BF-TM8250
VHF/UHF DMR Base Radio
BF-TM8250 VHF/UHF DMR Base Radio
The DMR portable base radio BF-TM8250 is compatible with the SVT system, which provides versatile voice & data services for critical communications. It comes with a large size color display, which delivers good visibility even under strong light. The five programmable buttons allow the user to access any features he needs and thus greatly facilitate ease of use. Besides a full set of digital features, the integrated remote kill/stun/revive features bring unprecedented efficiency to teamwork and radio management.
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Highlights
Multiple Power Supply Modes, Flexible Deployment
This base radio has a portable handheld chassis for flexible deployment. Support external AC/DC power input, while DC current can be output to charge the battery. Support 220V/110V AC input mode switching, applicable to different overseas countries and regions.User-Friendly Design
Bright, Color LCD Display: The high contrast color display is easy to read in all kinds of lighting.Power-on Password: Nobody can mess with your radio.
Status Voice Prompt: This user-friendly function enables drivers to keep their eyes on the road.
Full DMR Conventional Features
Suitable for small properties, construction sites and motorcades. It easily and flexibly realizes efficient and rapid communication in the control area.Cost-effective with SFR Feature
Functioning as a single frequency repeater, it allocates one timeslot to receive while the other to transmit; and in DMO mode further extends radio coverage. One device serves two purposes.
Applications
·Automatic roaming (optional)
·GPS (optional)
·Recording (optional)
Voice Services
·DMR Virtual Trunking
·DMR Two Time-slot
Safety Service
·Emergency alarm
·Covert mode
·Lone worker
General Performance
·Frequency bands: VHF: 136-174 MHz; UHF: 350-400/400-470/450-520 MHz
·512 channels/32 zones
·Display: 2.0” TFT
·IP54 Protection
·25W output power, 3W speaker
Data Services
·Status/SDS messaging (in TMO & DMO)
·Groups data
·Static/Dynamic encryption DTMF + 5Tone analog signaling
Specifications
General
| Frequency Range | VHF:136-174MHz UHF:350-400 MHz/UHF:400-480 MHz |
| Channel Spacing | 12.5KHz/25KHz |
| Operating Voltage | DC 13.8V(±20%) |
| Frequency Stability | ±1.5ppm |
| Antenna Impedance | 50Ω |
| Dimensions | 175(L)*175(W)*63(H) mm |
| Weight | 1448g |
Transmitter
| RF Output Power | ≤50W |
| 4FSK Modulation | Only Data:7K60FXD, Data and Audio:7K60FXE |
| FM Modulation | 12.5 kHz:8K50F3E; 25 kHz:16KΦF3E; |
| Modulation Limiting | +/- 2.5kHz @ 12.5kHz; +/- 5kHz @ 25kHz |
| FM Noise | -40dB |
| Conducted Emission | -36 dBm≤1GHz/-30 dBm≥1GHz |
| Adjacent Channel Power | ≤-60dB |
| Audio Response | +1/-3 dB |
| Audio Distortion | 0.03 |
| Digital Voice coder Type | AMBE |
Receiver
| Digital Sensitivity | 5% BER:0.25 uV |
| Analog Sensitivity | 0.28 uV (12 dB SINAD) |
| Intermodulation | 65 dB |
| Adjacent Channel Selectivity | 60 dB |
| Spurious Response Rejection | 70 dB |
| FM Noise | -45 dB |
| Audio Response | +1/-3 dB |
| Rated Audio Output Power | 3W(loudspeaker) |
| Maximum Audio Output Power | 4.5W(loudspeaker) |
| Rated Audio Distortion | 3 %( Typical) |
| Conducted Spurious Emission | -57dBm |
| Positioning Accuracy | Horizontal Accuracy≤10m(with well signal) |
| TTFF (Time To First Fix) Cold Start | < 1minute(with well signal) |
| TTFF (Time To First Fix) Hot Start | < 10second(with well signal) |
Environmental Specifications
| Operating Temperature | -20℃—+60℃ |
| Storage Temperature | -20℃—+70℃ |
| Humidity | MIL-STD-810G |
| Vibration & Shock | MIL-STD-810G |
Power Supply Case Specification
| Operating Environment | -10℃—50℃ |
| Input Voltage | AC 220V±10%/ AC110V±10% |
| Output Voltage | 13.8V±0.2V |
| Maximum Current | 16A—17A |
| Output Overvoltage Protection | 16.5V±1.5V |
| Return Current | 2A—3A |
| Source Effect | ≤5×10-4 |
| Load Effect | ≤5×10-4 |
| Periodic and Random Offset | ≤15mVP-P |
| Rechargeable Battery Voltage | 13.8V |
| Charging Current | 1A±0.2A |
| Dimensions | 220(H)*151(W)*272(L)mm |
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Technical support: Longcai Technology
