Realizes 2 talk paths on a frequency at the same time, multiply the efficiency and doubling the frequency utilization. Ensure real-time communication at peak　service hours.

Emergency Alarm
Emergency alarms have the highest priority and can be used to send alarms to companions and the control center when an emergency situation is encountered.

High Capacity Li-poly Battery
Equipped with 2000mAh lithium polymer battery can work for up to about 21 hours to meet customers' working needs. Military Quality, Stable and Reliable The product is IP67 and MIL-STD-810 C/D/E/F/G compliant; the quality testing includes drop, high and low temperature, humidity, dustproof, and vibration; the product still functions properly in busy commercial service when accidental drops or showers.

Digital-Analog compatibility, Value-added experience
Support for compatibility with existing conventional analog products or systems, to ensure a smooth transition from analog to digital products, thereby improving product utilization.

Digital-Analog compatibility, Value-added experience
Support for compatibility with existing conventional analog products or systems, to ensure a smooth transition from analog to digital products, thereby improving product utilization.

TFT HD Color Display, Easy and Flexible Operation
TFT color display interface with visual icon display and  humanized menu operation make reading and control    more convenient and flexible.

Voice Encryption to Ensure Users' Communication Security
The function provides basic voice encryption to  safeguard users'communication security.

More supplementary services to provide richer application experience
The hardware is newly upgraded to support a variety of services such as remote monitor, remote detection, call alert, remote kill, remote revive, etc., providing users with  richer application experience.

AI-based Voice

The built-in 36mm diameter speaker and advanced AI-based Voice　Recognition technology deliver louder, clearer audio by eliminating unwanted ambient noise, reducing distortion and suppressing whistling caused by other devices in close proximity to each other. Ambient noise will no longer slow down communications and users can hear and be heard wherever they are.

Extended Communication Coverage

DR-105 utilizes a high-sensitivity receiver module and a high-efficiency monopole antenna to enhance signal penetration, providing good calls in rooms with weak signals, and maintaining stable performance and RF power output in low battery conditions.

In addition, the monopole antenna has a unique thicker thread design that is less prone to breakage and bending, which helps to increase the antenna's life, as well as increase radiation efficiency and extend radio communication coverage.

Bluetooth 5.0

DR-105 supports Bluetooth; it is fast connection, high compatibility, wide coverage, stable, no lag, and zero delay on calls.

DR-105

Adopting humanized appearance design,AI-based voice recognition technology, clear digital audio, with automatic roaming, GPS, Bluetooth, digital trunking and other optional features, DR-105 provides solid and reliable communication guarantee for emergency communication and management dispatching of users in business, manufacturing, railroad, airport, hotel, shopping malls, security, entertainment venues, construction sites and other industries.

Applications

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(HWD)	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