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Integrated Radio Systems

Entel HT446
Fully Submersible PMR446 License Free Radio


Entel HT446Product Description

Unlike the majority of PMR446 products currently on the market, HT446 is no throw away toy. Entel recognises that today’s business users demand the highest levels of performance and dependability to ensure the smooth, efficient running of their workplace. HT446 draws upon the pedigree of the award winning HT Series design, offering advanced features combined with commercial grade construction. Such a full and complete specification is something that Entel’s closest competition can only dream of. HT446 can be set up and configured to access all or as many of the following features as you choose. Enabled features are accessed by simple menu driven selection, including all CTCSS/DCS tones, built in voice scrambler, voice activation, scanning, vibrate and 20 individual call alert tones. With the latest lithium-Ion battery technology there will be no more dreaded memory effects associated with poor charging routines, just a full 24 hour battery life, each and every time you collect your radio from the charger. If that’s not enough HT446 is completely submersible too! There should be no other choice, the HT446 radio – versatile, built to last and at a price that belies its specification!

Right – HT446 with high performance ¼ wave aerial (supplied as standard). For systems where range is not critical the HT446 can be supplied with a short (just over 1/3 the length) stubby aerial, please ask for details.

Click here to buy the Entel HT446 on our E-Commerce website.


  • Fully Submersible & Tough
  • Large easy to read LCD display
  • Vibrate Mode
  • Voice Encryption
  • 20 Call tones + advanced channel scan
  • VOX (Voice Operated Transmit)


Excellent Range
Delivers a full five hundred mW RF power combined with its high performance receiver and aerial the HT446 can provide up-to 5Km range.

Entel prides themselves on engineering transceivers to the highest specification necessary to protect against the likely hazards encountered in any field of operation. This is why our HT446 conforms to European Standard IP67 – withstanding total immersion in water to a depth of 1 metre for 30 minutes - giving you total protection and peace of mind.

The HT446 is unique in offering such a full specification. It is built without compromise to deliver superb, consistent performance in the most hostile environments.

Commercial Grade Construction
Meeting MIL STD 810C/D/E rating for tough, enduring performance, the HT446 conforms to stringent standards, enabling it to withstand the every day rigours of shock, vibration and the corrosive action of dust and moisture, ensuring many years of trouble free use.

Large rubber armoured volume control and side grips make HT446 easy to grip with wet or gloved hands.

Feature Rich – Simple To Use!
With all its technological advances the HT446 remains very simple to use, with its features accessed through either a simple button press or its intuitive menu that is indicated on the radios large LCD display.

Superior Audio Quality
Loud and crisp audio no matter what environment you are in.

Battery Life Indicator
Continually monitors battery state for your safety and convenience.

Built In Voice Scrambler
Enabled at the press of a button, this feature ensures privacy between you and other HT446 radios used in your system. Your radio calls will be loud, crisp and clear whilst potential eavesdroppers monitoring the same channel will hear unintelligible garble.

Lithium-Ion Battery Technology
This very latest battery technology gives you three big advantages: 1. Huge twenty four hour duty cycle with supplied CNB640E battery pack. 2. Not prone to the dreaded memory effect that Nicad and Ni-MH battery packs suffer from, therefore no more need to fully discharge your battery pack before charging! 3. Stores a charge up to three times longer than a Nicad.

Vibrate Mode
On receiving a valid incoming call the HT446 will vibrate in the same was as a mobile phone.

Hands free operation when used with a VOX accessory.

The HT446 has both channel and tone scan. Channel scan searches through memorized channels to ensure no lost calls. Tone scan is used to identify the tone being used on an existing system enabling the HT446 can easily communicate with existing radios.

20 Call Tones
The HT446 can send any one of 20 individual call tones alerting receiving radios to your imminent voice call.

Mode A & B
The HT446 can be configured for access to all (mode A), limited or none (mode B) of its additional features. This ensures the radio can be “locked” to your companies settings ensuring accidental reprogramming of channels etc is a thing of the past.

One Year Warranty
The HT446 transceiver is supported by a one year manufacturer’s warranty.

Key Benefits:

The HT446 offers:

  • No call Charges
  • No License fees
  • Vibrate Mode
  • Voice Encryption
  • Fully Submersible
  • 24 hour battery endurance on a single charge
  • Instant communication at the touch of a button
  • Lock down mode of operation to prevent accidental reprogramming

Typical Applications (include but are not limited to):

Sport / Event Management / Swimming Pools
Suitable for smaller events including Motorsport a PMR446 radio is a cost effective and instant way to communicate. Submersible radios are ideally suited to any humid environment including swimming pools where other radios will corrode with time. The HT446 will even withstand being taken for a swim!

This heavy-duty radio is suited to smaller sites that require a robust radio with a high volume output. A submersible radio provides unparalleled protection against UK weather, mud and dust.

The heavy duty radio makes it easier for manufacturing workers and management to communicate often significantly reducing “down time” and improving efficiency.

Ideal for heavy duty, noisy applications such as automated packing sheds as well as in the field etc.

Local Government
Ideal for short range communications for road crews or in buildings etc. Robust and submersible units easily cope with UK weather, mud and dust.

Garden Centres / Nurseries
Improve your customer services at the press of a button. Robust and submersible units easily cope with UK weather, mud, dust and even Charlie’s water features!