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Kirisun TR850 DMR Repeater

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Kirisun TR850 DMR Repeater

Professional 3U Design
Professional 3U design leaves enough space for an added duplexer and is suitable for both desk-top, cabinet and rack installations.
Outstanding Heat Dissipation
The unique cooling design combines a built-in heat pipe and an intelligent control fan, ensuring  very efficient heat dissipation preventing the repeater from over-heating in high output power mode.
Smart Digital-Analog auto detection
TR850 can be configured to analog, digital or mixed mode. When configured to mixed mode, the repeater can dynamically switch between analog and digital depending on the type of call it receives.
Accessory Expansion
TR850 supports third party development via a rear port of the repeater. This is achieved via the signal streaming and pin control through the repeater ports.
IP Connecting
IP connecting is a function, which enables repeaters in different areas to switch data, voice and packets over a TCP/IP based network.
LED Indicator
There are 9 LED indicators on the front of panel to enable you to identify the repeater status clearly.

Software Upgradable to DMR Tier2 or Tier3

The advanced features can be upgraded to your existing TR850 repeaters by software without purchasing a new one. By software upgrading, the repeater can be upgrade to used as DMR Tier2 repeater or DMR Tier3 transetransceiver.


Channel Capacity


RF Output

45W(VHF) / 40W(UHF)

Transmitting Current Drain


Frequency Range

136-174MHz / 400-470MHz

Channel Spacing

12.5kHz / 20kHz / 25kHz





Operating Temperature


Operating Voltage

DC13.8±20%   Option:AC 100—250V 50/60Hz

Storage Temperature



IEC 61000-4-2(level 4)

Max Duty Cycle



Frequency Stability

±0.5 ppm

RF Output

45W(VHF) / 40W(UHF)

FM Hum and Noise

-40dB@12.5kHz   -45dB@20kHz/25kHz

Conducted/Radiated Emission

-36dBm@<1GHz, -30dBm@>1GHz

Adjacent Channel Power

-60dB@12.5kHz, -70dB@20kHz/25kHz

FM Modulation Mode

12.5KHz:11KΦF3E   25KHz:16KΦF3E

Modulation Maximum Deviation

2.5kHz@12.5kHz   , 4kHz@20kHz/5kHz@25kHz

Audio Response


Audio Distortion

 < 3%



4FSK Digital Modulation

12.5KHz(data only):7K60FXD, 12.5KHz(data+voice):7K60FXE


Frequency Stability

±0.5 ppm

Analog Sensitivity

<0.30μV (12dB SINAD)

Digital Sensitivity

<0.30μV (5%BER)


TIA603:75dB   ETSI:75dB

Adjacent Channel Selectivity

TIA603:70dB @ 12.5 kHz / 75dB @ 20/25 kHz

ETSI: 70dB @ 12.5 kHz / 75dB @ 20/25 kHz

Spurious Response Rejection

TIA603:75dB   ETSI:70dB

Conducted Spurious Emission

-57dBm@ < 1GHz,-47dBm @> 1GHz

Rated Audio Distortion

 < 3%

Hum and Noise

-40dB@12.5kHz,   -45dB@20kHz/25kHz

Audio Response


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