Entel HT644 HT Series Marine Analogue Two Way Radios Owner’s Manual

: June 3, 2024
: Entel

Table of Contents

Why Entel HT Commercial Marine portables?
Model Selection
Technical Specification
Accessories
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Entel HT644 HT Series Marine Analogue Two Way Radios Owner’s Manual

Rugged, designed for gloved hand use and with exceptionally loud audio, Entel’s HT Commercial Marine portable radios are specifically designed to withstand the everyday rigours of the Maritime workplace.

With over 20-Years’ experience exceeding the demands of the Maritime Workplace, Entel offers the most complete and established range of Commercial Marine portable radios available. Versions include: VHF, UHF, GMDSS, ATIS & Intrinsically Safe (ATEX IIA, IIC & IECEx).

Why Entel HT Commercial Marine portables?

Superior voice quality and volume
IP68 (2 metres depth for 4 hours) submersible
MIL-STD 810/C/D/E&F standard robust construction
High capacity (2000 mAh) Li-Ion batteries as standard
Established & proven portables based on over 20-Years’ experience

Superior Audio

Using the latest compander noise reduction technology, Entel’s Commercial Marine portables deliver loud & crisp audio no matter what environment you are in.

Commercial Grade Construction

Exceeding MIL-STD 810C/D/E/F rating, the HT Series 2.0 is designed to withstand shock, vibration, dust and moisture, ensuring a tough enduring performance and many years of trouble free use, even in the most hostile environments.

Intelligent Li-Ion Battery

Entel’s Lithium-Ion Batteries provide the following key advantages:

Extended Talk Time – The 2000mAh capacity of Entel’s Lithium-Ion batteries is up-to double that of other makes, therefore ensuring maximum talk-time.

Li-Ion Chemistry – Entel’s Li-Ion batteries are not prone to the dreaded memory effect that Ni-Cad and Ni-MH battery packs suffer from. This ensures that you always have a good charge every time you take the battery from its charger.

2 Metres, 4 Hours Submersible
Conforming to IP68 standard, the HT Series 2.0 offers the highest submersibility rating of any manufacturer. This unique Series protects against corrosion, withstanding total immersion in water to a depth of 2 metres for 4 hours to protect against the likely hazards encountered in any field of operation.

Intrinsically Safe

ATEX Approved IIC – The HT900 range of ATEX certified portables meet IIC T4.

ATEX Approved IIA – For those users not restricted to the IIC 1 watt regulatory classification.

IECEx Approval – The HT500 range of intrinsically safe certifi ed portables are suitable for those users who do not need to comply with the European ATEX standard.

**GMDSS MED

**

Entel’s HT649 GMDSS portable is MED certifi ed and carries the essential Wheel Mark logo. Designed for those requiring a full featured and outstandingly tough GMDSS portable, the HT649 is one of the most advanced MED certified GMDSS portables available

The HT649 is available in two packages:

Pack 1 includes HT649 radio & Primary (emergency) battery.
Pack 2 as Pack 1 plus Secondary (rechargeable) battery and charger

Model Selection

|

LCD
GMDSS

---|---|---|---|---|---|---|---
| VHF Marine INT/USA/CAN| EU| H1642| | HT644| HT644 ATIS| HT649
NOT INTRINSICALLY SAFE| –| –| –| –| –| –| –
Marine UHF| EU| HT782M| HT783M| | |
–| –| –| –| –| –| –
Marine UHF| NON EU| HT782E| HT783E| –| –| –
ATEX IIC INTRINSICALLY SAFE| VHF Marine INTAISA/CAN| EU| 111942| | H1944 111944 ATIS| –| –
–| –| –| –| –| –| –
| –| | –| –| –| –
Marine UHF| EU| 111982| H1983| –| –| –
Icon ATEX IIA INTRINSICALLY SAFE| VHF Maine INT/USA/CAN| EU| 111842| | 141844 H1844 ATIS| –| –
–| –| –| –| –| –
Marine UHF| EU| 111882| H1883| –| –| –
Icon IECEx INTRINSICALLY SAFE| VHF Marine INT/USA/CAN| NON EU| HT542| | HT544| –| –
Marine UHF| NON EU| H1582| 111583| –| –| –
GMDSS APPROVED| VHF Marine| EU| –| –| –| –| HT649
IP68 2 METRES FOR 4 HOURS SUBMERSIBLE| | ✓| ✓| ✓| ✓| ✓|
MIL-STD 810 C/D/E/F| | ✓| ✓| ✓| ✓| ✓|
HIGH-CAPACITY LI-ION BATTERY| | ✓| ✓| ✓| ✓| ✓|
FLASH UPGRADABLE (TO ADD NEW FEATURES)| | ✓| ✓| ✓| ✓| ✓|
CHANNEL CAPACITY| | 16| 255| IN T/USA/
CAN| INT/USA/CAN| INT/USA/CAN|
PRIVATE CHANNELS| | ✓| ✓| ✓| ✓| ✓|
LOW BATTERY WARNING| | ✓| ✓| ✓| ✓| ✓|
CHANNEL NAMING| | –| ✓| –| ✓| –|
VOX (HANDS FREE OPERATION)| | ✓| ✓| ✓| ✓| ✓|

Technical Specification

General Specification

Frequency range VHF	156 to 163.275MHz (INT, USA. CAN)
Frequency range UHF	400 to 470MHz
Frequency range UHF UP Band	450 to 520MHz
Channel Spacing	VHF — 25KHz

UHF — 25KHz / 12.5KHz

Transmitter

Power Output HT6 Series	5W / 1W
Power Output HT7 Series UHF	2W / 1W – non EU 4W / 1W
Power Output HT9 Series	1W
Power Output HT5, HT8 Series VHF	4W / 1W
Power Output HT5, HT8 Series UHF	2W / 1W
Sensitivity	Better than -118dBm 12dB Sinad
Rated Audio Output	1W
Intermodulation	-42dBm
Adjacent Channel Selectivity	60 / 70 (12.5 / 25KHz)
Spurious Response Rejection	-37dBm
Spurious Radiations	2.0nW/20nW <1GHz/>1GHz

Dimensions are based upon a radio with an attached battery, excluding Knobs, antenna and protrusions.
For a full & detailed specification, please visit our website

Accessories

Supplied package includes:
2000mAh Li-Ion battery pack, charger, spring loaded belt clip, high efficiency antenna & quick start user guide (ATEX & IECEx models are supplied with an 1800mAh 7.4v Li-Ion Battery)

HT649 GMDSS can be supplied in different package combinations, please consult your dealer.