HT644 User Guide v07/11 Professional submersible marine handheld transceivers HT644 LCD www.busse-yachtshop.de | info@busse-yachtshop.
Table of Contents TOC Topic Page 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 2 3 3 3 4 5&6 7 7 7 8&9 10 10 10 11 12 & 13 13 14 & 15 16 17 18 & 20 21 & 22 23 & 24 1 www.busse-yachtshop.
Introduction We Entel UK Limited of: 320 Centennial Avenue Centennial Park Elstree Borehamwood Hertfordshire WD6 3TJ 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: • EN 301 178-2 V1.2.2: 2007-02, EN 60945:2002, EN60950-1: 2006, in accordance with Directive 1999/5/EC. Serial Number________________________________ M Austin Date: 1 October 2010 Quality Manager 2 www.
Introduction Introduction 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 & 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.
Preparing Your Radio For Use Attaching / Removing the Aerial 2 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 & the the top of the radio. 2 To remove, unscrew the aerial anti-clockwise.
Battery Battery Care / Information Introduction Battery Pack Precautions Your Entel radio is supplied with a high performance Lithium-Ion (Li-Ion) battery. These batteries: • Extend talk time • Reduce the battery’s size and weight • Do not suffer from ‘memory effect’ that reduces the life of Ni-Cad and NiMH batteries • Have a low toxicity, therefore reducing the impact on the environment • • • • • The battery pack includes potentially hazardous components.
Battery Care / Information Battery Indicator 1. Connect the AC adapter to the charger pod. The LED status light will illuminate green indicating ready for charge For your safety and convenience your transceiver continually monitors the battery pack and gives an indication on the LCD: • 3 Segments: 12 hours • 2 Segments: 1 hour • 1 Segment: 20 mins 2. Turn the transceiver off 3. Insert the battery pack into the charger pod, either with or without the transceiver attached.
Channels Using Your HT644 Turning The Radio On & Off Turn the ON/OFF control on the top of the radio clockwise until the LCD iluminates & 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. Reception 1.
Channels INT, USA & Canadian Modes NOAA Weather Channels (Applicable to version A model only) 1. To receive a weather channel, press the [WX] key. The transceiver enters into weather channel mode. 2. There are 10 weather channels. Use the & 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.
Channels Channels 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.
Functions The Scan Function VOX (Voice Operated Transmit) Press the [MEM] button & switch the transceiver on. The VOX symbol & a "0" will flash. "0" indicates VOX is switched off, 1 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.
LCD LCD Indicators Indicator Description High power selected (5 Watts) Low power (1 Watt). The Radio is Transmitting. The Radio is Recieving. Indicated channel is memorised for scanning. Scrambler mode enabled (version A & 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 & Canadian waters only). A ship-to-ship channel (in USA or Canadian mode).
Optional Accessories Attaching & Removing Accessories 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. Battery & Charger Options CNB750E CLB750G CSAHT CSBHT CCAHT-230 CCAHT-110 CCAHT-12 Spare 1800mAh Lithium-Ion battery pack with rear clip Spare 2000mAh Lithium Manganese non-rechargeable battery with rear clip.
Optional Accessories Accessories CHP1/750 Light weight single earpiece headset with in-line PTT & VOX* CHP750HS Single earpiece ear defender headset with boom mic and in line PTT for hard hat & VOX* CHP750HD Double earpiece defender headset with boom mic and in line PTT for hard hat & VOX* CHP750D Double earpiece headband defender headset with boom mic and in line PTT & VOX* CHP750BT Bluetooth double earpiece headband defender headset with boom mic and ear cup PTT CBH750 Spare spring loaded belt clip * VOX
Controls Controls 1 2 3 4 5 6 7 8 9 Power & 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.
Controls Controls 10 Lamp / Key lock Button: Momentarily pressing this button illuminates the LCD display. Holding this button for over 1 second activates the key lock. To deactivate the key lock press & hold the button again until the lock removes. 11 The Radio’s Battery Pack: Rechargeable lithium-ion battery pack. 12 PTT (Push To Talk Switch): Hold down to transmit, release to receive. 13 H/L Button: Press and hold this button for 1 second to toggle between high and low power (1 & 5 Watts).
Glossary of Terms Term Encryption Channels designated as defined and regulated by Industry Canada, (RIC), Marine Communications & Traffic Services. Transmit and receive on different frequencies. Scrambled audio for extra privacy. FM International Channels Marine Channels Frequency Modulation. Channel designations as defined for use in international waters by the International Telecommunications Union (ITU). Special channels reserved for marinas located in selected European countries.
Troubleshoot Troubleshooting SYMPTOM Transceiver not switching on The scan key does not start the scan PROBABLE CAUSE Battery needs charging or battery is exhausted REMEDY Charge the battery pack replace the battery pack Use the MEM key to enter desired channels into scan No channels memorised memory. Adjust the squelch to (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 Defective battery or charger.
Channel Chart 1A Frequency Channel Set S/D Receive Transmit USA CAN INT X 1 2 3A S X D 160.65000 156.05000 PUBLIC, PORT OPERATIONS X X D 160.70000 156.10000 PUBLIC, PORT OPERATIONS X S X 4A X 4 X PORT OPERATION AND COMMERCIAL 156.05000 X 3 5A Channel Use X D X D X D X S 156.30000 INTER-SHIP SAFETY S 156.35000 COMMERCIAL S X 5 6 X X 7A X X 7 US GOVERMENT, COAST GUARD 156.15000 S X D 160.75000 156.15000 PUBLIC, PORT OPERATIONS COMMERCIAL FISHING 156.
Channel Chart Channel Chart Channel Set Frequency CH USA CAN INT S/D Receive Transmit 22A X X 23A S X 22 X D S Channel Use 157.10000 161.70000 157.10000 PORT OPERATION, SHIP MOVEMENT U.S. GOVERNMENT ONLY 157.15000 X X D 24 X X X D 161.80000 157.20000 PUBLIC CORRESPONDENCE 25 X X X D 161.85000 157.25000 PUBLIC CORRESPONDENCE 26 X X X D 161.90000 157.30000 PUBLIC CORRESPONDENCE 27 X X X D 161.95000 157.35000 PUBLIC CORRESPONDENCE 28 X X X D 162.00000 157.
Channel Chart Frequency Channel Set S/D Receive Transmit USA CAN INT X Channel Use 74 X X S 156.72500 PORT OPERATIONS 75 X X S 156.77500 PORT \ GUARD CHANNELS 76 X X S 156.82500 PORT \ GUARD CHANNELS 77 X S 156.87500 PORT OPERATIONS S 156.87500 PORT OPERATIONS \ INTERSHIP S 156.
Specifications Technical Specifications GENERAL Frequency Range 156 - 163.275MHz Channel Spacing 25 kHz Communication Method Simplex Antenna High Efficiency Helical Antenna Impedance 50 ohm Power Supply Voltage 7.4 V DC Battery Life Current Drain (nominal) 8 Hours Standby 40mA; RX: 390 mA; 1.0 W audio output (1kHz) TX: Less than 1 A at 2W, 0.7 A at 1W.
Technical Specifications Frequency Range Power Output Modulation Oscillator Method 156.025 - 157.425 Selectable: HIGH = 5W, LOW = 1W 16K0G3E PLL Frequency Stability ±2PPM Maximum Deviation ±5 kHz Audio Distortion Spurious Emissiong Hum & Noise < 5% (1 kHz 60%) -55db -40 [dB] RECEIVER Frequency Range Receiver Type Sensitivity 156 - 163.275MHz Double Super Heterodyne type <0.
Notes Notes 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 www.busse-yachtshop.de | info@busse-yachtshop.
Notes Notes 24 www.busse-yachtshop.de | info@busse-yachtshop.
‘the professional’s AT BE BG CY CZ DK EE FI FR DE GR HU IS IE IT LV LT LU MT NL NO PL PT RO SK SI ES SE CH UK Registered Community Design Application 000810890 U.S. Design Patent Pending No. 23/182,829 Copyright and Unregistered Design Right Entel UK 2009 All rights reserved Headquarters: United Kingdom www.entel.co.uk www.busse-yachtshop.de | info@busse-yachtshop.de Copyright Entel UK Ltd.
