HT544
The first time you handle Entel’s HT544 Series 2.0 portable you will be impressed by its superior build quality. The HT544 has been designed specifically for those requiring a no compromise marine portable.
From the rugged ergonomic design that fits comfortably in your hand, to the exceptionally loud audio, the HT544 Series 2 portable easily outclasses the competition.
The HT544 portable is IECEx (II 2 G Ex ib IIA T4) Intrinsically Safe certified and approved to the essential IEC 60945 marine environmental standard and fully Submersible to IP68 (2 meters depth for 4 hours).
Entel’s HT544 Series 2 portable will exceed the expectations of even the most experienced radio user.

General
Environmental protection to IP68 (2 Meters for 4 hours)
The practical HT544 Series 2.0 portable enjoys an IP68 (2 Meters for 4 hours) rated construction, which means that they are dust protected and fully Submersible.
MILSTD 810C/D/E/F
Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel's HT544 Series 2.0 portable conforms to stringent standards, enabling it to withstand the everyday rigours of shock, vibration and the corrosive effects of dust and moisture, ensuring many years of trouble free use.
Intrinsically Safe
The HT544 Series 2 portable is IECEx (II 2 G Ex ib IIA T4) Intrinsically Safe certified.
1800mAh Li-Ion battery
The HT544 Series 2.0 portable is supplied with the latest intelligent Lithium-Ion battery technology as standard. One key advantage of Lithium-Ion battery technology is the way it eliminates ‘memory effect’ meaning there is no need to fully discharge your battery before recharging. Therefore you are assured a full charge each and every time you take your Entel battery from its charger.
Flash upgradeable to add future features
Entel adds and improves features on its HT544 radio by way of software updates. Using Flash Upgrade technology your Entel HT544 radios can be upgraded by your Dealer at any time.
Robust accessory socket
The socket has been specifically designed so that when an accessory is secured to the portable, the connection can withstand any amount of punishment; from dropping to careless misuse. Furthermore, the securing bolt incorporates a shearing point to protect the connector.
Channels
The HT544 portable provides all INT, USA & CAN Marine channels.
Convenience
Keylock
To avoid accidental operation your radios keys & controls can be locked by the user or, if set, automatically by the radio.
VOX hands free (with audio accessory)
When using an Entel VOX enabled audio accessory, your HT544 portable can operate totally hands free. All you need to do is talk and the HT544 portable will automatically transmit for you.
Scan
The HT544 Series portable has the facility to scan for an active channel. When the channel is found, the radio will automatically select the channel for you.
General
Frequency Range | 156 - 163.275MHz |
Channels | All INT, USA & CAN Marine Channels |
Channel Spacing | 25 kHz |
Communication Method | Simplex / semi duplex |
Antenna Impedance | 50 ohm |
Antenna | Whip / stubby |
Battery Type | 1800 mAh Li-Ion battery pack |
Power Supply Voltage | 7.4V DC |
Current Drain (nominal) | 40mA |
Duty Cycle (5/5/90) | 12.5 hours |
Microphone | Internal condenser microphone |
Operating Temperature | -20° to +55°C |
Construction | MIL-STD 810C/D/E/F |
IP Rating | IP68 (2 meters depth for 4 hours) |
Size (mm) | 59.5(W) x 130(H) x 37(D) |
Weight | 277g with battery and aerial |
Transmitter
Power Output | High – 4W / Low - 1W |
Modulation | 8K0G3E/16K0G3E |
Oscillator Method | PLL |
Frequency Stability | 2.5PPM |
Maximum Deviation | ±5 kHz |
Audio Distortion | < 5% (1 kHz 60%) |
Spurious Emission | -68 [dBc] |
Hum & Noise | -40 [dB] |
Receiver
Receiver Type | Double Super Heterodyne type |
Sensitivity | -0.25uV (12dB SINAD) |
Frequency Stability | 2.5PPM |
Spurious Rejection | -60 dB |
Adjacent Channel Selectivity | -60 dB (Narrow) , -70 dB (Wide) |
Distortion | < 5% (1 kHz 60%) |
Hum & Noise | -40 dB |
Audio Output | 1W |
As standard the HT Series portable is supplied with:
- CNB550E - 7.4v, 1800mAh rechargeable Lithium-Ion battery pack
- Drop-in charger
- CBH950 - Spring loaded belt clip
- High efficiency antenna (can be exchanged for stubby antenna at point of order)
- User manual
Featured Products
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CNB550EV2
1800mAh rechargeable Lithium-Ion battery pack
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CSAHT
Single pod rapid charger, 110-240v, specify 2-pin or 3-pin plug
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CSBHT
Six pod intelligent rapid charger, 110-240V. Specify 2-pin or 3-pin plug
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CWCHT-12
Cigar lighter lead 12V
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CWC
Mains adaptor. Specify 2-pin or 3-pin plug
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EA12/950
'D' shaped earpiece with tie clip microphone / PTT
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EA19/950
'D' shaped earpiece with boom microphone & in-line PTT
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CXR5/950
Bone conductive skull microphone with large in-line PTT
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CXR16/950
'D' shaped earpiece, throat microphone with large in-line PTT
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CHP950HS
Single earpiece ear defender with large PTT (hard hat use only)
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CHP950D
Double ear-cup ear defender with large PTT & comfort headband
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CHP950HD
Double ear-cup ear defender with large PTT (hard hat use only)
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EHP950
'D' shaped covert style earpiece
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CBH950
Spare spring loaded belt clip
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CXW640
BNC Antenna adapter
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CAT20
VHF 136-174MHz antenna
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CAT20S/165
VHF 165MHz stubby antenna
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CAT20S/155
VHF 155MHz stubby antenna
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CLC953
Heavy duty leather case and strap with belt loop for display radios
