LIRE RA RE I e qs bt qx pe Lxx qe Le RSR 4 la Ki e SR ER an po px Cf 1x19 mi Dl Nv gt LIEU PUUEYI Channel Set Frequency CH Usa CAN INT PD Receive Transmit Channel Use palala
5. 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 PI amp P2 Private Channels Channels which are assigned 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 aesso c 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
6. sp ew Em x RER PORT OPERATION SHIP HOVERENT mx e o poo o Em x x ies isse PUBLIC CORRESPONDENCE PA x x eoo ism pusICCONWSONDENCE 5x Xx X E A 75 PUBLIC CORRESPONDENCE D x x x ies aaa PUBIC CORRESPONDENCE m x x x esso iss PUBIC CORRESPONDENCE Cw x x x ie ram PUBIC CORRESPONDENCE re x x ies ims PUBIC TPORT OPERATIONS max x aa o t lx pese aan BumuCWRORTORAWTONS DD EAR ES ERC re x p pense pens PUBIC TPORT OPERATIONS re x L2 975 iss BusucWORTOPAWTONS ep x x p ea oa x A EECHER ey x TS EE Pe sas aa PUBIC PORT OPERATIONS e s er eS IG 1 DL IL ESE x s mem NONEM 000 ec 3 pres pra CTE CREE m x x x3 eme WoNcOMMRCALUWTESHR RT e ew res Channel Chart Channel Set D Frequency USA CAN INT Receive Transmit Channel Use 161 52500 156 92500 157 07500 PORT OPERATION 161 92500 157 32500 161 97500 157 37500 162 02500 157 42500 O I Al ei NT Al NT s ol SP NT NEO KA N so gt E No o O gt KI EN WE a ES zz NE bei KS p EX NE E NN E pep WS m ES EF EX Ea RESA DEI EN E NM LN Es EN co o co co gt gt gt gt E UI e Si R gt gt gt EEES fo Xx OX JS EX A EN LA LX E WS RES ES X1 KA Lx pe E GENE EX XL pop pss HER wq ps X LE o ECH X TX DE J5 ERRESA o S5 EE AERE ECH fe LX LE
7. 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 A V 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 7 m gn Turn the transceiver on by rotating the volume control in a clockwise direction A power on tone is generated after second to indicate the transceiver has passed its self diagnostic test During standby the LED indicator will pulse amber every 3 seconds to further verify its circuitry is functioning correctly Select the desired audio level by further rotating the control clockwise After power on the transceiver will always default to the last channel selected 2 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 3 Select the desired channel using the UP DOWN buttons A full listing of channels can be found on page 17 18 S
8. 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 4 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 EJ nformation Introduction Battery Pack Precautions Your Entel radio is supplied with a high e Switch the transceiver OFF before performance Lithium lon Li lon battery These charging batteries e Charge the battery pack before use e Extend talk time e Do not recharge the battery pack if it is e Reduce the battery s size and weight already fully charged Donot suffer from memory effect that e Charge the battery in accordance with the i the life of Ni Cad and NiMA instructions enclosed with your charger atteries e Do not charge the transceiver and or H o e ave a low toxicity therefore reducing the battery pack if they are wet impact on the environment The battery pack includes potentially Battery Pack hazardous components Please e Ifa battery
9. 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 17 18 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 Hold 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 flas
10. 4 A fully 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 Segment 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
11. 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 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 SI1JOSSIIIY To remove an accessory Unscrew the locking screw of the accessory by hand in an anti clockwise direction 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 110 230v CSBHT 6 way intelligent rapid charger 110 230v CCAHT 230 l way trickle charger with 230V mains adapter CCAHT 110 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 LE752 HT642 HT 648 heavy duty black leather case with strap amp belt loop CLC753 HT644 amp HT649 heavy du
12. HT644 User Guide vI0 10 Professional submersible marine handheld transceivers 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 Page un KO NNO 4 C W QJ N 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 M Austin Date I October 2010 P NEA OM ff OY Quality Manager C ISO 9001 REGISTERED FIRM i U o o Sa The Entel HT644 is a professional marine handheld transceiver that operates on the VHF marine band The HT644 has 58 marine international channels 10 weather amp 36 dealer programmable private channels The 58 marine channels
13. VOX Voice Operated Transmit Press the MEM button amp switch the transceiver on The VOX symbol amp a 0 will flash O 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 get optimum performance from the VOX feature you should use a noise cancelling headset or earpiece microphone see accessory options Tl 5 n e i V 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
14. annels if programmed Speaker The Radio s Speaker N e ot o G Ai g c e UO LAMP SS LE KEY LOCK T Gm ba S I ee d Le KU ji 8 PTT AA PUSH E TO TALK 7 Ci if ACCESSORY li i CONNECTOR E F 4 E W ANTENNA CONNECTOR dt BATTERY PACK 10 Lamp Key lock Button Momentarily pressing this button illuminates the LCD display Il 12 13 14 15 16 17 Holding this button 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 amp 5 Watts The Accessory Connector Used to attach any HT644 approved accessory LED Indicator Indicates the status of the radio e 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 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
15. 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 HT 644 Transceiver CNB750E Rechargeable 1800mAh Li lon battery CBH750 Spring loaded belt clip 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 transceiver 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
16. ed 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 1800mAHLithium 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 ChI6 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 Battery 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 4A Lal N VONxNGtuv _ POWER SWITCH ow fl SCAN e e 169 SIA UP DOWN EE ANB 2 MEM MICROPHONE SPEAKER 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 ch
17. h 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 The Scan Function Select the desired channel to be scanned using the DN amp buttons 2 Press the MEM button to store the channel in the transceiver 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
18. in your country with regard to use whilst driving d CBH750 Spring loaded belt clip CAT XX Antenna e CCA trickle charger included with certain models 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 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 o D o 9 P3 ca 2 To remove unscrew the aerial anti clockwise Attaching Removing Audio Accessories S To attach remove the accessory cover by unscrewing the locking screw anti clockwise leave cover secured under antenna as this provides a
19. is not to be used for an e Do Not disassemble or reconstruct extended period of time e g several battery months remove the battery pack from the e Do Not short circuit the battery equipment and store in a cool and dry e Do Not incinerate or apply heat to the location around 0 C part charged battery Do not fully discharge the battery before Do Not immerse the battery in water storage unless attached securely to the radio or 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 get it wet by other means e Use only the specified charger and observe charging requirements e 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 e Do Not touch a ruptured or leaking battery If liquids from the battery get into your eyes immediately e Wash your eyes out with fresh water amp avoiding rubbing them e Seek medical treatment Battery Charging Connect the AC adapter to the charger pod The LED status light will illuminate green 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
20. ometimes a slight adjustment of the squelch threshold is needed as some channels have a higher noise level than others 4 When receiving a signal the LED indicator illuminates green An RX is also displayed on the LCD 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 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 INT USA amp Canadian Modes 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 I 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
21. ty 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 A 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 microphone with in line PTT CXRI6 750 D shaped earpiece and throat microphone with in line PTT 12 m sa i o o o Q U U lt CHP1 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 protect
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