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ENTEL HT-844 ATEX IIA Portable VHF

entel_logo HT 844

HT844 ATEX IIA INTRINSICALLY SAFE Marine Portable VHF
Submersible to IP68 (5 metres for 1 hour)
156 - 163.275MHz INT, USA, CAN Marine Channels
ATEX IIA RF output power 5W

ex logo IIA

The HT844 portable is designed to withstand the every day rigours of life at sea, with superior MIL-STD 810/C/D/E/F construction and IP68 submersibility making them the most robust and durable marine portables on the market.

The HT844 is supplied preprogrammed with all INT, USA and CAN channels.

HT649 HT649  

 

As standard the HT844 is supplied with:
  • CNB950E - ATEX approved 7.4v, 1800mAh rechargeable Lithium-Ion battery pack
  • Trickle charger
  • CBH950 - ATEX approved spring loaded belt clip
  • High efficiency helical antenna
  • User manual

General Features

Entel is the first manufacturer to offer the superior IP68 specification, whereby we ourselves determine at what depth and for how long our equipment must remain waterproof. Not content with just the standard IP67 entry-level (1 metre for 30 minutes) Entel's IP68 HT series is certified as waterproof-submersible to an unprecedented depth of 5 metres for 60 minutes. Aware that the smallest tolerances of case size and material variation alone could compromise your radio's waterproof integrity, uniquely, each individual Entel portable is tested on a custom-built air pressure test-jig to ensure it meets the exacting high standards we have set for ourselves.

 

Meeting MIL-STD 810C/D/E/F commercial grade construction for tough, enduring performance, the Entel's HT and HX series 2.0 portables conform to stringent standards, enabling them to withstand the everyday rigours of shock, vibration and the corrosive effects of dust and moisture, ensuring many years of trouble free use in the most hostile environments.

 

All Entel portables come with the latest intelligent Lithium-Ion battery technology as standard. Whichever model you choose, these batteries will count the number of completed charge cycles, which on LCD variants, if dealer enabled, can be displayed when you power-on your radio. For your convenience it will even alert you to imminent battery life expiration. Another advantage of Lithium-Ion battery technology is the way it maximizes duty cycles, while the elimination of memory effect means there is no need to fully discharge the cells before recharging. Therefore you are assured a full duty cycle each and every time you take your radio from its charger.

Entel proposes to continuously add/upgrade features to its range of radios. Using Flash Upgrade technology your radios can be upgraded by your Dealer at any time.

The entry model comes with 255 channels. These can be any combination of INT, USA, CAN or private channels.

Both HT and HX series portables have the facility to scan for an active channel. When an active channel is found, the radio will automatically select that channel for you. Priority scan will allow you to select one channel in the scan list that is treated as a "Priority". It will be checked more frequently than all other channels in the list.

Speaks the channel number and basic settings so you can operate the radio without having to look at it.

Allows you to connect a Bluetooth audio or data accessory.

Allows you to easily configure another radio to match your system.

When you attach a VOX enabled audio accessory you can operate totally hands free. All you need to do is talk and your Entel radio will automatically transmit for you.

When you do eventually use almost all the charge in your battery your radio will conveniently let you know it is time to change or recharge your battery.

Whichever model you choose, these batteries will count the number of completed charge cycles, which on LCD variants, if dealer enabled, can be displayed when you power-on your radio. For your convenience it will even alert you to imminent battery life expiration. If you opt for a system of non-display portables then we recommend that you have at least one model with a display in order to take advantage of this unique feature.

Used to encrypt your voice, protecting against casual eavesdropping.

Accessories

Optionally the following accessories are available:

CNB850E CNB850E – Lithium–Ion battery pack for the HT U.S.T.C series hand portable radio. The CNB850E is an 1800mAH Lithium–Ion lightweight battery pack for the HT U.S.T.C series of hand portable radios. The Lithium–Ion technology gives the radio a long operating time and the batteries will not suffer from the ‘memory effect’ that can be experienced on radios using alternative battery chemistries.
   
CSAHT CSAHT – Single-unit rapid charger for the HT series hand portable. This intelligent rapid mains charger ensures that the battery only receives the correct amount of charge. Charge status is indicated via a multi-coloured LED so you will know whether the battery is fully charged before use. Charger operates between 110-230V. Due to the high capacity of the HT Li-Ion battery pack, charge time is around 2.5 hours. The charger can be either desk or wall mounted.
CSBHT CSBHT - Six-unit multi rapid charger for the HT series hand portable radio. This six-unit intelligent rapid mains charger ensures that the batteries only receive the correct amount of charge. Charge status is indicated on each pod via a multi-coloured LED so you will know whether the battery is fully charged before use. Charger operates between 110-230V. Due to the high capacity of the HT Li-Ion battery pack, charge time is around 2.5 hours.
CCA230(HT) CCA230 - Single-unit regular charger for the HT series hand portable radio. Single-unit 230V mains regular charger for the HT series hand portable radio. Due to the high capacity of the HT Li-Ion battery pack, charge time is around 3.5 hours. The charger can be either desk or wall mounted.
CCA110 CCA110 – Single–unit regular charger for the HT series hand portable radio. Single unit 110V mains regular charger for the HT series hand portable radio. Due to the high capacity of the HT Li–Ion battery pack, charge time is around 2-6 hours. The charger can be either desk or wall mounted.
CCA12(HT) CCA12 - 12V DC regular charger for the HT series hand portable. A charger pod and cigar lighter lead for regular charging of the HT series batteries from a 12V DC source. Due to the high capacity of the HT Li-Ion battery pack, charge time is around 3.5 hours. The charger can be either desk or wall mounted.
CWCHT-12 CWCHT-12 - Cigar lighter lead for the HT series hand portable. A spare cigar lighter lead for the CCA trickle charger pod.
CWC750 CWC750 - Mains adapter for the HT series CCA regular charger pod. A spare mains adapter available in either 230V Euro 2 pin or UK 3 pin and 110V 2 pin options. Specify when ordering.
CMP850 CMP950 - A submersible, very rugged, heavy duty lapel speaker microphone for the HT ATEX series hand portable radio. The CMP950 is attached with a revolving clip and allows the radio user to carry the radio on their belt and have the facility to both make and receive calls without removing their radio. This keeps the radio safe and ensures that calls are not missed, especially in noisy environments. The CMP950 has a socket (3.5mm mono) to allow an optional earpiece (EHP9) for discreet reception of calls. Note: when the earpiece is attached the speaker microphone is no longer submersible, until the earpiece is removed and the waterproof cover is replaced and tightened.
EA12 850 EA12/850 – ‘D’ shaped earpiece and tie clip microphone for the HT U.S.T.C series hand portable radio. A ‘D’ shaped, soft rubber-feel earpiece which fits over your ear. This is connected to a combined tie clip microphone and press to talk button via a curly cable. A rotating strain relief clip can attach to your collar to prevent the earpiece being dislodged if the cable were pulled. The EA12/850 allows the radio user to carry the radio on their belt and have the facility to both make and receive calls without removing their radio. This keeps the radio safe and ensures that calls are not missed, especially in noisy environments. This accessory is designed for light to medium duty applications, so to ensure maximum life span it should be personally allocated to users.
EA15 750 EA15/850 - Acoustic tube earpiece and tie clip microphone for the HT U.S.T.C series hand portable radio. A clear acoustic tube earpiece which fits in your ear using the small or large soft pink ear plugs supplied. This is connected to a combined tie clip microphone and press to talk button (PTT). The EA15/850 allows the radio user to carry the radio on their belt and have the facility to both make and receive calls without removing their radio. This keeps the radio safe and ensures that calls are not missed, especially in noisy environments. This accessory is particularly suited to covert, security applications. This accessory is designed for light to medium duty applications, so to ensure maximum life span it should be personally allocated to users.
EA19 850 EA19/850 - 'D' shaped earpiece with boom microphone for the HT U.S.T.C series hand portable radio. A ‘D’ shaped, soft rubber-feel earpiece which fits over your ear. The earpiece is combined with a lightweight short profile boom microphone. There is an in-line press to talk button (PTT) with clip. The EA19/850 allows the radio user to carry the radio on their belt and have the facility to both make and receive calls without removing their radio. This keeps the radio safe and ensures that calls are not missed, especially in noisy environments. This accessory is designed for light to medium duty applications, so to ensure maximum life span it should be personally allocated to users.
EPT40 850 EPT40/850 - Bone conductive earpiece microphone for the HT U.S.T.C series hand portable radio. The combined microphone/earpiece allows discreet communication with no visible microphone. The earpiece connects via a quality in line connector to a large rugged waterproof press to talk (PTT) button that can clip on to a belt or other suitable position using the rugged revolving clip. The press to talk switch is easy to use, has a positive feel and can be used by a gloved hand or under clothing. As with all bone conductive accessories, we do not recommend using voice operated transmit (VOX).
 CXR5 850 CXR5/850 - Bone conductive skull microphone with in-line PTT for the HT U.S.T.C series hand portable radio. A high quality rugged bone conductive skull cap. The fully adjustable CXR5 fits on your head similar to a cap. The metal frame supports the bone conductor microphone which fits on adjustable straps and sits on the top of your head. The adjustable twin earpieces clip into position each side. The robust cable exits the skull cap from the rear and attaches via a quality in-line connector to a large rugged waterproof press to talk switch that can clip on to a belt or other suitable position using the rugged revolving clip. The press to talk switch is easy to use, has a positive feel and can be used by a gloved hand or under clothing. As with all bone conductive accessories, we do not recommend using voice operated transmit (VOX).
CXR16 850 CXR16/850 - 'D' Shaped earpiece, throat microphone with large in-line PTT for the HT U.S.T.C series hand portable radio. A high quality throat microphone with a comfortable soft-feel adjustable neck band. A rugged ‘D’ shaped earpiece accompanies the throat microphone and connects via a quality in-line connector to a large rugged waterproof press to talk switch that can clip on to a belt or other suitable position using the rugged revolving clip. The large sized press to talk (PTT) switch is easy to use, has a positive feel and can be used by a gloved hand or under clothing.
CHP850HS CHP850HS - Single earpiece ear defender (hard hat use only) with VOX for the HT U.S.T.C series hand portable radio. A heavy duty single ear-cup earpiece with high quality noise-cancelling boom microphone and designed to connect to any safety hard hat via the supplied universal adapter. The headset provides both voice operated transmit (VOX) and a large easy-to-use press to talk button with spring-loaded clip, allowing the radio to be operated using a gloved hand or under clothing. We do stock a small range of common hard hat adapters which can be supplied in place of the universal adapter (please specify at time of ordering).
CHP850HD CHP850HD CHP950HD – Double earpiece heavy duty ear defender with noise cancelling microphone VOX & in-line PTT. For hard hat use only, several helmet adaptors are available including a universal clip
CHP850D CHP850D - Double ear-cup ear defender with comfort headband and VOX for the HT U.S.T.C series hand portable radio. A heavy duty ear defender headset with high quality noise-cancelling boom microphone and comfort headband. The headset provides both voice-activated transmit and a large easy-to-use press to talk (PTT) button with spring-loaded clip, allowing the radio to be operated using a gloved hand or under clothing.
EHP950 EHP950 – ‘D’ shaped covert style earpiece for the HT series hand portable radio. A ‘D’ shaped soft rubber-feel earpiece which fits over your ear. The earpiece is designed to connect into the HT series radio, via the locking accessory connector. (Note: before this accessory can be used, it is necessary for the dealer to enable the listen-only feature in the radio’s programming software). This accessory is designed for light to medium duty applications, so to ensure maximum life span it should be personally allocated to users.
CLC950 CLC950 – Heavy duty leather case and strap with belt loop for the HT series and ATEX radios. A heavy duty leather carry case with belt loop and strap. This will give the radio cosmetic and maximum impact protection if dropped or knocked.
   
  CAT40 – HT Series VHF marine standard antenna

Tehnical Specification

 

General

 

Frequency Range 156 - 163.275MHz (HT844)
Channels International (INT), USA, Canadian (CAN) & Private Channels
Channel Spacing 25 kHz
Communication Method Simplex / Semi duplex
Antenna Impedance 50 ohm
Antenna High Efficiency Helical
Battery Type 1800 mAh Li-Ion battery pack
Power Supply Voltage 7.4V DC
Microphone Internal condenser microphone
Operating Temperature -20° to +55°
Weight 277g with battery and aerial
Size (mm) 59.5(W) x 130(H) x 37(D)
W = 59.5 (62 including protrusions)
H = 130 (145 inc knobs)
D = 37mm (41 including battery protrusions)

 

Transmitter
Power Output Selectable. HIGH = 4W, LOW = 1W
Modulation 16K0F3E
Oscillator Method PLL
Frequency Stability < ± 0.00025% (±2.5PPM)
Maximum Deviation ± 5 kHz
Audio Distortion < 5% (1kHz 60%)
Spurious Emission -68 [dBc]
Hum & Noise -40 [dB]

 

Receiver
Receiver Type Double Super Heterodyne type
Sensitivity < -0.25uV (12dB SINAD)
Frequency Stability  < ± 0.00025% ( ±2.5PPM)
Spurious Rejection -60 dB
Adjacent Channel Selectivity -70 dB (Wide)
Distortion < 3% Typical @ 500mW
Hum & Noise -40 dB
Audio Output 660mW
Speaker Size 38 mm
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