DT825
Entel designed and built the industrial-grade DTEx DMR Digital Series without compromise. This ATEX-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
- 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.
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 - Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel's DT800 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 - DT800 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 - DT800 display models benefit from a high contrast white on black OLED display that delivers superior readability in varying light conditions adding to the DT800’s intuitive user interface.
Li-ion battery technology & improved talk time - DT800 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. DT800 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 DT800 radios by way of free software updates. Using Entel’s innovative End User Programmer app Entel DT800 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 DT800 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 group they manage.
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 DT800 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
AES 256 bit Encryption - Available as a licensed feature. Entel radios support this highest form of encryption which must be ordered at the same time as the radio(s).
Safety
ATEX IIA T4 Approved - For those users not restricted to the IIC 1 watt regulatory classification, the DT800 series of ATEX certified portables meet IIA T4 with 4 watts of transmitter power.
Personal Attack Button - DT800 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 | CNB950EV2 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 | 1 Watt |
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 | ATEX II 2G Ex ib IIA T4 Gb |
Operating Temperature | -20°C to +40°C |
Storage Temperature | -40°C to +85°C |
Dust & Liquid Ingress | IP68 (2m 4h Submersible) |
Thermal Shock, Humidity, Shock & Vibration, Packing Test, Drop Test | Compliant MIL-STD-810 C/D/E/F |
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
Featured Products
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CXR5/DT9
Bone conductive skull microphone
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CXR16/DT9
Bone conductive throat microphone
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CNB950EV2
1800mAh rechargeable Lithium-Ion battery pack
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CMP/DT9
Rugged submersible remote speaker microphone
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C-C550/DT
SAVOX C-C550 Remote Speaker Microphone, approved for use with DT800 and DT900 Series ATEX radios.
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CHPD/DT9
Double ear-cup ear defender headset with headband, c/w PTT-E/DT9
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CHPHD/DT9
Double ear-cup ear defender headset with hardhat fixings, c/w PTT-E/DT9
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CHPHS/DT9
Single ear-cup ear defender headset with hardhat fixings, c/w PTT-E/DT9
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CLCDT5
Heavy duty leather case and strap with belt loop for the DTEx series hand portable radio
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CSBHT
Six pod intelligent rapid charger, 110-240V. Specify 2-pin or 3-pin plug
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EA12/DT9
Earpiece microphone & PTT
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EHP/DT9
Listen only earpiece - Not currently available
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PTT-E/DT9
Spare heavy duty waterproof push-to-talk for CHP accessories.
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PTT-C/DT9
Spare heavy duty waterproof push-to-talk for CXR accessories.
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CSAHT
Single pod rapid charger, 110-240v, specify 2-pin or 3-pin plug
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CCAHT-230
Single pod trickle charger, specify 2-pin or 3-pin plug
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CAT420
VHF136-174MHz antenna