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TKR-851K2
UHF Repeater - Low Power
Discontinued model
Key Features
| Frequency Range: 480-512 MHz |
| 16 Full-Duplex Channels & Single Priority Scan |
| Variable RF Output - 1 W to 25 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, 10A |
| Handle | Yes |
| Hardware Fixture | Yes |
| Instruction Manual | Yes, English & Spanish |
| 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 |
| SelCall Function | Yes |
| Time-Out Timer | Yes |
| Transceiver Password | Yes |
| Windows PC Programming and Tuning | Yes |
Base Station & Repeater Features
PMR Construction Features
Applicable Standards
| FCC | Yes, Parts 90 & 90.210 |
| Measurement - EIA Standards | Yes |
Technical Specifications
| Frequency Range - K2 Type | 480 - 512 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 | Receive: 100%
Transmit: 100% |
| 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 | 83 dB at 25 kHz 75 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 at 25, 50 kHz 75 dB at 12.5, 25 kHz |
| Sensitivity - EIA 12 dB SINAD | 0.35 µV 0.45 µV at 20 dB Quieting |
| Spurious Reponse Rejection (Analogue) | 90 dB |
Transmitter Specifications
| RF Power Output | 1 W to 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 |