• TKR-850K3

UHF Repeater - High Power  



Key Features 


Frequency Range: 400-430 MHz

16 Full-Duplex Channels & Single Priority Scan

Variable RF Output - 15 W to 40 W

Windows Programming & Tuning Software

External Control I/O via D-Sub Connector

Battery Back-up System

Flash Memory For Firmware/System Upgrades

Durable Die-Cast Chassis Construction


Supplied With 


Cushion Yes

D.C. Cable Yes, 4m long

Foot Yes, 4 pcs

Front Glass Yes

Fuse Yes, 15A

Handle Yes

Hardware Fixture Yes

Instruction Manual Yes, English, Spanish & French

Screw Set Yes


PMR General Features 


Character Display (Numeric) 2 Characters

Compact Design Yes

Companded Audio Yes

DB-25 Accessory Connector Yes

DTMF Function Yes

Ease of Operating Use Yes

Embedded Message Yes

Kenwood ESN (Electronic Serial Number) Yes

Programmable Function Keys 6 Programmable Function Keys

PTT ID Yes

QT (CTCSS) / DQT (digital) Yes

RSSI Level Indicator Yes

Scan Yes

Time-Out Timer Yes

Transceiver Password Yes

Windows PC Programming and Tuning Yes


Base Station & Repeater Features 


19" Rack Mount Design Yes

Backup Power Features with Warnings Yes

"Base Station" or "Repeater" Mode Operation Yes

Base Station Features Yes

Conventional or Trunked System Use Yes

CW ID Yes

Flash ROM for Future Upgrades Yes

Front Mounted Speaker Yes

Full-Duplex Operation Yes

LED Display & Indicators Yes

Programmable Features - 6 PF keys, 2 x LEDs, volume knob, speaker and tones Yes

Repeater Features Yes

Time-Out Timer Yes

Windows Programming and Tuning Software Yes


Applicable Standards 


FCC Yes, Parts 22, 74, 90 & 95


Technical Specifications 


Frequency Range - K3 Type 400 - 430 MHz

Number of Channels 16

Channel Spacing Wide: 25 kHz

Narrow: 12.5 kHz

Antenna Impedance - 50 Ohm Yes

Antenna Connector RX: BNC TX: N

Current Drain Stand-By: 0.8 A

Receive: 1.2 A 

Transmit: 13.0 A

CW ID Variable speed/tone frequency/modulation

CW Message 8 x 32 characters max.

Duty Cycle 100% at 15 W

Frequency Stability ± 1.5 ppm (-30 °C to + 60 °C)

Operating Modes FM

Operating Temperature Range -30 °C to + 60 °C

Operating Voltage 13.6 V DC ± 15% Negative Ground

PLL Channel Steps 5.0 kHz/6.25 kHz

Repeater Hold Time From "Off" to 10 seconds

Test Tone Variable modulation/frequency

Dimensions 483 x 88 x 340 mm

Weight (net) 9.7 kg


Receiver Specifications 


Adjacent Channel Selectivity 85 dB at 25 kHz 

77 dB at 12.5 kHz

Audio Output 4 W with less than 5% distortion

Circuitry - Double Conversion Superheterodyne Yes

FM Hum & Noise Wide/Narrow = 50/45 dB

Intermodulation 78 dB @ ± 25, 50 kHz

75 dB @ ± 12.5, 25 kHz

Selectivity (Analogue) 25 kHz/12.5 kHz = 83 dB/75 dB

Sensitivity (Analogue) - EIA 12 dB SINAD 0.35 µV. 0.45 µV @ 20 dB quieting

Spurious Reponse Rejection (Analogue) 90 dB


Transmitter Specifications 


RF Power Output 15 W to 40 W (100% Duty Cycle at 25 W)

FM Hum & Noise Wide/Narrow = 50/45 dB

Microphone Impedance 600 Ohm

Modulation Distortion Less than 3%

Modulation Limiting ± 5 kHz at 25 kHz 

± 2.5 kHz at 12.5 kHz

Spurious Response (EIA) 80 dB


TKR-850K3

  • Product Code: TKR-850K3
  • Availability: In Stock

Tags: Analogue, Licensed, Repeaters