Entel DT885FF MED ATEX IIB T4 DTEx Fire Fighter UHF marine radio

The MED-approved DTEx Fire Fighter Series is designed to meet the highest standards in safety and performance, compliant with the latest MED/5.20 regulation and European ATEX directive. Built to withstand the most demanding environments, this portable radio delivers loud, crystal-clear audio, even in challenging conditions. The ultra-tactile buttons and high-torque controls make it easy to operate, even while wearing gloves. The high-contrast OLED display ensures readability in low-light settings, adding to its ease of use in emergencies.

The DTEx Fire Fighter Series sets a new standard for firefighter radios with its market-leading IP68 submersible rating, allowing it to be submerged in 2 meters of water for up to 4 hours. This makes it reliable in extreme and hostile environments, ensuring it can handle the rigors of daily use.

Key Features

This series operates in both analogue and DMR modes, offering 99 channels and 1 zone, with the display showing both channel number and frequency. Its rugged construction is compliant with MILSTD 810C/D/E/F, and it features an anti-corrosion chassis coating to withstand saltwater exposure. The programmable buttons, gold-plated accessory connector, and locking accessory connector further enhance its durability and usability. The high-contrast OLED display provides superior readability, and the accessory audio tailoring feature optimizes sound quality for each connected accessory.

The DTEx Fire Fighter Series can be programmed with both analogue and digital channels, clearly indicated on the display, along with the frequency. In cases where a semi-duplex channel is programmed, the display will show "Repeater" instead of the frequency. Digital mode offers several advantages over analogue, including better audio quality, extended range, and longer battery life.

Durability

The DT885FF model offers the highest submersibility rating available, withstanding total immersion in 2 meters of water for 4 hours. This protection is critical in extremely wet environments, helping to guard against corrosion. Its robust accessory socket ensures that accessories stay securely connected, even under rough handling, and the gold-plated, submersible sockets minimize damage and prevent corrosion.

Performance and Ease of Use

The high-contrast white-on-black OLED display makes reading information in low-light conditions easy, and the latest Li-ion battery technology ensures long talk times without the "memory effect." This means users can recharge the battery without fully discharging it, ensuring a full charge every time. With loud, crisp audio, the DT885FF excels in delivering clear communication even in noisy environments. Accessories like the CXR bone conductive microphones enhance sound quality by eliminating ambient noise, aided by Entel’s Smart Speech Tailoring technology, which optimizes audio based on the accessory connected.

Reprogramming the radio is simple, thanks to an onboard app that allows drag-and-drop updates directly from an email. This feature makes it easy for non-technical personnel to keep the radios up to date without needing specialized equipment or skills.

Additional Features

The radio includes a keylock feature to prevent accidental operation, and a programmable channel monitor button that allows users to temporarily disable channel protection and monitor all signals on the channel. A memory scan function enables users to create or change their channel scan lists, ensuring flexibility during operations.

For safety, the DT885FF comes with a personal attack alarm, which emits a loud siren as a deterrent and calls for assistance when activated. The ATEX IIB T4 approval ensures the radio meets the strictest ATEX ratings, making it safe for use in hazardous environments, as specified by EU directive 2014/34/EU.

Technical Specifications

• Frequency Range: UHF 450–470 MHz
• Channels: Marine UHF
• Channel Spacing: 6.25KHz, 12.5KHz, 25KHz
• Battery: CNB950EV2 1800mAh Lithium-ion
• Dimensions: 138mm x 60mm x 38mm
• Frequency Stability: ±0.5 ppm
• Operating Voltage: 7.4V
• Programmable Buttons: 3
• Battery Endurance (Analog Mode): 14 hours
• Battery Endurance (DMR Mode): 17 hours
• Transmitter Power Output: 2 Watts (ERP)
• Modulation Limiting: ±5.0KHz / ±2.5KHz
• FM Hum and Noise: >-40dB / >-45dB
• Unwanted Emissions: >0.25µW
• Adjacent Channel Power: >60dBc / >70dBc
• Audio Response (FM): 300Hz to 3KHz -6dB/Octave
• Audio Distortion: <5%
• 4FSK Digital Modulation: 7K60FXE / 7K60FXD

Receiver Specifications

• Digital Sensitivity: -116dBm (0.35µV) for 5% BER
• Analogue Sensitivity: -116dBm (0.35µV) for 12dB SINAD
• Intermodulation Response: >68dB
• Adjacent Channel Selectivity: >60dB / >70dB
• Spurious Rejection: >70dB
• Rated Audio Power: 1 Watt
• Audio Distortion: <5%
• Hum and Noise: >-40dB / >-45dB
• Audio Response: 300Hz to 3KHz -6dB/Octave

Environmental Protection

• Ex Protection: ATEX II 2G Ex ib IIB T4 Gb
• Operating Temperature: -20°C to +40°C
• Storage Temperature: -40°C to +85°C
• MIL-STD Compliance: MIL-STD-810 C/D/E/F
• Ingress Protection: IP68 (2m 4h submersible)