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Entel HT644 VHF Marine Two Way Radio

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

Manufacturer Ref.: HT644 Product Ref.: ENHT644UK
Entel HT644 VHF Marine Two Way Radio

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

  • Free standard shipping on this item
  • 2 years standard warranty
£194.99 ex. VAT
£233.99 incl. VAT

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Product information

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
Warranty 2 years
Frequency Marine VHF
Use For intensive use
Comes with case and accessories Without case
ATEX certified Without ATEX certification
Robustness Resistant
Water resistant Water resistant
IP Rating IP68 rating
Military standard Confirmed to military standard
Channels - Sub-channels - Codes 58 marine channels, 10 weather channels, 36 programmable channels
Range Up to 25km
Display With display
VOX/iVOX hands free Without earpiece
Battery 1800mAh Li-Ion
SOS button Without SOS button
Vibrate function Without vibrate function
Voice encryption function Without voice encryption
Scan function With scan function
Room monitoring Without room monitoring
Roger Beep Without roger beep
Flashlight Without flashlight
Size 59.5 x 130 x 37mm
Connector accessory Entel
Sold as No
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
Entel HT644 - User Manual (458.03 KB)

Entel HT644 - Data Sheet (665.88 KB)

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Entel In-Ear Earpiece with Mic for HT Series
£26.99 ex. VAT
Ref: ENTEA15750
Entel D-Shape Earpiece with Mic for HT Series
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Entel D-Shape Earpiece for HT Series
£26.99 ex. VAT
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