In emergency situations where there is no network coverage, Ad Hoc portable networks are very helpful. As a member of BF-TR925 family, BelFone TR925R(MC-N) is a manpack and vehicle mounted DMR Ad Hoc repeater designed for scenarios where no radio coverage available to realize signal multi-hopping and last mile communication. With features of fast deployment, seamless communication and flexible networking, it works as a radio, repeater and mesh node, It is an ideal solution for search and rescue teams, personnel working at isolated utility sites, first responders during disaster and rescue operations or for those working underground or in tunnels.
Multiple Working Modes, Highly Integrated
- DMR Ad Hoc repeater
- DMR single frequency repeater
- DMR base radio (DMR Tier I, II)
- Analog base radio
- PSTN gateway (working with BF-TC981)
Versatile Connectivity
- 4G wireless communications link
- Satellite communication link
- Narrowband communication link
- IP connectivity for multi-sites connection
Ease of Installation
- Manpack mounted
- Modular hardware design
- Vehicular/Desktop mounted
Flexible and Reliable Networking, Fast Deployment
- Multiple networking deployment: chain, tree, star, connected network, etc.; thus, users can choose different networking based on actual environment.
- Highly reliable network: Based on mobile wireless ad hoc network, the device is capable of creating and joining networks simply by power-on. Signals will switch to another node automatically to ensure link continuity, when one node within a network disconnects or malfunctions.
Features and Details
Ad Hoc networking on a 25KHz bandwidth frequency, up to 32 hops, compatible with regular DMR radios.
IP67 water and dust protection.
MIL STD 810F/G standard ruggedness.
AES256/ARC4 digital encryption.
Self-adaptive power for different installations.
- Manpack with battery mode (with manpack kit, output power 3-15W).
- Desktop/vehicular mode (with AC/DC mounting kit, output power 5-25W).
IP connectivity for multi-sites connection (with specialized Ethernet cable).
Full duplex communication as DMR base radio (with remote control microphone).
Built-in GPS, convenient position tracking(optional).
Self-destructing function to wipe out data in case of information leakage.
Power-on password to ensure information security.
General |
Frequency Range | VHF:136-174MHz; UHF:350-400MHz/ 400-480MHz/ 450-520MHz |
Channel Capacity | 3776 |
Channel Spacing | 12.5KHz |
Antenna Impedance | 50Ω |
Operating Voltage | Vehicular: DC13.8V(± 15%), negative ground; Battery: 10.8-12.6V |
Operating Current | < 6A |
Dimensions | 302mm(L)*218mm(W)*76mm(H)(Without antenna and antenna base) |
Weight | ≤5kg (battery 2kg included) |
Transmitter |
RF Power (100% Duty Circle) | Vehicular: 5-25W(continuously); Manpack: 3-15W(continuously) |
Frequency Stability | ≤0.5ppm |
4FSK Modulation | 12.5KHz(Data Only):7K60FXD; 12.5KHz(Data & Voice):7K60FXW |
Adjacent Channel Power | ≤60dB |
Spurious Radiation | -36dBm<1ghz; -30dbm="">1GHz |
Vocoder | AMBE |
Receiver |
Sensitivity | 3%BER≤0.35µV |
Frequency Stability | ≤0.5ppm |
Adjacent Selectivity | ≥60dB |
Intermodulation Rejection Ratio | ≥65dB |
Spurious Suppression | ≥70dB |
Blocking | ≥90dB |
Rated Audio Output Power | No speaker, can be connected to microphone |
Environmental |
Working Environment | -30ºC~+70ºC |
Storage Temperature | -40ºC~+85ºC |
Water & Dust Proof | IP67 |
Humidity Proof | MIL-STD-810G Standard |
Shock & Vibration | MIL-STD-810G Standard |