Entel HT644 VHF Marine Two Way Radio

Internal ref: ENHT644UK // Manufacturer part #: HT644

Professional marine handheld radio that exceeds MIL-STD 810C/D/E/F standards

£156.99 - £188.39 Incl. VAT
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Delivery date with Express Shipping: 28/05/2024 If order placed before 12PM
2 years of manufacturer warranty Subject to manufacturer conditions
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Key features

  • Operates on VHF marine band
  • 58 marine channels, 10 weather channels and 36 programmable private channels
  • IP68 - submersible to 5m for 1 hour
  • MIL-STD 810C/D/E/F certified
  • LCD display
  • 7-button keypad

In the box

HT644 radio
7.4v, 2000mAh rechargeable Lithium-Ion battery pack
Spring loaded belt clip
Intelligent charger pod
Mains adapter
12v charger lead
High efficiency antenna

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The Entel HT644 has been designed to meet the challenges of life at sea, and comes pre-programmed to 58 marine channels, 10 weather channels with 36 programmable private channels. The 58 marine channels can be switched to comply with USA, International and Canadian channels.Entel HT644

Manufactured to the highest standards, this robust radio has IP68 rating, which means that is completely submersible to 5m for up to 1 hour, and exceeds MIL-STD 810C/D/E/F standards for resistance to shock, vibration, dust and moisture. Advanced noise reduction technology ensures excellent audio quality, and with VOX, it can be used hands free with an ear piece, which can be connected to the radio via its especially designed robust accessory socket. This waterproof socket can withstand any amount of rough use and features a securing bolt to protect the connector.

This radio comes with advanced Li-Ion battery technology. The intelligent batteries count the number of completed charges, alert users to the imminent end of battery life, and the elimination of the memory effect means that you don't have to worry about running the batteries completely dry before recharging.

The large LCD display shows information such as channel names, battery charge count, signal strength, etc., while a 7-button keypad provides direct access to functions such as channel scan, weather channels, etc and can be used easily with or without gloves.


  • IP68 - submersible to 5m for 60 minutes
  • LCD display
  • Pre-programmed to 58 marine channels, 10 weather channels
  • 36 programmable private channels
  • Channel 16 shortcut button
  • Scan button
  • Monitor button
  • MEM button
  • 1800mAH Lithium-Ion battery
  • Frequency range:156 - 163.275MHz
  • Channels: INT, USA, CAN
  • Channel Spacing: 25 kHz
  • Communication Method: Simplex/semi duplex
  • Antenna Impedance: 50 ohm
  • Antenna: Helical
  • Battery Type: 2000 mAh Li-Ion battery pack
  • Power Supply Voltage: 7.4V DC
  • Microphone: Internal condenser microphone
  • Power Output: HIGH – 5W, LOW – 1W
  • Modulation: 16K0F3E
  • Oscillator Method: PLL
  • Frequency Stability: < ±0.0002% (±2PPM)
  • Maximum Deviation: ±5 kHz
  • Audio Distortion: < 5% (1 kHz 60%)
  • Spurious Emission: -68 [dBc]
  • Hum & Noise: -40 [dB]
  • Receiver Type: Double Super Heterodyne type
  • Sensitivity: <-0.25uV (12dB SINAD)
  • Frequency Stability: ±0.0002%(±2PPM)
  • Spurious Rejection: -60 dB
  • Adjacent Channel Selectivity: -70 dB
  • Distortion: < 3% Typical
  • Hum & Noise: -40 dB
  • Audio Output: 1W
  • Speaker Size: 38m
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More Information
Manufacturer part #HT644
Warranty2 years
FrequencyMarine VHF
UseFor intensive use
ATEX certifiedWithout ATEX certification
IP RatingIP68 rating
Military standardConfirmed to military standard
Channels - Sub-channels - Codes58 marine channels, 10 weather channels, 36 programmable channels
RangeUp to 25km
VOX/iVOX hands freeWithout earpiece
Battery1800mAh Li-Ion
SOS buttonWithout SOS button
Vibrate functionWithout vibrate function
Voice encryption functionWithout voice encryption
Scan functionWith scan function
Size59.5 x 130 x 37mm
Connector accessoryEntel

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