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Kenwood Analogue Base Repeaters TKR 850
TKR 850
PMR - VHF / UHF /Analog Base Repeaters
Key Features
| Frequency Range: 440-470 MHz |
| 16 Full-Duplex Channels & Single Priority Scan |
| Variable RF Output - 25 W to 50 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, Italian, German & Dutch |
| Screw Set | Yes |
PMR General Features
| 5-Tone Signalling (multi-format) | Yes |
| 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
| Front Mounted Speaker | Yes |
Accessory Features
| Current drain | Standby (Power Save): 0.3 A
Receive: 1.2 A Transmit/Receive: ≤ 13 A |
Applicable Standards
| E-Mark (95/54/EC) | Yes |
| R&TTE: EN300 086-2 | Yes |
| EN300 113-2 | Yes |
| EN300 219-2 | Yes |
| EN301 489-5 | Yes |
| EU Safety: EN60065 | Yes |
| EU Safety: EN60215 | Yes |
| EU Safety: EN60950-1 | Yes |
| IP54 | Yes |
| Measurement - EN Standards | Yes |
Technical Specifications
| Frequency Range: | 440-470 MHz |
| Number of Channels | 16 |
| Channel Spacing | Wide: 25 kHz
Narrow: 12.5 kHz |
| 5-Tone Standard | EEA, ZVEI, CCIR, ZVEI-2, EIA, Kenwood proprietary |
| Antenna Impedance - 50 Ohm | Yes |
| Antenna Connector | RX: BNC TX: N |
| CW ID | Variable speed/tone frequency/modulation |
| CW Message | 8 x 32 characters max. |
| Duty Cycle | 100% at 25 W |
| Frequency Stability | ± 2 ppm (-30 °C to + 60 °C) |
| Operating Modes | FM |
| Operating Temperature Range | -30 °C to + 60 °C |
| Operating Voltage | 13.2 V DC ± 15% Negative Ground |
| PLL Channel Steps | 2.5 kHz/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 |
| Intermodulation | 72 dB |
| Sensitivity - EN 20 dB SINAD | 0.45 µV |
| Spurious Reponse Rejection (Analogue) | 90 dB |
Transmitter Specifications
| RF Power Output | 25 W to 50 W (100% Duty Cycle at 25 W) |
| Microphone Impedance | 600 Ohm |
| Modulation Distortion | Less than 3% |
| Modulation Limiting | ± 5 kHz at 25 kHz
± 2.5 kHz at 12.5 kHz |
| Spurious Emission (EN) | -36 dBm ≤ 1 GHz
-30 dBm > 1 GHz |
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