BF-TR908
Radio Link Module
BF-TR908 Radio Link Module
SFR DMO DMR OEM/ODM
BF-TR908 is a professional DMR radio link device that enables repeater/base station to connect with another repeater in a remote site where there is no infrastructure of IP connection. It operates in single frequency repeater mode and DMO mode to extend DMR radios communication range. It is mainly used to connect stations without link and provide one slot for voice communication, GPS data and SMS services.
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Highlights
Dual Operating Mode
BF-TR908 can operate in single frequency repeater mode and DMO mode, which greatly extend DMR radios communication range.Specifications
General
| Frequency Range | VHF:150MHz; UHF: 400MHz/350MHz |
| Zone | 1 |
| Channel Capacity | 1024 |
| Channel Spacing | 12.5KHz/25KHz |
| Working Voltage | DC 13.8V(±20%) |
| Frequency Stability | ±1ppm |
| Antenna Impedance | 50Ω |
| Dimension | 218(L)*330(W)*44(H)mm |
| Weight | 2.7KG |
Transmitter
| Power Output | VHF/UHF high power:25W ; VHF/UHF low power:10W |
| 4FSK Modulation | 7K60FXD (data only; 7K60FXE (data and voice) |
| FM Modulation | 12.5 kHz:8K50F3E;25 kHz:16KΦF3E; |
| Modulation Limitation | ±2.5kHz |
| FM Noise | -43dB |
| Spurious Emission | -36 dBm≤1GHz/-30 dBm≥1GHz |
| Adjacent Channel Selectivity | ≤-60dB |
| Frequency Response | +1/-3 dB |
| Audio Distortion | 0.03 |
| Digital Vocoder | AMBE+2™ |
Receiver
| Digital Sensitivity | 5% BER:0.25 uV |
| Analog Sensitive | 0.28 uV (12 dB SINAD) |
| Intermodulation | 65 dB |
| Adjacent Channel Selection | 60 dB |
| Spurious Suppression | 70 dB |
| FM Noise | -45dB |
| Frequency Response | +1/-3 dB |
| Rated Audio Power | 0dbm |
| Rated Audio Distortion | 3%(typical) |
| Conduction Radiation | -57dBm |
| GPS Precision | Horizontal Accuracy ≤110m (with good signal) |
| TTFF（first location）Cold Boot | ＜1 minute(with good signal) |
| TTFF（first location）Hot Boot | ＜10 seconds (with good signal) |
Environmental Specifications
| Operational Temperature | -25℃—+65℃ |
| Storage Temperature | -25℃—+70℃ |
| Humidity | MIL-STD-810C/D/E/F |
| Shock & Vibration | MIL-STD-810C/D/E/F |
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Technical support: Longcai Technology
