Entel DT844FF MED Fire Fighter Intrinsically Safe DMR Radio (VHF ATEX IIB)

The Entel DT844FF is an MED-approved intrinsically safe DMR portable from the DTEx Fire Fighter series, designed for onboard fire teams and finished in high-visibility fire red.

It meets MED/5.20, the standard implementation regulation for fire-fighter two-way radios, alongside the European ATEX directive. Certification is ATEX II 2G Ex ib IIB T4 Gb. Gas group IIB covers ethylene-type atmospheres, sitting between IIA and IIC.

This model

• Frequency range: VHF marine band
• Transmit power: 1 W
• Channels: 99, 1 zone, with channel number and frequency both shown on screen
• Display: high-contrast white-on-black OLED, readable in low light
• Channel spacing: 6.25, 12.5 and 25 kHz
• Sensitivity: -116 dBm (0.35 µV) analogue at 12 dB SINAD, and digital at 5% BER
• Battery endurance (5/5/90): 16.5 hours analogue, 19.5 hours digital

Built for fire teams at sea

• Salt water anti-corrosion chassis coating — for sustained exposure to a marine atmosphere.
• IP68 to 2 metres for 4 hours — the highest submersibility rating of any manufacturer.
• MIL-STD-810 C/D/E/F — thermal shock, humidity, shock, vibration and drop tested.
• Bone conductive audio — the CXR5 skull mic and CXR16 throat mic strip out ambient noise and have become the standard fit for onboard fire teams. Draeger BA kits are supported.
• Ultra-tactile buttons and high-torque controls — operable in full gloves.
• Validated accessory connector — gold-plated, submersible and locking, with automatic checking so a non-compliant accessory cannot invalidate the IS approval.
• Memory scan and programmable switch-on logo

Onboard reprogramming

A free drag-and-drop PC app lets non-technical crew apply a new programming file emailed by the dealer, without the radio leaving the vessel.

Shared specifications

• Dimensions: 138 x 60 x 38 mm
• Weight: 435 g
• Vocoder: AMBE+2
• Frequency stability: ±0.5 ppm
• Operating voltage: 7.4 V
• Rated audio power: 1 W
• Operating temperature: -20°C to +40°C (storage -40°C to +85°C)
• Battery: CNB950EV2 1800 mAh Li-ion
• Ex protection: ATEX II 2G Ex ib IIB T4 Gb
• Ingress protection: IP68, submersible to 2 m for 4 hours

Supplied with

Li-ion battery pack, drop-in charger, spring-loaded belt clip, high-efficiency antenna and quick-start user guide.

Optional accessories include the CXR5/DT9 bone conductive skull mic, CXR16/DT9 throat mic, CHPD/DT9 and CHPHS/DT9 ear defender headsets, CMP/DT9S and CMP/DT9E speaker microphones, CSBHT six-pod rapid charger and CLCDT2 / CLCDT5 leather carry cases.

Supplied, programmed and supported by Yesway Communications, an authorised Entel dealer.