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DT544

The ultra durable DTEx Series sets the benchmark for next-generation on-board radios. Standard features include high visibility OLED display, channel voice annunciation option, high torque ergonomic controls designed for gloved-hand use, and industry-leading IP68 2m 4 hours submersible rating, to provide 100% reliability and usability even in the most extreme conditions.

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General

Channels - The DT544 Marine can be programmed with both analogue and digital channels, this is clearly indicated on the display together with the frequency. If a semi duplex channel is programmed the word “Repeater” will be displayed instead of the frequency.

Benefits of digital - Digital mode which gives significantly better audio, extended range and longer battery life in comparison to analogue radios.

Voice annunciation – This programmable feature announces either the channel position selected or a 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.

Environmental protection to IP68 (2 Meters for 4 hours) - The DT544 offers the highest submersibility rating of any manufacturer. This protects against corrosion, withstanding total immersion in water to a depth of 2 meters for 4 hours to protect against the likely hazards encountered in extremely wet environments.

Robust accessory socket – DT544 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. The rugged, multi-pin interface and Micro-USB socket are both submersible and gold-plated to minimize any risk of damage and protect against corrosion. To ensure the integrity of IS protection levels any accessory connected to the handset automatically undergoes a validation process to safeguard against non-compliant accessories being used. All DT544 accessories incorporate a robust locking connector to further safeguard the safety of the user.

High contrast white on black OLED display – the DT544 model benefits from a high contrast white on black OLED display that delivers superior readability in varying light conditions adding to the DT544’s intuitive user interface.

Li-Ion battery technology & improved talk time – DT544 radios are supplied with the latest intelligent Lithium-Ion battery technology as standard. One key advantage of Lithium-Ion battery technology is the way it eliminates ‘memory effect’, meaning that there is no need to fully discharge your battery before recharging. As a result of this, you are assured of a full charge each and every time you take your Entel battery from its charger.

Superior Audio - DT544 portables deliver loud & crisp audio no matter what environment you are in. All of the DT544's range of accessories incorporate a robust locking plug and high-grade cable and benefit from Entel’s proprietary “Smart Speech Tailoring” technology. This automatically detects the type of accessory connected and optimizes the audio accordingly to deliver the very best performance.


Convenience

Simple onboard reprogramming app - With our free, unique and simple to use PC app, you can easily re-program a DT544 radio whilst still onboard. The user friendly app makes it easy to drag and drop a new programming file from an email to your DT544 radio(s).

This is a simple and seamless process that can be carried out by non-technical personnel.

Keylock - To avoid accidental operation, your radio's keys & controls can be locked.

Programmable channel monitor button - If you have channel protection enabled on your DT544 portable, all signals other than your own networks will be filtered out. This can be temporarily disabled allowing you to monitor all signals on your channel.

Audio Accessories & BA Support - Entel also offer an extensive range of accessories including Draegor BA, most popular for Fire Fighters is the CXR bone conductive throat and skull microphones which eliminate ambient noise, further enhanced by DT544's speech tailoring technology delivering intelligible communications first time, every time

Scan - a programmable button allows channel scanning.


Safety

IECEx IIB Approved - The DT544 IECEx certified portables meet IIB T4 - the most stringent IECEx ratings as per EU directive 94/9/EC.


General

Frequency Range VHF 156 to 163.275MHz
Channel Spacing 12.5 & 25KHz
Operating Voltage 7.4v
Weight 435g
Overall Dimensions (HxWxD) 138mm x 60mm x 38mm
Programmable Buttons 5
Channels INT/USA/CAN mode plus private
Battery CNB550EV2 1800mAh Lithium-Ion
Battery Endurance (5/5/90) Analogue mode 12 hours
Battery Endurance (5/5/90) Digital mode n/a

Transmitter

Output Power VHF IECEX IIB 3.9 Watts
Modulation Limiting ±2.5kHz @ 12.5kHz
±5.0kHz @ 25kHz
Conducted / Radiated Spurious Emissions Better than -36dBm
Adjacent Channel Power Better than 60dB
Audio Distortion (typical) 3%

Receiver

Sensitivity (Typical) Analogue
-121dBm (0.2uV) for 12dB SINAD
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

Environmental

Operating Temperature -20°C to +55°C
Storage Temperature -40°C to +85°C
Thermal Shock, Humidity, Shock & Vibration, Packing Test, Drop Test MIL-STD810 C/D/E/F/G
Water Ingress IP68 2 metres, 4 hours submersible
Approvals See www.entel.co.uk/red
Ex Protection IECEx Ex ib IIB T4 Gb

As standard the DT Series portable is supplied with:

  • Li-Ion battery pack
  • Drop in charger
  • Belt Clip
  • High Efficiency Antenna
  • Quick Start User Guide