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Digital Radio PDT Terminal
D8500
Product Features
Main Functions
Technical Specifications

Digital-analog compatibility, multi-mode integration
Supports four operating modes: digital trunking (PDT trunking), digital conventional (PDT conventional), analog trunking (MPT1327 trunking), and analog conventional. The product can be used in the existing analog system or a newly created digital system to achieve a smooth transition excellently.
Fall alarm
After a user enters a dangerous zone, the fall alarm function is enabled: if the user encounters danger and falls to the ground suddenly or does not move for a long time, an emergency alarm will be triggered, and the terminal will send the alarm to the team staff and dispatch console and specify the location for rescue. Meanwhile, the terminal will generate a huge sound, so as to make it easier for rescuers to find the user in danger.
Built-in Bluetooth
Frees users from the trouble of audio cables, making calls easier and more convenient.
Better Rx sensitivity
Adopts a more advanced hardware solution to significantly enhance Rx sensitivity, enable automatic power control, and fully utilize the redundancy architecture and self-check principle of the system to realize the steady operation of the system.
Robust audio performance
Adopts the digital noise reduction design and compensates for background noise, so that even in noisy environments and on the signal coverage edge, voices remain clear; the built-in high-power loudspeaker (max: 3W) provides more sonorous voice support during task execution.
Support for the encryption function and insertion/removal of encryption cards
Supports TF cards of up to 16GB, used to encrypt data keys, etc.
Efficient GPS+Beidou dual positioning service, enabling positioning information to be uploaded quickly
The built-in GPS+Beidou dual positioning module supports GPS positioning and Beidou positioning functions. There are various methods for reporting positioning information, including reporting by time interval, reporting by distance, reporting by time-distance combination, pulling, etc.
Excellent GPS processing to prevent channel congestion effectively
Supports the positioning information reporting methods stipulated in the PDT standard. When the number of users is small and the reporting frequency is low, you can choose the pulling method for reporting. When the number of users is large and the reporting frequency is high, you can use multiple service channels for reporting.
Compact size, outstanding functions
Supports 2-in-1 channel selection (volume and large-capacity) to prevent misoperations; provides a large PTT side key, as well as 3 functional soft keys available for presetting, to give users comfortable touch experiences and extraordinary operation experiences.
Ergonomic design, high reliability, high durability
The product is medium-sized, steady and full of dynamics, with a harmonious and unified design style; the all-new non-slip design gives users a firmer grip experience; it adopts the latest liquid silicone rubber material, and the Ingress Protection level reaches IP68, enabling the product to better adapt to use in severe environments and enabling reliable communication even in wet environments.


Digital trunking

Supports TMO/DMO/RMO operating modes, registration, deregistration, authentication, roaming, voice single call, voice group call, group call late entry, group call concurrent entry, broadcast call, emergency call, priority call, alarm generation, environmental listening, cross-cell handover, call duration limit, speaker identity recognition, PTT authorization, remote kill, remote stun, revival, dynamic regrouping, call restriction, status messaging, short messaging, satellite positioning information transmission, end-to-end security, wired phone call, power control, included call, call forwarding, busy queuing, packet data, and air interface security.

Digital conventional

Voice single call, voice group call, text messaging, channel scanning, caller ID display, group call display

Analog trunking

Voice single call, voice group call, PSTN/PABX call, short-code call, emergency call, scanning, priority call, broadcast call, implicit group, participating group, response group, remote stun, remote start

Analog conventional

Voice group call, etc.


CategoryNameDescription
General specificationsFrequency range

350MHz to 400MHz

400MHz to 470MHz

Channel spacing12.5kHz/25kHz
Frequency stability±1.5ppm
Dimensions (H x W x D)129×54×36mm
WeightAbout 340g (including the battery, antenna, and back clip)
Operating voltageRated: 7.4V
Battery capacity2400mAh lithium ion battery
Operating durationAnalog: >12 hours, digital: >17 hours
Screen240×320 pixels, 2.0-inch translucent color screen
Display languageSupports Chinese and English.
Output power1W/4W, adjustable, automatic power control
Rx sensitivity≤-118dBm (when BER=5%)
Positioning moduleTTFF cold start<1 minute
TTFF hot start<10s
Horizontal positioning accuracy<5m
GNSSGPS/Beidou dual mode
Built-in BluetoothVersionBluetooth 4.0, Supports Bluetooth voice and Bluetooth PTT equipment.                         
Environmental specificationsOperating temperature-30℃ to +60℃
Storage temperature-40℃ to +85℃
Ingress Protection levelIP68

* With the continuous development of technology, the above data may be changed without prior notification.