User Guide - HT8/944 & HT942 v10/10 Professional submersible marine handheld transceivers ATEX approved Intrinsically Safe II 2 G Ex ib IIA T4 Gb II 2 G Ex ib IIC T4 Gb Ex ib IIA T4 Gb Ex ib IIC T4 Gb Common Information (all models) HT844 LCD HT944 LCD HT942 Entry
Table of Contents TOC Common Information (all models) Page Certification Introduction Packing List Radio Care Preparing Your Radio For Use Battery Care / Information Optional Accessories Standard Features 2 3 3 3 4 5 and 6 7 and 8 8 HTX44 (Common to both HT844 & HT944) Using Your Radio 9 - Reception - Transmitting 9 9 Channels Functions 10 11 - The Scan Function - VOX (Voice Operate Transmit) 11 11 LCD Indicators Controls Channel Chart 12 13 and 14 15 to 17 HT844 Technical Specifications 18
Certification Declaration of Conformity Certificate We Entel UK Limited of: Entel UK Limited 320 Centennial Avenue Centennial Park Elstree Borehamwood Hertfordshire WD6 3TJ United Kingdom Declares under our sole responsibility that the product range: HT844 / HT944 Series ATEX Handheld Radio Transceiver Conforms to the following standards or other nominative documents: • EN 301 178-2 V1.2.2: 2007, EN 60945:2002, EN60950-1: 2006, in accordance with Directive 1999/5/EC.
Common Introduction The HT844, HT944 & HT942 are professional marine handheld transceivers that operate on the VHF marine band. The HT844 and HT944 have 58 marine international channels and 36 dealer programmable private channels. The 58 marine channels are switchable to comply with International, USA or Canadian regulations, which can be done directly via the radio’s keypad. It has an emergency channel, which can be immediately selected from any channel using the 16 button.
Preparing Your Radio For Use Attaching / Removing the Battery Pack 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 and pull the battery away from the top of the radio.
Common Battery Care / Information Introduction Battery Pack Your Entel radio is supplied with a high performance Lithium-Ion (Li-Ion) battery.
Battery Care / Information For your safety and convenience your transceiver continually monitors the battery pack and gives an indication on the LCD. • 3 Segments: • 2 Segments: • 1 Segment: Fully charged 1 hour 20 mins Note: Only genuine Entel batteries should be used. With Entel batteries customer satisfaction is assured, as you avoid risks from sub standard, potentially dangerous battery packs from 3rd party manufacturers, ensuring it delivers the expected capacity and endurance.
Optional Accessories Common Attaching and 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). 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).
Optional Accessories Other Accessories For complete up to date list of optional accessories visit: www.entel.co.uk The use of non Entel approved accessories will invalidate your ATEX intrinsically safe approval. Refer to certificate Sira 10ATEX 2066X for permitted accessories. Standard Features Standard Features: • Environmentally protected to IP68 i.e.
Using Your Radio Turning the Radio On and Off To turn the radio ON press and hold the red power button until the LCD iluminates and a power on tone is generated after 1 second to indicate the transceiver has passed its self-diagnostic test. To turn the radio OFF press and hold the power button until the LCD displays “POWERING OFF” and its illumination switches off. Using Your Radio HTX44 Before using your radio you may need to adjust the volume on the radio to take in to account background noise.
Channels International (INT), USA and Canadian (CAN) Modes The HT844 / HT944 has 3 different modes: International (INT), USA and Canadian (CAN), which are displayed on the LCD. These modes can be changed by applying the “Change Mode” function to a button. The mode can be selected by pressing the button to toggle through the options and pressing the PTT to select the desired mode.
Functions The Scan Function HTX44 Programming the Scan Function: 1. Select the desired channels to be scanned using the and buttons. 2. Press the [MEM] button to store the channel in the transceiver’s memory. [M] will be displayed on the LCD if the channel is memorised and will be scanned. 3. To add further channels, repeat steps 1 and 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.
LCD Indicators Indicator Description Low power (1 Watt). Indicated channel is memorised for scanning. Voice operated transmit mode enabled. Indicates the channel set for USA. Indicates the channel set for Canadian. Indicates the channel set for International. The Monitor function is enabled. Battery life indicator. Indicates keypad is locked, excluding the PTT. Either P, F or L are displayed as Private channel number selected. Duplex channel selected (not simplex).
Controls 1 2 HTX44 3 4 5 6 7 8 9 10 11 12 13 13 Antenna \ Antenna Connector: Used to attach the antenna of the radio. Accessory Connector: The accessory connector and accessory cover. Encoder: The rotary controller. LCD: The LCD of the radio. Scan Button: Starts / Stops scanning the memorised channels. Up Button: The up button is used to change the channels. Down Button: The down button is used to change the channels. [MEM] Memory Button: The Memory button memorises a desired channel for scanning.
Controls HTX44 14 Orange Button: The orange button, the functionality of which depends on the configuration of the radio (by default long press is region). 15 LED (Light Emitting Diode): The LED indicator, which indicates the status of the radio: • RED Steady = Transmitting • RED Flashing slowly = Battery needs re-charging • GREEN Steady = Receiving • AMBER Steady = Receiving but with incorrect subtone. • AMBER Pulse every 3 s = Radio in standby mode.
Channel Chart CH 1A X S Channel Use PORT OPERATION AND COMMERCIAL 156.05000 1 X X D 160.65000 156.05000 PUBLIC, PORT OPERATIONS 2 X X D 160.70000 156.10000 PUBLIC, PORT OPERATIONS 3A HTX44 Frequency Channel Set S/D Receive Transmit USA CAN INT X S 3 X 4A X 4 5A X 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.
Channel Chart Channel Set Frequency CH USA CAN INT S/D Receive Transmit 22A X X X 22 23A S X D S Channel Use 157.10000 161.70000 157.10000 PORT OPERATION, SHIP MOVEMENT U.S. GOVERNMENT ONLY 157.15000 X D 161.75000 157.15000 PUBLIC CORRESPONDENCE 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.
Channel Chart CH Frequency Channel Set S/D Receive Transmit USA CAN INT X 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.
Technical Specifications GENERAL Frequency Range Channels Channel Spacing 156 - 163.275MHz INT, USA, CAN and Private Channels. 25 kHz Communication Method Simplex / Semi Duplex Antenna High Efficiency Helical Antenna Impedance Battery Type Power Supply Voltage 50 ohm 1800 mAh Li-Ion battery pack 7.4 V DC When transmitting (4W) - 1800mA Current Drain (nominal) When transmitting (1W) - 850mA When receiving (0.5W) - 160mA Duty Cycle Microphone Operating Temperature Size 15 (high) 19 (low) Hours.
Technical Specifications TRANSMITTER Power Output Modulation Oscillator Method Frequency Stability Maximum Deviation Audio Distortion Spurious Emissions HT844 Hum and Noise Selectable: HIGH = 4W, LOW = 1W 16K0G3E PLL < ±0.00025% (±2.5PPM) ±5 kHz < 5% (1 kHz 60%) -68 [dBc] -40 [dB] RECEIVER - Receiver Type Sensitivity Double Super Heterodyne type <0.25uV (12dB SINAD) Frequency Stability ±0.00025%(±2.
Technical Specifications GENERAL Frequency Range Channels Channel Spacing 156 - 163.275MHz INT, USA, CAN and Private channels. 25 kHz Communication Method Simplex / Semi Duplex Antenna High Efficiency Helical Antenna Impedance Battery Type 50 ohm 1800 mAh Li-Ion battery pack Power Supply Voltage 7.4 V DC Battery Life 19 hours.
Technical Specifications TRANSMITTER Power Output Modulation Oscillator Method Frequency Stability Maximum Deviation Audio Distortion Spurious Emissions Hum and Noise 1W 16K0G3E PLL < ±0.00025% (±2.5PPM) ±5 kHz < 5% (1 kHz 60%) -68 [dBc] -40 [dB] RECEIVER Receiver Type HT944 Sensitivity Double Super Heterodyne type <0.25uV (12dB SINAD) Frequency Stability ±0.00025%(±2.
HT942 Standard Features: • 16 programmable channels • Top mounted monitor button • CTCSS & DCS (analogue & digital squelch) with squelch tail elimination (removes the ‘shh’ noise) • Exceptionally loud and clear audio • Robust design, exceeds MIL-STD-810C/D/E/F • Environmentally protected to IP68 i.e.
Controls & Indicators 7 Dealer programmable button 3 Antenna 3 Channel / Scan control 5 Dealer programmable button 1 8 LED indicator 4 Push To Talk (PTT) button 2 Volume control 6 Dealer programmable button 2 Speaker HT9X2 1 On / Off Microphone 1 On / Off button. Press to turn radio on, press and hold to turn off. 2 Press up / down buttons to increase / reduce volume. 3 Channel / Scan control. Rotate to select the desired channel or scan setting. 4 Push To Talk (PTT) button.
Glossary of Terms Term Encryption FM International Channels Marina Channels Private Channels PTT RX Description Channels designated as defined and regulated by Industry Canada, (RIC), Marine Communications and Traffic Services. Transmit and receive on different frequencies. Scrambled audio for extra privacy. Frequency Modulation. Channel designations as defined for use in international waters by the International Telecommunications Union (ITU).
Troubleshooting Troubleshooting SYMPTOM Transceiver is not switching on. The scan key does not start the scan. PROBABLE CAUSE Battery needs charging, Charge the battery pack. Battery is exhausted. Replace the battery pack. No channels memorised (MEM). Squelch is not adjusted. Cannot change any function. Key lock is switched on. The LED on the charger does not illuminate when charging. Dirty terminal contact on battery or charger. Use the MEM key to enter desired channels into scan memory.
Certifcation Certification Certification ATEX approved Intrinsically Safe Sira 10ATEX2066X HT844 HT944 & HT942 II 2 G Ex ib IIA T4 Gb II 2 G Ex ib IIC T4 Gb Ex ib IIA T4 Gb Ex ib IIC T4 Gb Ta = -20°C to + 28°C* or Ta = -20°C to + 40°C* Ta = -20°C to + 28°C* or Ta = -20°C to + 40°C* * Depending on the battery pack fitted. SAFETY NOTES • HT Series V2 ATEX radios must always be used within the terms of their certification • Keep the radios away from aggressive substances.
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.
Notes Notes 28
‘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 Copyright Entel UK Ltd.
