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DT525

Entel designed and built the industrial-grade DMR Digital Series without compromise. This IECEx-certified portable delivers exceptionally loud and clear audio, essential for high ambient noise environments.

Designed to meet users’ safety and business-critical needs, the display and non-display models are versatile and feature-rich so that they can be configured for simple or advanced systems.

With a market-leading IP68 submersible rating (2 meters 4 hours), the DTEx can withstand everyday use in extreme and hostile environments, and the ultra-tactile buttons and high torque controls allow the DTEx to be operated even with gloved hands.

To ensure your workforce always receives intelligible communications, we have developed an extensive range of certified and approved audio accessories to complement the DTEx Series, including bone conductive skull mics and ear defender headsets. Please see our accessories section for a complete listing.


KEY FEATURES

  • Analogue & DMR Modes
  • 99 Channels, 8 Zones 
  • IP68 Submersible (2m, 4 hours) 
  • Compliant to MILSTD construction 810C/D/E/F/G
  • Multiple channel zones 
  • Exceptionally loud & best clarity audio - in class
  • 2 slot simplex
  • Multiple receive groups 
  • Talker alias 
  • Lone-Worker
  • Man-Down (option)
  • AES 256 bit encryption (Licence option)
  • IP Site Roaming (Licence option)
  • Personal attack button
  • Group calling
  • Individual calling
  • Caller ID
  • Detailed or large display info - programmable 
  • Programmable buttons 
  • Gold plated accessory connector 
  • Locking accessory connector
  • Accessory audio tailoring optimises audio for each accessory
  • High contrast white on black OLED
  • Text messaging (transmit & receive)
  • Programmable switch on logo
  • All call (receive only)
  • Memory scan
  • Drag and drop end user programmer, no need to visit site

We are releasing new features all the time, if there is a feature you require that is not already listed above please give us a call.

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General

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

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 DT525 Series 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

Robust accessory socket - DT525 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. The rugged, multi-pin interface and Micro-USB socket are both submersible and gold-plated to minimise 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 DTEx accessories incorporate a robust locking connector to further safeguard the safety of the user.

High contrast white on black OLED display - DT525 display models benefit from a high contrast white on black OLED display that delivers superior readability in varying light conditions adding to the DT500’s intuitive user interface.

Li-ion battery technology & improved talk time - DT525 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. DT525 radios also benefit from TDMA Digital mode signalling that increases battery endurance by up-to 40% ensuring longer standby / talk times.

Superior Audio - Using the latest noise reduction technology Entel’s DTEx portables deliver loud & crisp audio no matter what environment you are in. All of the DTEx 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

Field upgradeable - Entel adds and improves features on its DT525 radios by way of free software updates. Using Entel’s innovative End User Programmer app Entel DT525 radios can be easily upgraded without the Dealer having to visit site or courier the radios back and forth saving significant time and expense.

TDMA Two-Slot Direct Mode (aka ‘Two Slot Simplex’) - The DMR Digital standard splits a single 12.5Khz Analogue channel into two separate channels therefore doubling the number of channels available to the radio user. Two-Slot operation is normally only possible when a DMR Repeater is included in the system. However Entel DMR radios overcome this restriction on both Simplex & DMR446 channels so both channels (slots) are always available to the user no matter the channel type.

Mixed Mode Operation - In Mixed Mode operation the radio can receive both DMR Digital & Analogue modes without the user having to change channel. Mixed Mode is beneficial where both Analogue & Digital radios are being used together, e.g. where a customer is migrating from an existing Analogue radio system to a DMR Digital radio system.

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 DT525 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.

Multiple channel Zones - Entel's radios support 8 channel zones with up-to 99 channels per zone. The Zones can be used to store channels for use at different sites, user groups etc.

Multiple receive groups - This enables you to monitor two or more groups, e.g. a manager needs to monitor the Cleaning and Maintenance groups he manages.

Talker Alias - Most radios require you to have an up to date contact list, just like your phone, to display who is calling / talking. With Entel's Talker Alias feature the radios alias is transmitted as text to the receiving radio(s) so it is always displayed (without having to re-program each radios contact list every time you add radios to the system).

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

IP Site Roaming - This provides large area coverage by seamlessly roaming between multiple DMR repeaters.

Individual, Group Calling & Caller ID - Entel’s DT525 models provide both Individual and Group calling which can be selected via the channel control and, on display models, the radio's large contact list. Display models can also display the callers ID.

Text messaging - Using the industry standard DMR messaging protocol, Entel's radios are able to transmit and receive text messages to / from other devices including, but not limited to, alarm panels, PC dispatchers, other radios etc.

Programmable switch on logo - As a personal touch it is possible to upload your customers own logo to Entel display radios so it is displayed when the radio is booting up.

All call - This is the ability to call all radios on the channel at once. This is especially useful when making important announcements such as an emergency safety evacuation call etc.

Memory scan – enables the radios user to create / change their own channel scan list.

Audio Accessories & BA Support - A vast range of Entel original audio accessories is available from a simple earpiece to bone conductive options for extremely high noise environments. In addition, 3rd party Breathing Apparatus comms kits are also supported. Entel’s Sure Speech™ intelligent speech tailoring technology optimises audio to match the connected accessory, ensuring the very best clarity, volume and natural sounding audio.


Security

High level Encryption - In DMR Digital mode DT525 portables provide enhanced privacy as standard therefore providing additional protection compared to Analogue radios. If a very high level of security is required AES256 Encryption can be enabled.


Safety

IECEx Approval - The DT525 series of intrinsically safe certified portables deliver a full 4 watts of transmitter power and are suitable for those users who do not need to comply with the European ATEX standard (For sales outside Europe only).

Personal Attack Button - DT525 portables include a programmable personal attack button. Once activated, the radio will send an alarm call to other radio(s) as well as sounding a local alarm.

Lone-Worker & Man-Down Alarms - DTEx radios support Digital mode Lone-Worker, Man-Down* and Emergency Button features with call interrupt. This, dealer programmable, 3 levels of safety ensures an alarm is raised as soon as is possible (even if the channel is already busy). *optional


General

Frequency Range VHF 136-174 MHz
Channels 99
Number of Zones 8
Vocoder AMBE+2™
Battery CNB550E 1800mAh Lithium-ion
Overall Dimensions (HxWxD) 138mm x 60mm x 38mm
Frequency Stability ±0.5ppm
Operating Voltage 7.4v
Programmable Buttons 3
Channel Spacing 25KHz / 12.5KHz
Battery Endurance (5/5/90 duty cycle @ 4W) Analogue 10 hours
Digital 15 hours
Battery care information: Visit entel.co.uk/battery_care

Transmitter

Output Power 4W (High) / 1W (Low)
Modulation Limiting ±5.0KHz / ±2.5KHz
FM Hum and Noise >-45dB / >-40dB
Unwanted Emissions -57dBm up to 1GHz, -47dBm from 1GHz to 4GHz
Adjacent Channel Power >60dBc
Audio Response (FM) 300Hz to 3KHz -6dB/Octave
Audio Distortion <5%
FM Modulation 16K0F3E / 8K0F3E
4FSK Digital Modulation 7K60FXE / 7K60FXD

Receiver

Digital Sensitivity -121dBm (0.2uV) for 5% BER
Analogue Sensitivity -121dBm (0.2uV) for 12dB SINAD
Intermodulation Response >65dB
Adjacent Channel Selectivity >70dB / >60dB
Spurious Rejection >70dB
Rated Audio Power 2 Watts
Audio Distortion <5%
Hum and Noise >-45dB / >-40dB
Audio Response 300Hz to 3KHz -6dB/Octave
Conducted Spurious Emissions -57dBm up to 1GHz, -47dBm from 1GHz to 4GHz

Environmental

Ex Protection Ex ib IIA 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/G
Dust & Liquid Ingress IP68 (2m 4h Submersible)

As standard the DT Series portable is supplied with:

  • Li-ion battery pack
  • Drop in charger
  • Spring loaded belt clip
  • High efficiency antenna
  • Quick start user guide

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