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This DMR446 license free portable is the latest addition to our DTEx DMR Digital Series of Intrinsically Safe radios. 

The industrial grade DTEx delivers exceptionally loud audio coupled with outstanding audio clarity and the ergonomic controls are specifically designed for gloved hand use.

With a market-leading IP68 rating (2-meters 4-hours) the fully submersible, MIL-STD-810 DTEx can be depended on to withstand the most extreme and hostile of environments.

The ultra compact, fully submersible DX446E is the non-Intrinsically Safe license free DMR radio alternative.


  • 16 Channels, 1 Zone
  • IP68 Submersible (2m, 4 hours) 
  • MILSTD construction 810C/D/E/F/G
  • High capacity Li-Ion battery
  • 3 watts loudest & best clarity audio - in class 
  • 2 slot simplex
  • Multiple receive groups 
  • Talker alias (TX only)
  • Group calling
  • Individual calling
  • Programmable buttons 
  • Gold plated accessory connector 
  • Locking accessory connector 
  • Accessory audio tailoring optimises audio for each accessory 
  • Drag and drop end user programmer, no need to visit site


  • Personal attack button
  • Channel voice annunciation
  • Advanced voice annunciation (battery capacity etc.)
  • VOX

    If you require a feature not listed above, please let us know.

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    Environmental protection - IP68 (2 Meters for 4 hours) Entel's radios are approved to IP68 (2 Meters for 4 hours) rated construction, which means that they are dust protected and fully Submersible (even with the accessory cover removed).

    MILSTD 810C/D/E/F/G Meeting MIL-STD 810C/D/E/F/G and providing commercial grade construction for tough, enduring performance. Entel's radios conform to stringent standards, enabling them to withstand the everyday rigours of shock, vibration and the corrosive effects of dust and moisture, ensuring many years of trouble free use.

    Outstanding Audio Entel’s radios offer best-in-class performance with natural-sounding digital audio. Easy to read large character display

    Programmable buttons - To ensure your Entel radio meets your exact need its buttons can be programmed with the exact features you need.

    Gold plated accessory connector - The radios multi-pin interface and Micro-USB socket are both submersible and gold-plated to minimise any risk of damage and protect against corrosion.

    Locking accessory connector - All Entel accessories incorporate a robust locking connector and the radios accessory 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.

    Accessory audio tailoring - Entel's radios identify the attached accessory and automatically adjust its settings ensuring the most natural and readable audio possible is delivered even with bone conductive accessories and breathing apparatus com kits.

    Scan - Scan makes the radio automatically change channels for you searching for activity, when received the radio will stop on the channel until the transmission has ended. You can respond or let the radio resume scanning.

    Voice annunciation – This programmable feature announces either the channel position selected or, in the case of marine models, the marine channel number (alias) – this gives further assurance to the user that they’ve selected the correct channel allowing them to focus on the task in hand.


    Frequency Range PMR/DMR446
    Channels 16
    Number of Zones 1
    Vocoder AMBE+2™
    Battery CNB950E 1800mAh Lithium-Ion
    Overall Dimensions (HxWxD) 138mm x 60mm x 38mm
    Frequency Stability ± 1.5ppm
    Operating Voltage 7.4v
    Programmable Buttons 3
    Analogue Channel Spacing 12.5/20/25KHz
    Digital Channel Spacing 12.5KHz
    Battery Endurance (5/5/90 duty cycle @ 0.5W) Analogue 14.5 hours
    Digital 18.5 hours


    Output Power 0.5 Watt
    Modulation Limiting ±2.5kHz @ 12.5kHz
    ±4.0kHz @ 20kHz
    ±5.0kHz @ 25kHz
    Conducted / Radiated Spurious Emissions Better than -36dBm
    Adjacent Channel Power Better than 60dB
    Audio Distortion (typical) 3%


    Sensitivity (typical) Analogue
    -121dBm (0.2uV) for 12dB SINAD
    -121dBm (0.2uV) for 5% BER
    Intermodulation response rejection (ETSI) > 70dB
    Adjacent Channel Selectivity (ETSI) > 70dB(12.5KHz) 60dB(25KHz)
    Spurious Response Rejection (ETSI) > 70dB
    Audio Output Power 1-Watts
    Audio Distortion (typical) 3%
    Conducted Spurious Emission (ETSI) > - 57dBm


    Ex Protection ATEX II 2G Ex ib IIC T4 Gb
    Operating Temperature -20°C to +55°C
    Storage Temperature -40°C to +85°C
    Thermal Shock, Humidity, Shock & Vibration, Packing Test, Drop Test MIL-STD-810 C/D/E/F/G
    Dust & Liquid Ingress IP68 (2m 4h Submersible)

    Approvals, visit: www.entel.co.uk/red

    As standard the DT Series portable is supplied with:

    • Li-Ion battery pack
    • Rapid Charger
    • Belt Clip
    • High Efficiency Antenna
    • Quick Start User Guide