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  • DR-850 ( DMR ).jpg

DR-850 Handheld DMR Digital Radio Two Way


  • Commodity name: DR-850 Handheld DMR Digital Radio Two Way
  • Model Number: DR-850 ( DMR )
  • Brand: Kydera
  • Product Origin: Quanzhou
  • Type: Two Way Radio

Email:info@kydera.com  


Category:

Online inquiry

Detailed Introduction


DR-850 Handheld  DMR digital radio two way

Main Features

• Private call

• Group call

• All call

• Kill

• Revive

• Battery save mode

• One-touch call

• Call alert

• Records for 200 hours

• Low power voice/icon prompt

• Prompt tone on/off

• Remote monitor

• Support voice prompt for channel switching or function-option

• Two programmable buttons for long pressing are available on the side

 

Features

1.True-2-slot

2.Support both digital and analog modes.

3.To adopt the TFT color display, convenient operation.

4. Be with TFT color display interface and visible icon display.

5. Support up to 4000 channels.

6. Support to modify and set the frequency via keypad.

7. Using 2000mAh polymer lithium battery.

DMR digital radio, short for Digital Mobile Radio, is a type of digital two-way radio technology that offers numerous advantages over traditional analog radios. DMR digital radios provide crystal-clear audio quality, improved coverage, and enhanced privacy features, making them ideal for professional users in industries such as public safety, transportation, and manufacturing. The digital nature of DMR technology allows for more efficient use of frequency spectrum, enabling multiple users to communicate simultaneously on the same channel without interference. One key feature of DMR digital radios is their compatibility with both analog and digital modes providing a smooth transition organizations upgrading from analog systems to digital technology. DMR digital radios support advanced features like text messaging, GPS tracking, and encryption, enhancing communication capabilities and ensuring secure and reliable information exchange With options for individual calling, group calling, and seamless between radio sites, DMR digital radios offer a flexible scalable communication solution for businesses and agencies that require robust and efficient communication tools.

Specification
Model DR-850
Items UHF VHF
FrequencyRange 400-480MHZ; 350-390MHZ 136-174MHZ; 245MHZ
Channel Zone 16
Total Channel Capacity (512) 4000 (250 Channels/Zone)
Antenna Impedance 50Ω
Dimension (H x W x D) 102 x 54 x 35mm
Weight (W/Battery) 225G
Li-polBattery 2000mAh
Rated Voltage DC: 7.4V
Battery  life: The average battery life under5/5/90duty cycle, and using carrier squelch and TX high power. 2000mAh Li-pol battery: Analog: 9.6 hours / Digital: 13.7 hours
 
Receiver
Frequency 400-480MHZ; 350-390MHZ 136-174MHZ; 245MHZ
Channel Spacing 12.5kHz /25kHZ
Frequency Stability (-20℃,+60℃,+25℃) + / - 1.5ppm
Analog Sensitivity (12 dB SINAD) 0.3uV / 0.25uV
Digital Sensitivity (5% BER) 0.25uV / 0.20uV
Intermediation 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
Frequency 400-480MHZ; 350-390MHZ 136-174MHZ; 245MHZ
Channel Spacing 12.5kHz /25kHZ
Frequency Stability (-20℃,+60℃,+25℃) + / - 1.5ppm
Low Power 1W 2W
High Power 4.5W 5W
Modulation Restriction ±2.5kHz@12.5kHz /±5kHz@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: 11K0F3E ; 25kHz: 16K0F3E
4FSK Digital Modulation 12.5kHz Data: 7K60F1D & 7K60FXD ; 12.5kHz Audio: 7K60F1E & 7K60FXE ; 12.5kHz Data & Audio: 7K60F1W
Digital Vocoder AMBE+2 ™
Digital Agreement ETSI-TS102 361-1, -2, -3
 
GPS(Optional)
Precisely and standard designed for a long-term positioning( 95% value>could find 5 satellites @ rated -130dBm signal strength
TTFF (time to first fix) cold start < 1 min
TTFF (time to first fix) warm start < 10 s
Horizontal Position Accuracy < 10 ms

Keyword:

Online Inquiry