DR-105B Professional DMR Waterproof Two-Way Radio

DR-105B

Professional DMR Waterproof Two-Way Radio

• DMO Dual Time-slot Communication
• Enhanced Anti-Interference Performance
• High-definition TFT Display
• VOX Hands-free Function
• Digital-Analog Compatibility
• Emergency Alert Function
• AI-based Voice Recognition
• IP67 Environmental Protection

Features:

DMO Dual Time-slot Communication for improved efficiencyEnables two independent communication channels on a single frequency, improving frequency utilization and supporting stable communication during peak operating hours.

Emergency Alert

Equipped with high-priority emergency alert function, which can send warning signals to team members and control center in emergency situations.

High-Capacity Li-Polymer Battery

Comes with 2000mAh lithium polymer battery, providing up to approximately 21 hours of operating time to meet daily work requirements.

Military-Grade Durability

Compliant with IP67 protection standard and MIL-STD-810 C/D/E/F/G specifications. It has passed drop, temperature, humidity, dust and vibration tests, and maintains stable performance in daily commercial scenarios under accidental splashing or minor impacts.

Digital-Analog Compatibility

Compatible with conventional analog communication equipment and systems, supporting smooth upgrade from analog to digital communication and improving equipment applicability.

TFT HD Color Display

Equipped with TFT color display and intuitive graphic interface, with humanized menu design for convenient viewing and flexible operation.

Voice Encryption

Built with basic voice encryption function to protect communication privacy and information security.

Extended Functional Support

Optimized hardware design enables multiple auxiliary functions, including remote monitoring, remote detection, call alert, remote control and other features to enrich application scenarios.

AI-based Voice Optimization

Equipped with 36mm large-diameter speaker and AI voice recognition technology, it reduces ambient noise, weakens sound distortion and suppresses adjacent signal interference, realizing clear communication in complex working environments.

Extended Communication Coverage

Adopts high-sensitivity receiving module and high-efficiency monopole antenna, which improves signal penetration and ensures stable call quality in weak signal areas. It can maintain stable RF output performance under low battery conditions.The antenna adopts reinforced threaded structure to reduce breakage and bending, extend service life and optimize signal radiation efficiency.

Bluetooth 5.0

DR-105B supports Bluetooth 5.0, featuring stable connection, good compatibility and low communication delay.

Application

With ergonomic design, AI voice recognition, clear digital audio and optional functions such as automatic roaming, Bluetooth and digital trunking, DR-105B provides reliable communication support for industrial production, transportation, catering, public security, construction and other industries.

Technical parameters

General specification

 

Items	UHF	VHF
Frequency	400-480MHz	136-174MHz
Channel Zone	16
Channel Capacity	4000  (250 Channels / Zone)
Antenna impedance	50Ω
Dimension(H*W*D)	105x56x35mm
Weight (W/battery)	235g
Li-pol battery	2000mAh
Rated Voltage	DC: 7.4V

Battery:

The average battery life under 5/5/90 duty cycle, and using carrier squelch and   TX high power 2000mAH li-pol battery         Analogue: 10.2hours / Digital: 14.3hours

Note: The battery working life may have little difference.

Battery capacity maybe change without notice, but the list is standard specification.

Receiver

Items	UHF	VHF
Frequency	400-480MHz	136-174MHz
Channel Spacing	12.5kHz/25kHz
Frequency stability      (-20℃、+60℃、+25℃)	+/-0.5ppm
Analogue sensitivity	0.18μV
Digital sensitivity(5% BER)	0.25μV / 0.2μV
Intermodulation	65dB
Adjacent channel selectivity	60dB@12.5kHz / 65dB@25kHz
Spurious rejection	65dB
Rated audio	500mw
Audio distortion @rated audio	3%
FM hum &noise	-40dB@12.5kHz / -45dB@25kHz
Audio response	+1 、-3dB
Conducted / radiated emission	-57dBm

 

Transmitter

Items	UHF	VHF
Frequency	400-480MHz	136-174MHz
Channel Spacing	12.5kHz/25kHz
Frequency stability       (-30℃、+60℃、+25℃)	+/-0.5ppm
Low Power	1W	2W
High power	4.5W	5W
Modulation restriction	±2.5dB@12.5kHz / ±5.0dB@25kHz
FM hum& noise	-40dB@12.5kHz / -45dB@25kHz
Conducted/radiated emission	-36dBm＜1GHz / -30dBm＞1GHz
Adjacent channel selectivity	-60dB@12.5kHz / -65dB@25kHz
Audio Response	+1 、-3dB
Audio Distortion	3%
FM modulation	12.5kHz :11KOF3E 25kHz :16KOF3E
4FSK digital modulation	12.5kHz data: 7K60F1D and 7K60FXD 12.5kHz audio: 7K60F1E and 77K60FXE 12.5kHz data and audio: 7K60F1W
Digital vocoder	AMBE+2TM
Digital agreement	ETSI-TS102 361-1 、-2 、-3

 

Main Fratures: ● Private Call ● Group Call ● All Call ● Scan ● Remote Kill ● Remote Revive ● Battery Save Mode ● One-touch Call ● Remote Monitor

● Call Alert ● Roaming ● Prompt Tone On/Off ● Low Power Voice/Icon Prompt ● Support Voice Prompt for | Voice Prompt for Channel Switching and Function Setting  ● Two Side Programmable Long Press Buttons.