Entel HT 44 Series Setup guide

PREPARING YOUR RADIO FOR USE
Attaching / removing the aerial
Attaching / removing the battery pack
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 rmly with the accessory cover’s
rubber ring between the aerial and the top
of the radio. (A)
2.To remove, unscrew the aerial anti-clockwise.
(B)
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 use any implement or
overtighten). (C)
2.To remove, unscrew the locking screw
anti-clockwise and pull the battery away
from the top of the radio. (D)
A
B
C
D
SWITCHING ON, RECEPTION
AND SWITCHING OFF
1. To switch on, press and hold the on/off
button (1) on the front of the radio.
2.When the radio has passed its diagnostic tests,
it will emit a fanfare tone.
3.The radio will enter standby mode. This is
indicated by the LED Amber ashing once
every 5 seconds, signalling that the radio is
ready for use.
4.Adjust the volume control (2) to select the
desired volume level.
5. Using the channel buttons (3) ensure you have
the correct channel selected.
6.When receiving a valid signal, the LED will
illuminate steady green and audio will be
emitted from the radio’s speaker or audio
accessory (if attached)
7. When nished using the radio, switch off
by pressing and holding the on/off button
(1) until the radio beeps and the LED/LCD is
extinguished.
TRANSMITTING
1. Perform steps 1 through to 5 of Switching On,
Reception and Switching Off.
2.Before transmitting, monitor the channel
and make sure it is clear.
3.When receiving a signal, wait until the signal
stops before transmitting. The transceiver
cannot transmit and receive simultaneously.
4.Press the PTT (Push To Talk) button (4) to begin
your transmission. To conrm transmission the
LED illuminates red.
5. For best transmitted speech quality, you must
talk directly into the radio’s microphone (9) at
around 4cm between your mouth and the radio
complete, the charger.
6.Please note: if you talk into the top of the
radio or with your mouth further away, you will
transmit poor quality speech.
7. When the transmission is nished release the
PTT button.
EU DECLARATION OF CONFORMITY
We. Entel UK Limited of:
320 Centennial Ave, Centennial Park,
Elstree. WD6 3TJ United Kingdom
Tel [phone]
[e-mail]
Declare under our sole responsibility that the
product ranges specied below conform to
the following standards or other nominative
documents;
HT544, HT844 V2 series, HT944 V2 series,
EN 301 178-2 V1.2:2007
EN 60945:2002
EN 60950-1:2006 in accordance with
Directive 1999/5/EC
This declaration is valid for Directive 94/9/EC
until 19 April 2016
This declaration is valid for Directive 2014/34/
EU from 20 April 2016
HT544, HT844 V2 series, HT944 V2 series
EN 60079-0:2012
EN 60079-11:2012
Related certicates:
HT844 V2 series, HT944 V2 series
Sira 10ATEX2066X
HT9XX marking Ex ll 2 G Ex ib llC T4 Gb
HT8XX marking Ex ll 2 G Ex ib llA T4 Gb
HT544
IECEx SIR 10.0097X
Marking Ex ll 2 G Ex ib llA T4 Gb
Sira Certication. Unit 6, Hawarden Industrial
Park,Hawarden, Deeside. CH5 3US, UK
Notied Body No. 0518
Quality Assurance Notication:
Intertek. Intertek House, Leatherhead
KT22 7SB, UK
Notied Body No. 0359
Name: Mike Jamieson
Position: Quality Manager
Date: 1st December 2015
Signed:
www.entel.co.uk
HTx44 Series
HT544 |HT844 | HT944
Quick Start User Guide
Designed in the United Kingdom

Quick Start User Guide V2.1
HTx44 Series
HT544 |HT844 | HT944
INTRODUCTION
The Entel HTx44 series are a range of professional IP68 submersible
marine handheld transceivers that operate on the VHF marine band. They
have 56 marine international channels and 36 dealer programmable private
channels.
This quick guide provides basic guidance for operating your radio.
A full version of this user guide is available to download from our website.
www.entel.co.uk.
To meet your exact requirements the radio may have been customised by
your Entel dealer. These features will be explained in a separate guide
issued by the dealer.
PACKING LIST
HTx44 Marine VHF transceiver
CNBxxx Rechargeable Li-Ion battery
CBH950 Spring loaded belt clip
CCAHT Trickle charger pod
CAT40 High efciency antenna
CWCHT Mains adaptor
OPTIONAL ACCESSORIES
Attaching and removing accessories
To attach an accessory, remove the accessory cover by unscrewing the
locking screw anti-clockwise (leave the cover attached or store in a safe
place).
Plug the accessory into the socket, then carefully
tighten the locking screw clockwise until nger tight
(do not overtighten or use any implement)
To remove an accessory, unscrew the locking
screw of the acc essory by hand in an anti -clock wise
direction.
Ensure you re-t the accessory socket cover (the
radio is not submersible without the socket covered)
BATTERY INFORMATION
Battery charging
1. Connect the AC adapter to the charger pod and plug in.
2.Turn the transceiver off.
3.Insert the battery pack into the charger pod, either with or without the
transceiver attached. The charger LED status light changes to red and
charging begins.
4.When charging is complete, the charger status LED changes from red
to green (a fully discharged battery pack will take approximately 6 hours
to recharge).
A ashing red LED on the charger indicates there is a problem with the
battery. Remove the battery from the charger and consult your Entel Dealer.
CAUTION
BATTERY PACK PRECAUTIONS
• Do not recharge the battery pack if it is already fully charged. Doing so
may cause the life of the battery pack to shorten or the battery pack may
be damaged.
• After charging is complete, remove the battery from the charger. If the
power to the charger is turned off and on again, charging will restart and
the battery will become overcharged.
• Please ensure that the radio is turned off before placing it in the charger
and never switch a radio on whilst in the charger.
• Only use Entel branded battery pack and chargers.
• Do not short the battery terminals or dispose of the battery in a re.
• Do not charge the transceiver and/or battery pack if they are wet.
DANGER
DO NOT DISASSEMBLE OR MODIFY THE BATTERY IN ANY WAY!
Your Entel battery pack incorporates safety circuitry to avoid danger. If the
safety circuitry is damaged or bypassed, or the battery cells are damaged
directly, they may generate extreme heat, smoke, rupture and emit ames.
CONTROLS & INDICATORS
Above approvals apply to specic models only
2
3
7
6
8
1
5
4
5
7 KEY LCD
1. On/Off button. Press and hold to turn the radio on or off
2.Volume control
3.Channel up / down buttons
4.Push To Talk (PTT) button. Press to speak and release to listen
5. Dealer programmable button (ask your dealer for more information).
6.LED Indicator
Red steady - Transmitting
Red ashing slowly - Battery needs recharging
Green - Receiving
7. Change channel mode from INT/USA/CAN
8.MEM Button: Adds or removes the currently selected channel to or
form the scan list
SCAN Button: Starts/stops scanning the channels added to the scan
list plus CH16
16 Button: Toggles between the currently selected channel and
channel 16
MON Button: Short press momentarily opens squelch. Long press
latches squelch open (short press re-sets)
9. Microphone
9
T
a
l
k
H
e
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e

Introduction
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
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
•Do not charge the battery pack in a hazadous area
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 and avoiding
rubbing them.
•Seek medical treatment
Battery Pack
•If a 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 discharge the battery before storage
6
Battery Care / Information
•Each charge cycle reduces the battery’s life. Minimise
the number of times you charge your battery espe-
cially in hotter environments which further shortens a
battery’s life
Battery Charging
1. Connect the AC adapter to the charger pod. The LED
status light will illuminate green indicating ready for
charge
2. Turn the transceiver off
3. Insert the battery pack into the charger pod, either
with or without the transceiver attached. The LED
status light changes from green to red and trickle
charge begins
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.
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-attach (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.
Battery Indicator (HTX44 Only)
For your safety and convenience your transceiver
continually monitors the battery pack and gives an
indication on the LCD.
•3 Segments: Fully charged
•2 Segments: 1 hour
•1 Segment: 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.
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 and
will invalidate the warranty.
Common
PreparingYour Radio For Use
56
a
b
5
Attaching / Removing the Battery Pack
1To 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).
2To remove, unscrew the locking screw
anticlockwise and pull the battery away from the
top of the radio.
12
34
Common
Attaching / Removing Audio Accessories
3To attach, remove 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).
4To 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.

Carry Options
CLC953 Heavy duty black leather case with strap and belt loop.
CBH950 Spare spring loaded belt clip.
Audio Accessory Options
CMP950HD Heavy duty submersible speaker microphone.
EA12/950 D-shaped earpiece with in-line PTT/microphone and VOX*.
EA15/950 Transparent acoustic tube earpiece with in-line PTT/microphone.
EA19/950 D-shaped earpiece with boom microphone and large in-line PTT and VOX*.
EPT40/950 Bone conductive combined earpiece microphone with large in-line PTT.
CXR5/950 Bone conductive skull microphone with large in-line PTT.
CXR16/950 D-shaped earpiece and throat microphone with large in-line PTT.
CHP950HS Single earpiece ear defender headset with boom mic and in line PTT for hard hat andVOX*
CHP950HD Double earpiece defender headset with boom mic and in line PTT for hard hat and VOX*.
CHP950D Double earpiece headband defender headset with boom mic and in line PTT andVOX*.
CXW640 BNC antenna adapter for external aerial connection.
CAT40 Replacement high efficiency helical antenna.
8
Battery and Charger Options
CNB950E Spare 1800mAh Lithium-Ion battery pack with rear clip.
CSAHT 1-way intelligent rapid charger.
CSBHT 6-way intelligent, rapid charger.
CCAHT-230 1-way trickle charger with 230V mains adapter.
CCAHT-110 1-way trickle charger with 110V mains adapter.
CCAHT-12 1-way trickle charger with cigarette lighter lead, 12V DC operation.
Optional Accessories
Common
Battery Communications
(HTX44 Only Excluding ATIS models)
Each battery used with your radio has a microproces-
sor fitted, which logs the number of times your battery
has been charged.
On a radio with an LCD display, the number of times
the battery has been charged, together with the re-
maining charge cycles available, will be shown during
switch on (if not de-activated by your dealer).
The warranty on all batteries is 12 months or 450
charge cycles, whichever is the sooner. After 420 cy-
cles, at switch on the radio will emit a series of short
tones, and on LCD models a waste bin icon will flash to
alert you to the need to buy a new battery.
7
Battery Care / Information
After 450 cycles, at switch on the radio will emit a
series of long warning beeps that indicate the number
fo times the battery has been charged exceeds the
charge count & the battery needs to be replaced.
Note: only genuine Entel batteries should be used.
Only genuine batteries offer the battery charge count
feature informing you when the battery is reaching the
end of its useful life. Non ATEX batteries will not work
on ATEX radios ensuring customer safety.
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). Ensure you re-fit the accessory
cover so as to protect the socket.
Optional Accessories
For complete up to date list of optional accessories visit: www.entel.co.uk
Other Accessories
EPROGHT Programming software and lead (Only available to Authorised Dealers)
PTT950 Waterpoof PTT
PTT951E Waterproof PTT
PTT951C Waterproof PTT
* VOX = Voice Operated Transmit (hands free operation)
The use of non Entel approved accessories will invalidate your ATEX intrinsically safe approval. Refer to
certificate Sira 10ATEX 2066X for permitted accessories.

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.
UsingYour 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.
9
UsingYour Radio
1. Turn the transceiver on using the power button. During standby the LED indicator will pulse
amber every 3 seconds, verifying its circuitry is functioning correctly. Adjust the volume using the
rotary control on top of the radio. After power-on, the transceiver will always default to the last
channel selected.
2. Select the desired channel using the [UP/DOWN] buttons. A full listing of channels can be found
on page 17 to 19.
3. When receiving a signal the LED indicator illuminates green.
Reception
Transmitting
1. Perform steps 1 through 2 of RECEPTION.
2. Before transmitting, monitor the channel and make sure it is clear.
3. For communications over short distances, press the [H/L] button or press & hold the MEM button
to toggle from High Power (4 watts) to Low power (1 watt) denoted by an L on the LCD,
(available on the HT844 only). Transmitting on 1 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 is in
progress, the LCD indicator illuminates TX and the LED illuminates red.
6. Hold the transceiver 1 inch from your mouth and speak slowly and clearly into the microphone.
7. When the transmission is finished release the [PTT] button.
HTX44
HT844 & HT944
10
Standard Features:
•Environmentally protected to IP68 i.e. submersible
to 5 metres for up to 60 minutes
•Robust design, exceeds MIL-STD-810C/D/E/F
•1800 mAH Lithium-Ion battery for superior operational time.
•Exceptionally loud and clear audio
•Automatic power save to further increase operational time
•Low battery alert indicates when the battery needs charging or replacing
•LCD screen to display channel number and current
settings \ status (HTX44 Only)
•INT, USA, CAN channels (HTX44 Only)
•Ch 16 shortcut button
•Scan, Monitor and MEM button
•Battery charge count to indicate when a battery needs replacing.
•Full transmit power output 4 Watts (HT844 only), 1 Watt.
Dealer Programmable Features:
•Key lock button
•VOX (Voice Operated Transmit) Function
•Prefixed minimum volume level and fixed bleep level
Common

12
Functions
The Scan Function
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. All channels programmed remain in the transceiver’s scan memory, even if the power is
switched off.
Using the Scan Function:
Once a Scan list has been programmed, you can start scanning by pressing the [SCAN]
button.The scan proceeds from the lowest to the highest programmed channel number
and stops on channels when a transmission is received.The transceiver will display the
channel number and alias as it is being scanned.
To stop the scan at any time, press the [SCAN] key again.
VOX (Voice Operated Transmit)
In VOX mode the transceiver will react to your voice, and transmit automatically without you
having to press the PTT button when it receives audio above a selected level. There is always a
slight delay for the electronic switching and 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).
Using the VOX Feature:
To use the VOX feature, assign it to a button using the Entel Programmer and a
programming lead. Press the assigned button to enable \ disable it.The VOX symbol will be
displayed on the LCD when the VOX is enabled.
Changing the Sensitivity of the VOX:
To control the sensitivity of the VOX assign the “VOX Level” to a button using the Entel
Programmer. Press the button to display the current level, then use the rotary control on top
of the radio to select the level you wish (the lower the level the lower the sensitivity).Then
press the PTT to select the level and return to normal radio operation.
HTX44
11
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.
Emergency Channels
To select the emergency channel, press the [16] button from any channel. Channel 16 appears on
the display.
To recall the previous channel used, press the [16] button once again.
Monitor Channels
Press the monitor button [MON] to defeat the squelch mute this is displayed as a speaker on
the LCD and release to mute the radio. A long press will hold the squelch mute open until
pressed again to cancel again to return to squelch mute.
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 set
and whether USA, Canadian (CAN), or International (INT) mode is selected.
Refer to the channel charts listed on pages 17 to 19 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.
High \ Low Power Channels (HT844 Only)
To toggle the power level from High (4 watts) to Low (1 watt) press & hold the MEM button, the
power of the channel will be indicated by an H for High or L for Low on the LCD.
HTX44

14
Controls
1 Antenna \ Antenna
Connector: Used to attach the
antenna of the radio.
2 Accessory Connector: The
accessory connector and
accessory cover.
3 Encoder: The rotary controller.
4 LCD: The LCD of the radio.
5 Scan Button: Starts / Stops
scanning the memorised
channels.
6 Up Button: The up button is
used to change the channels.
7 Down Button: The down
button is used to change the
channels.
8 [MEM] Memory Button: The
Memory button memorises a
desired channel for scanning.
9 Monitor Button: Press to
monitor the channel without the
squelch mute.
10 Power Button: Powers the
radio on and off.
11 16 Button: Pressing the button
selects channel 16.
12 Speaker: The radio’s speaker.
13 Microphone: Internal
condenser microphone.
HTX44
13
LCD Indicators
Indicator Description
High power selected (4 Watts) (HT844 model only).
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).
HTX44

16
Channel Chart
HTX44
CH Channel Set S/D Frequency Channel Use
USA CAN INT Receive Transmit
1A XS 156.05000 PORT OPERATION AND COMMERCIAL
1X X D 160.65000 156.05000 PUBLIC, PORT OPERATIONS
2X X D 160.70000 156.10000 PUBLIC, PORT OPERATIONS
3A XS 156.15000 US GOVERMENT, COAST GUARD
3X X D 160.75000 156.15000 PUBLIC, PORT OPERATIONS
4A XS 156.20000 COMMERCIAL FISHING
4XD 160.80000 156.20000 PUBLIC, PORT OPERATIONS
5A X X S 156.25000 PORT OPERATIONS,VTS IN SEATTLE
5XD 160.85000 156.25000 PUBLIC, PORT OPERATIONS
6X X X S 156.30000 INTER-SHIP SAFETY
7A X X S 156.35000 COMMERCIAL
7XD 160.95000 156.35000 PUBLIC, PORT OPERATIONS
8X X X S 156.40000 COMMERCIAL (INTER-SHIP ONLY)
9X X X S 156.45000 BOATER CALLING CHANNEL
10 X X X S 156.50000 COMMERCIAL / INTERSHIP
11 X X X S 156.55000 COMMERCIAL / PORT OPERATIONS
12 X X X S 156.60000 PORT OPERATION
13 X X S 156.65000 INTER-SHIP NAVIGATION SAFETY
13 XS 156.65000 INTER-SHIP NAVIGATION SAFETY
14 X X X S 156.70000 PORT OPERATION
15 XR 156.75000 - SHIP MOVEMENT
15 X X S 156.75000 SHIP MOVEMENT \ INTERSHIP
16 X X X S 156.80000 INTERNATIONAL DISTRESS
17 X X X S 156.85000 STATE CONTROLLED \ INTERSHIP
18A X X S 156.90000 COMMERCIAL
18 XD 161.50000 156.90000 PORT OPERATION, SHIP MOVEMENT
19A X X S 156.95000 COAST GUARD
19 XD 161.55000 156.95000 PORT OPERATION, SHIP MOVEMENT
20A XS 157.00000 PORT OPERATION
20 X X D 161.60000 157.00000 PORT OPERATION AND SHIPMENT
20 XD 161.60000 157.00000 PORT OPERATION AND SHIPMENT
21A X X S 157.05000 U.S. GOV, CANADIAN COST GUARD
21 XD 161.65000 157.05000 PORT OPERATION, SHIP MOVEMENT
15
Controls
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.
16 Battery Screw: The screw used to attach or remove the battery.
17 Belt Clip: The spring loaded belt clip, which can be used to attach the radio to your belt.
18 Upper Side Button: The upper function button, the functionality of which depends on the
configuration of the radio (by default press to PTT).
19 PTT: The PTT (Press To Talk) button, hold down to transmit, release to receive.
20 Lower Side Button: The lower function button, the functionality of which depends on the
configuration of the radio (by default long press key lock).
21 Battery: The rechargeable lithium-ion battery pack.
HTX44

18
Channel Chart
CH Channel Set S/D Frequency Channel Use
USA CAN INT Receive Transmit
74 X 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 X S 156.87500 PORT OPERATIONS
77 XS 156.87500 PORT OPERATIONS \ INTERSHIP
78A X X S 156.92500 NON-COMMERCIAL
78 XD 161.52500 156.92500 PUBLIC \ PORT OPERATIONS
79A X X S 156.97500 COMMERCIAL
79 XD 161.57500 156.97500 PORT OPERATION, SHIP MOVEMENT
80A X X S 157.02500 COMMERCIAL
80 XD 161.62500 157.02500 PORT \ SHIP MOVEMENT
81A X X S 157.07500
81 XD 161.67500 157.07500 PORT OPERATION
82A X X S 157.12500
82 XD 161.72500 157.12500 PUBLIC \ PORT OPERATIONS
83A X X S 157.17500
83 X X D 161.77500 157.17500 PUBLIC CORRESPONDENCE
84A XS 157.22500 PUBLIC CORRESPONDENCE
84 X X X D 161.82500 157.22500 PUBLIC \ PORT OPERATIONS
85A XS 157.27500 PUBLIC CORRESPONDENCE
85 X X X D 161.87500 157.27500 PUBLIC CORRESPONDENCE
86A XS 157.32500 PUBLIC CORRESPONDENCE
86 X X X D 161.92500 157.32500 PUBLIC CORRESPONDENCE
87A XS 157.37500 PUBLIC CORRESPONDENCE
87 X X D 161.97500 157.37500 PUBLIC CORRESPONDENCE
87 XS 157.37500 PUBLIC CORRESPONDENCE
88A XS 157.42500 COMMERCIAL
88 X X D 162.02500 157.42500 PUBLIC CORRESPONDENCE
88 XS 157.42500 PUBLIC CORRESPONDENCE
Key:
•S = Simplex.
•D = Duplex.
•R = Receive Only.
17
Channel Chart
HTX44
CH Channel Set S/D Frequency Channel Use
USA CAN INT Receive Transmit
22A X X S 157.10000
22 XD 161.70000 157.10000 PORT OPERATION, SHIP MOVEMENT
23A XS 157.15000 U.S. GOVERNMENT ONLY
23 X X D 161.75000 157.15000 PUBLIC CORRESPONDENCE
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 157.40000 PUBLIC CORRESPONDENCE
37 XS 157.85000 MARINA CHANNEL
60 X X D 160.62500 156.02500 PUBLIC \ PORT OPERATIONS
61A X X S 156.07500 -
61 XD 160.67500 156.07500 PUBLIC \ PORT OPERATIONS
62A XS 156.12500 -
62 XD 160.72500 156.12500 PUBLIC \ PORT OPERATIONS
63A XS 156.17500 PORT OPERATIONS
63 XD 160.77500 156.17500 PUBLIC \ PORT OPERATIONS
64A X X S 156.22500
64 X X D 160.82500 156.22500 PUBLIC \ PORT OPERATIONS
65A X X S 156.27500 PORT OPERATIONS
65 XD 160.87500 156.27500 PUBLIC \ PORT OPERATIONS
66A XS 156.32500 PORT OPERATIONS
66A XS 156.32500 PORT OPERATIONS
66 XD 160.92500 156.32500 PUBLIC \ PORT OPERATIONS
67 X X S 156.37500 INTERSHIP
67 XS 156.37500
68 X X X S 156.42500 NON-COMMERCIAL
69 X X X S 156.47500 INTERSHIP
70 X X X R 156.25000 - DIGITAL SELECTIVE CALLING
71 X X X S 156.57500 PORT OPERATIONS
72 X X X S 156.62500 NON-COMMERCIAL \ INTERSHIP
73 X X X S 156.67500 INTERSHIP
HTX44

HT942
20
Controls & Indicators
3Channel / Scan
control
Antenna
5Dealer
programmable
button 1
4Push To Talk
(PTT) button
6Dealer
programmable
button 2
1On / Off
2Volume control
Speaker
Microphone
1On / Off button. Press to turn radio on, press and hold to turn off.
2Press up / down buttons to increase / reduce volume.
3Channel / Scan control. Rotate to select the desired channel or scan setting.
4Push To Talk (PTT) button. Press to speak and release to listen.
5Dealer programmable button 1 (ask your dealer for more information).
6Dealer programmable button 2 (ask your dealer for more information).
7Dealer programmable button 3 (ask your dealer for more information).
8LED indicator.
•RED steady = Transmitting
•RED flashing slowly = Battery needs re-charging
•GREEN steady = Receiving
•YELLOW steady = Non valid signal detected
•YELLOW flashing rapidly = Scanning
7Dealer
programmable
button 3
8LED indicator
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. submersible to 5 metres for up to 60 minutes
•1800mAH Lithium-Ion battery for superior operational time
•Full band switching allows access to all channels in each band
•Battery charge count
•Radio cloning mode
•Low battery alert indicates when the battery needs recharging
Dealer programmable features:
•VOX for hands free operation
•High / Low transmit power
•Normal & priority scan (programmable per channel position)
•Panic (personal attack) button causes high pitch, high volume, siren tone to be emitted from the
radio’s speaker
•Key lock button
•Prefixed minimum volume level and fixed bleep level
•Talkaround (allows communication away from a base station)
•Transmit time out-timer (ensures channels are not blocked)
•Voice scrambler with 1 code per channel (option)
•Automatic power save to further increase operational time
•User adjustable squelch level
HT942
19
HT942

22
Technical Specifications
Tech Specs
Tech Specs
Technical Specifications
21
GENERAL
HT942 HT844 HT944
Frequency Range 156 - 163.275MHz 156 - 163.275MHz
Channels 16 INT, USA, CAN and Private channels.
Channel Spacing 12.5 / 25 kHz 25 kHz
Communication Method Simplex / Semi Duplex
Antenna High Efficiency Helical
Antenna Impedance 50 ohm
Battery Type 1800 mAh Li-Ion battery pack
Power Supply Voltage 7.4 V DC
Battery Life 19 hours.
Duty Cycle Transmit: 5%, Receive: 5%, Standby: 90%
Microphone Internal condenser microphone
Operating Temperature -20°C to +55°C
Size
Height = 130mm (145mm including knobs);
Width = 59.5mm (62mm including protrusions);
Diameter = 37mm (41mm including battery protrusions)
Weight 277g with battery and aerial
HT942 HT844 HT944
Power Output H= 5W, L=1W H=4W , L=1W 1W
Modulation 8K0F3E / 16K0G3E 16K0G3E
Oscillator Method PLL
Frequency Stability < ±0.00025% (±2PPM) < ±0.00025% (±2.5PPM)
Maximum Deviation ±2.5 kH \ ±5 kHz ±5 kHz
Audio Distortion < 5% (1 kHz 60%)
Spurious Emissions -68 [dBc]
Hum and Noise -40 [dB]
TRANSMITTER
HT942 HT844 HT944
Receiver Type Double Super Heterodyne type
Sensitivity <0.25uV (12dB SINAD)
Frequency Stability ±0.00025%(±2.5PPM)
Spurious Rejection -60 dB
Adjacent Channel Selectivity -60 dB / -70 dB -70 dB (Wide)
Distortion < 3% Typical
Hum and Noise -40 dB
Audio Output 1W
Speaker Size 38 mm
RECEIVER

24
Troubleshooting
Troubleshooting
SYMPTOM PROBABLE CAUSE REMEDY
Transceiver is not switching
on.
Battery needs charging, Charge the battery pack.
Battery is exhausted. Replace the battery pack.
The scan key does not start
the scan.
No channels memorised
(MEM).
Use the MEM key to enter
desired channels into scan
memory.
Squelch is not adjusted.
Adjust the squelch to threshold
or to the point where the white
noise just disappears.
Cannot change any function. Key lock is switched on. Turn key lock off.
The LED on the charger
does not illuminate when
charging.
Dirty terminal contact on
battery or charger.
Clean contacts with dry clean
cloth.
Defective battery or charger. Contact your dealer.
No transmit or cannot select
high power.
Some channels are low
power only. Change to high power channel.
Battery pack exhausted. Charge / replace the battery.
Transceiver transmits
without pressing PTT button.
VOX has been enabled.
Assign VOX to a button and
toggle OFF.
Buttons seem to work
intermittently.
23
Glossary of Terms
Term Description
Canadian
Channels
Channels designated as defined and regulated by Industry Canada,
(RIC), Marine Communications and 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).
Marina
Channels
Special channels reserved for marinas located in selected European
countries.These channels are pre-programmed in the transceiver as
P1 and P2.
Private
Channels
Channels which are assigned by regulatory agencies governingVHF
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 (FCC).
VOX Voice Operated Transmit.
VHF Very High Frequency (30MHz to 300 MHz).
Glossary

26
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
Certification
Certification
ATEX approved
Intrinsically Safe
Sira 10ATEX2066X
SAFETY NOTES
•HT Series V2 ATEX radios must always be used within the terms of their certification
•Keep the radios away from aggressive substances. If used in a hostile environment, extra
protection may be needed
•To prevent ignition of hazardous atmospheres, batteries must only be charged in an area
known to be non-hazardous
•Use of battery chargers other than the Entel charger supplied will invalidate the explosion
protection certification
•No unauthorised repairs are permitted
•This equipment is designed and manufactured to protect against other hazards as defined in
paragraph 1.2.7 of ATEX Annex II of the Directive 94/9/EC
•Radios fitted with a CNB940E battery pack must not be used outside of the ambient
temperature range Tamb = -20ºC to +28ºC
•Radios fitted with a CNB950E battery pack must not be used outside of the ambient
temperature range indicated on the battery pack label
25
HT844 HT944 & HT942
* Depending on the battery pack fitted.
II 2 G Ex ib IIA T4 Gb
Ex ib IIA T4 Gb
Ta = -20°C to + 28°C* or
Ta = -20°C to + 40°C*
II 2 G Ex ib IIC T4 Gb
Ex ib IIC T4 Gb
Ta = -20°C to + 28°C* or
Ta = -20°C to + 40°C*
Certifcation

‘the
choice’
professional’s
Headquarters: United Kingdom www.entel.co.uk
Copyright Entel UK Ltd. 2009
<Intended Country Of Use>
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
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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
27
Notes
Notes