Entel HT642 User manual

T642
Entry
User Guide – T640 Series v08/08
Common Information
(all models)
T644
LCD
T648
Entry GMDSS
T649
LCD GMDSS
Professional submersible marine handheld transceivers

Common
Introduction
This guide covers the ‘basics’ of your radio’s operation.To meet your exact
requirements the radio may have been customised by your Entel authorised dealer.
These features will be explained in a separate guide issued by the dealer.
1
Table of Contents
Common Information (all mo els) Page
Certification 2
Radio / Battery Care 3
Battery Care / Communications 4
Packing List 5
Optional Accessories 5 & 6
Preparing Your Radio For Use 6 & 7
Using Your Radio T642/ T648 8
Using Your Radio T644/ T649 9
HT642
Feature List 10
Controls & Indicators 11
HT644
Feature List 12
Controls & Indicators 13
LCD Icons 14
HT648 (GMDSS)
Feature List 16
Controls & Indicators 17
HT649 (GMDSS)
Feature List 18
Controls & Indicators 19
LCD Icons 20

2
Common
Certification
Declaration of Conformity
The T64X series transceiver displays "CE" on the serial number label, indicating its
compliance with the essential requirements of the EEC directive for Electromagnetic
Compatibility.
CE Compliance Statement
We Entel UK Limited
OF:
4 Elstree Gate,
Elstree Way
Borehamwood
ertfordshire
WD6 1JD
United Kingdom
Declare under our sole responsibility that the product:-
T640 series V F handheld transceiver
Serial Number________________________________
To which this declaration relates, is in accordance with directive 99/5/EC
and conforms to the following standard or other nominative documents:-
EN 300 086-2 V1.1.1, EN 301 489-1 V1.5.1:2003, EN 60065:2002
Following provisions of the R&TTE directive.
M Austin

3
Common
Radio care
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 & 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 in your
country with regard to use whilst driving
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.
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 NiM batteries
•ave 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.This could lead to a premature
battery replacement warning message. (See
Battery Communications on page 4)
Battery care
•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 securly 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

4
Common
Battery care / information
•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.
•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.
GMDSS Battery (CLB750)
Your CLB750 GMDSS battery is a non
rechargeable lithium ion battery.The battery is
supplied with a security seal that must be
removed before fitting to the radio. An expiry
date is printed on the battery. Do not use this
battery if past the expiry date. Replacement
batteries are available from your local authorised
dealer. If you require assistance where to
purchase please contact Entel for details.
Un er no circumstances must you
attempt to recharge this battery
Battery Communications (exc CLB750
GMDSS battery)
Each battery used with your radio (excluding the
T644) has a microprocessor fitted, which logs the
number of times your battery has been charged. On
a portable radio with an LCD display, the number of
times the battery has been charged, together with
the remaining charge cycles available, will be shown
during switch on (if not de-activated by your dealer).
The warranty on all batteries is 12 months from new,
or 450 charge cycles, whichever is the sooner. After
420 cycles, 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.
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. 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 T 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.
After 450 cycles, at switch on the radio will emit a
series of long beeps, and LCD models the message
will change to BATTERY COUNT EXCEEDED
REPLACE BATTERY. The radio will continue to
operate but its operational time may be reduced,
eventually failing all together.

Common
Packing List
Carry Options
CFC750 T7X2, T7X3 & T7X5 soft leatherette case finished in black with carry strap
CLC752 T7X2 heavy duty black leather case with strap & belt loop
CLC753 T7X3 & T7X5 heavy duty black leather case with strap & belt loop
CLC756 T7X6 heavy duty black leather case with strap & belt loop
CB 750 Spare spring loaded belt clip
Audio Accessory Options
CMP1/750 Compact medium duty speaker microphone with earpiece jack
CMP750 eavy duty submersible speaker microphone
E P9 D-shaped earpiece (plugs into CMP1/750 or CMP750 above)
Tattoo Lightweight Bluetooth earpiece/microphone
X3 Durable, water resistant Bluetooth earpiece/microphone
M10 Ultra small Bluetooth earpice/microphone
BTPTT Small Bluetooth remote press to talk button
EA12/750 D-shaped earpiece with in-line PTT/microphone & VOX*
EA15/750 Earpiece microphone with transparent acoustic tube & VOX*
EA19/750 D-shaped earpiece with boom microphone and in-line PTT & VOX*
E P750 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
CXR16/750 D-shaped earpiece and throat microphone with in-line PTT
5
•T64X Transceiver
•CNB750E Rechargeable 1800mAh Li-Ion battery (May not be included with GMDSS)
•CLB750E Non rechargeable Li-Ion battery (GMDSS only)
•CB 750 Spring loaded belt clip
•CATXX Antenna CCA trickle charger included with certain models
Battery & Charger Options
CNB750E Spare 1800mAh Lithium-Ion battery pack with rear clip
CLB750E Spare 2000mAh Lithium-Ion non-rechargeable battery pack with rear clip (for GMDSS models only)
CSA T 1-way intelligent rapid charger, 110-230v
CSB T 6-way intelligent, rapid charger, 110-230v
CCA230 1-way trickle charger with 230V mains adapter
CCA110 1-way trickle charger with 110V mains adapter
CCA12 1-way trickle charger with cigar lighter lead, 12V DC operation
Optional Accessories

Common
---
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.
Attaching / Removing the Belt Clip
1To attach, locate the clip into the slot on the
back of the battery and slide up until you
hear a “click”.
2To remove, pull the tab (a) towards the belt
clip.Then slide the belt clip -down-wards (b).
Optional Accessories cont...
For complete up to date list of optional accessories visit www.entel.co.uk
12
12
a
b
6
Preparing Your Radio For Use
C P1/750 Light weight single earpiece headset with in-line PTT & VOX*
C P750 S Single earpiece ear defender headset with boom mic and in line PTT for hard hat & VOX*
C P750 D Double earpiece defender headset with boom mic and in line PTT for hard hat &VOX*
C P750D Double earpiece headband defender headset with boom mic and in line PTT & VOX*
C P750BT Bluetooth double earpiece headband defender headset with boom mic and ear cup PTT
CB 750 Spare spring loaded belt clip
* VOX = Voice Operated Transmit (hands free operation)
Simplex/ Duplex Channel Use
Your transceiver has been factory programmed in accordance with 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 selected. 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.

7
Common
Preparing Your Radio For Use cont...
Attaching / Removing the Aerial
1To 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 against the top of the radio.
2To remove, unscrew the aerial
anti-clockwise.
12
Attaching / Removing Audio Accessories
1To attach, remove the accessory cover by unscrewing the
locking screw anti-clockwise (leave cover attached or store in a
safe place).Attach accessory plug by locating over the socket.
Carefully tighten the locking screw clockwise until finger tight
(do not tighten with a screwdriver etc).
2To remove, unscrew 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 cover so as to
protect the socket.
Charging Your Radio
Several charger options are available. Please refer to your
charger user guide.

8
Using Your T642/ T648
On / Off button
Press the on / off button to turn your radio on. A short turn on beep will be heard. To turn off,
press and hold the on / off button until the display extinguishes.
Transmitting on your radio
Before transmitting, ensure that the channel is not in use.To transmit press and hold the PTT
button and speak approximately 35 - 50mm from the microphone on the radio.To receive,
release the PTT button.
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.
Monitor Button
Press the orange monitor button on the top of the radio to defeat the squelch mute. Press again
to return to squelch mute.
Securing Your Radio
You may secure your radio to you using either the supplied CB 750 belt clip or using an
optional leather case.
Channel Scan (dealer programmable feature)
Press the dealer assigned button on the radio to start scan. Press again to return to stop.
Common

9
Common
Scan ( T644/ T649)
1. Select the desired channel to be scanned using the & buttons.
2. Press the [MEM] button to store the channel into 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 1 & 2.
4.To delete a channel from the transceiver’s scan memory, simply press [MEM] button again whilst
the memorised channel is displayed. [MEM] disappears.
5.All channels programmed remain in the transceivers 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 and stops on channels when a transmission is received.
8.To stop the scan at any time, press the [SCAN] key.
Emergency Channel
Channel 16 is used for emergency contact with other vessels. old down the [16] key for 1 second
to select channel 16.
Using Your T644/ T649
Monitor Button
Press the monitor button on the front of the radio to defeat the squelch mute. Press again to re-
turn to squelch mute.
On / Off button
Press the on / off button to turn your radio on. A short turn on beep will be heard. To turn off,
press and hold the on / off button until the display extinguishes.
Transmitting on your radio
Before transmitting, ensure that the channel is not in use.To transmit press and hold the PTT
button and speak approximately 35 - 50mm from the microphone on the radio.To receive, release
the PTT button.
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.
Securing Your Radio
You may secure your radio to you using either the supplied CB 750 belt clip or using an optional
leather case.

HT642
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
•1800mA Lithium-Ion battery for superior operational time
•16 programmable channels
•Full transmit power output 5 Watts
•Exceptionally loud and clear audio
•Top mounted monitor button
•Automatic power save to further increase operational time
•Low battery alert indicates when the battery needs replacing
Dealer programmable features:
•Channel Scan
•Key lock button
•Prefixed minimum volume level and fixed bleep level
10
T642

11
Controls & Indicators
HT642
On / Off button. Press to turn radio on, press and hold to turn off.
Press up / down buttons to increase / reduce volume.
Channel / Scan Control. Rotate to select the desired channel or scan setting.
Push To Talk (PTT) button. Press to speak and release to listen.
Dealer programmable button 1 (ask your dealer for more information).
Dealer programmable button 2 (ask your dealer for more information).
Monitor button. Press button to turn on / off.
LED indicator.
•RED Steady = Transmitting
•RED flashing slowly = Battery needs re-charging
•GREEN Steady = Receiving
•GREEN flashing slowly = Selcall received
•YELLOW Steady = Non valid signal detected
•YELLOW flashing rapidly = Scanning
1
8
7
6
5
4
3
2
Antenna
Dealer
programmable
button 1
5
Push To Talk
(PTT) button
4
Dealer
programmable
button 2
6
On / Off
1
Volume control
2
Speaker
Microphone
Monitor
button
7
LED indicator
8
Channel / Scan /
control
3

HT644
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
•LCD screen to display channel number
•1800mA Lithium-Ion battery for superior operational time
•INT, USA, CAN channels
•Full transmit power output 5 Watts
•Exceptionally loud and clear audio
•Ch 16 shortcut button
•Scan button
•Monitor button
•MEM button
•Automatic power save to further increase operational time
•Low battery alert indicates when the battery needs replacing
Dealer programmable features:
•Key lock button
•Prefixed minimum volume level and fixed bleep level
12
T644

13
HT644
Controls & Indicators
Antenna
/L button
10
Push To Talk
(PTT) button
9
Lamp / key
lock button
8
On / Off button
7
Monitor button
1
Volume control
2
Speaker
Microphone
Scan button
3
Up / down buttons
4
MEM button
5
Ch. 16 button
6
Monitor button. Press to monitor channel.
Volume control
Channel scan button. Press to start / stop channel scanning.
Up / down buttons. Press up / down buttons to change channel.
MEM button. Memorise a desired channel for scanning.
Ch. 16 button. Shortcut button to access channel 16.
On / Off button. Press to turn radio on, press and hold to turn off.
Lamp/key lock button. Momentarily pressing this button illuminates the LCD display. olding this button for
over 1 second activates the key lock.To deactivate press button again.
PTT button. Press & hold to speak. Release to listen.
/L button. Press and hold this button for one second to toggle between high and low power (1 & 5 Watts).
WX button. Immediately recalls the weather channels.
11
10
9
8
7
6
5
4
3
2
1
WX button
11

14
LCD Indicators
•igh power selected (5 Watts)
•Low power (1 Watt)
•Transmit in progress
•Receive in progress
•Indicated channel is memorised for scanning
•Scrambler mode enabled (version A & B only)
•Voice operated mode enabled
•Indicates the channel set for USA
• Indicates the channel set for Canadian
• Indicates the channel set for International
• NOAA weather channels (USA and Canadian waters only)
• A ship-to-ship channel (in USA or Canadian mode)
• Battery life indicator
• Indicates keypad is locked, excluding the PTT, /L and LAMP buttons
• Private channel number selected
• Duplex channel selected (not simplex)
HT644

15
PAGE
INTENTIONALLY
LEFT BLANK

16
T648
HT648
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
•GMDSS (Conforms to Pan European Specification ETS300-225
for the use of radios for Safety at sea
•Non rechargeable Lithium-Ion battery for superior operational time
•16 programmable channels
•Transmit power output 2 Watts
•Exceptionally loud and clear audio
•Top mounted monitor button
•Automatic power save to further increase operational time
•Low battery alert indicates when the battery needs replacing
Dealer programmable features:
•Channel Scan
•Key lock button
•Prefixed minimum volume level and fixed bleep level

17
Controls & Indicators
On / Off button. Press to turn radio on, press and hold to turn off.
Press up / down buttons to increase / reduce volume.
Channel change control, rotate to select the desired channel or scan setting.
Push to talk button, press to speak and release to listen.
Dealer programmable button 1 (ask your dealer for more information).
Dealer programmable button 2 (ask your dealer for more information).
Monitor button. Press to turn monitor on / off.
LED indicator.
•RED Steady = Transmitting
•RED flashing slowly = Battery needs re-charging
•GREEN Steady = Receiving
•GREEN flashing slowly = Non valid signal detected
•GREEN flashing rapidly = Scanning
8
7
6
5
4
3
2
1
HT648
Monitor
button
7
Channel Change
3
Volume control
2
Speaker
Microphone
LED indicator
8
Dealer
programmable
button 1
5
Push To Talk
(PTT) switch
4
Dealer
programmable
button 2
6
On / Off
1
Antenna

HT649
T649
18
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
•GMDSS (Conforms to Pan European Specification ETS300-225 for the use of radios for Safety
at sea
•LCD screen to display channel number
•Non rechargeable Lithium-Ion battery for superior operational time
•255 channel capacity
•Transmit power output 2 Watts
•Exceptionally loud and clear audio
•Ch 16 shortcut button
•Scan button
•Monitor button
•MEM button
•Automatic power save to further increase operational time
•Low battery alert indicates when the battery needs replacing
Dealer programmable features:
•Key lock button
•Prefixed minimum volume level and fixed bleep level

19
Controls & Indicators
HT649
Antenna
Dealer
programmable
button
*
Push To Talk
(PTT) switch
7
Dealer programmable
button
*
On / Off
1
Dealer
programmable
button
*
Volume control
LED indicator
8
Speaker
Microphone
Scan button
3
Channel change
4
MEM button
5
Ch16 button
6
On / Off button. Press to turn radio on, press and hold to turn off.
Monitor button. Press to monitor channel
Channel scan button. Press to start/stop channel scanning.
Channel change buttons. Press up/down buttons to change channel.
Mem button.
Ch 16 button. Shortcut button to access channel 16.
PTT button. Press & hold to speak. Release to listen.
LED indicator.
•RED Steady = Transmitting
•RED flashing slowly = Battery needs re-charging
•GREEN Steady = Receiving
•GREEN flashing slowly = Non valid signal detected
•GREEN flashing rapidly = Scanning
Dealer programmable buttons (ask your dealer for more information).
*
8
7
6
5
4
3
2
1
Monitor button
2