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Entel
ATEX-certified marine VHF handheld for hazardous areas, with 4-digit channel support, IP68 waterproofing and 16.5 hours of battery life.
Technical
| Frequency Range | VHF 156-163MHz |
|---|---|
| Channels | Marine INT/USA & CAN inc. new 4-digit CH |
| Channel Spacing Analogue | 12.5kHz & 25kHz |
| Battery | CNB950EV2 1800mAh Lithium-ion |
| Overall Dimensions (HxWxD) | 138mm x 60mm x 38mm |
| Frequency Stability | ±0.5ppm |
| Operating Voltage | 7.4V |
| Programmable Buttons | 3 |
| Battery Endurance (5/5/90 - Analog Mode) | 16.5 hours |
| Output Power | 1 Watt |
| Modulation Limiting | ±2.5kHz / ±5.0kHz |
| FM Hum and Noise (Transmitter) | >-40dB / >-45dB |
| Unwanted Emissions | <2nW up to 1GHz, <20nW from 1GHz to 2GHz |
| Adjacent Channel Power | >60 dBc / >70dBc |
| Audio Response (FM) (Transmitter) | 300Hz to 3kHz -6dB/Octave |
| Audio Distortion (Transmitter) | <5% |
| FM Modulation | 16K0F3E |
| Analogue Sensitivity | -120dBm (0.2uV) for 12dB SINAD |
| Intermodulation response rejection | >68dB |
| Adjacent Channel Selectivity | >60dB / >70dB |
| Spurious Response Rejection | >70dB |
| Audio Output Power | 1 Watt |
| Audio Distortion (Receiver) | 5% |
| Hum and Noise (Receiver) | >-40dB / >-45dB |
| Audio Response (Receiver) | 300Hz to 3kHz -6dB/Octave |
| Conducted Spurious Emission | <2nW up to 1GHz, <20nW from 1GHz to 2GHz |
| Ex Protection | ATEX II 2G Ex ib IIC T4 Gb |
| Operating Temperature | -20°C to +40°C |
| Storage Temperature | -40°C to +85°C |
| Thermal Shock, Humidity, Shock & Vibration, Packing Test, Drop Test | Compliant MIL-STD-810 C/D/E/F |
| Dust & Liquid Ingress | IP68 (2m 4h Submersible) |
Overview
The Entel DT944FF is a marine VHF handheld covering 156-163MHz, including the newer 4-digit channelling scheme for International, USA and Canadian marine channels, and is certified ATEX II 2G Ex ib IIC T4 Gb for use in hazardous gas atmospheres. It transmits at 1W output from a CNB950EV2 1800mAh lithium-ion battery, rated for 16.5 hours in analogue mode on a 5/5/90 duty cycle. The radio carries an IP68 rating (2 metres, 4 hours submersion) and is built to MIL-STD-810 C/D/E/F for shock, vibration and thermal extremes, operating across -20 to +40 degrees C.
Questions
Yes. The DT944FF carries an IP68 rating, tested to 2 metres' submersion for 4 hours, and its construction is compliant with MIL-STD-810 C/D/E/F for shock and environmental ruggedness.
Yes. It is ATEX certified to II 2G Ex ib IIC T4 Gb, the highest gas-group rating in the DT9 series, making it suitable for the most hazardous zones.
The DT944FF ships with a CNB950EV2 1800mAh lithium-ion battery and is rated for 16.5 hours on a standard 5/5/90 duty cycle (5% transmit, 5% receive, 90% standby) in analogue mode.
The DT944FF operates on the VHF 156-163MHz marine band, covering International, USA and Canadian marine channels including the new 4-digit channel numbering, with 12.5kHz and 25kHz channel spacing.
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