Entel HT644

VHF Marine Portable Radio

All USA, International, and Canadian marine channels

Entel HT644 not just an essential marine communications tool, ready to go at the touch of a button. If and when you find yourself on the wrong side of the cruel sea it can be a life-saver. So don’t compromise by relying on inferior products, insist on the radio that’s way out in front of its competition.

Built to a stringent standard, the robust Entel HT644 is designed to shrug off wind, rain and salt water to give you years of trouble-free use. You can depend on it.


  • 2000mAh Lithium battery technology
  • Fully submersible IP68
  • Robust MIL-STD construction
  • Simple and intuitive operation
  • High visibility back-lit LCD
  • Exceptionally loud audio
  • Robust multi pin accessory connector
  • All USA, International, and Canadian marine channels
  • 36 Private channels
  • Lightweight polycarbonate construction, just 277g
  • Extensive range of optional accessories
Entel HT644 VHF Marine Portable Radio 1

Entel HT644 VHF Marine Portable Radio 2    Entel HT644 VHF Marine Portable Radio 3    Entel HT644 VHF Marine Portable Radio 4

Key Features


Environmental protection to IP68 (2 Meters for 4 hours)

The practical HT644 Series 2.0 GMDSS portable enjoys an IP68 (2 Meters for 4 hours) rated construction, which means that it is dust protected and fully Submersible.


Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel’s HT644 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.


  • All USA, International, and Canadian marine channels
  • 36 Private channels

2000mAh Li-Ion battery

The HT644 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.

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.



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 HT644 portable can operate totally hands free. All you need to do is talk and the HT644 portable will automatically transmit for you.


The HT644 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.

Scope of Supply

As standard the HT Series portable is supplied with:

  1. CNB750E – 7.4v, 2000mAh rechargeable Lithium-Ion battery pack
  2. Drop-in charger
  3. CBH750 – Spring loaded belt clip
  4. High efficiency antenna
  5. User manual


HT Series Marine Brochure V2.9  Entel HT644 VHF Marine Portable Radio 3  3 MB

Entel HT644 VHF MARINE Walkie Talkie Brochure  Entel HT644 VHF Marine Portable Radio 3  760 KB