Extending radio frequency communication coverage

Unobtrusive router and relay system configured to communicate with additional RF systems


While the mobile network providers tout near 100 percent coverage, a need exists for extending coverage of communications systems in remote areas like national parks. Any communication system extended into such areas should blend in with the natural environment, be powered remotely, and be reliable. They should be designed to either be permanent or for short-term use such as in the case of an emergency or natural disaster.

The unobtrusive router/relay system has been patented by the U.S. Navy. (Illustration by Troy Carter/TechLink)

Noting the above, Navy scientists and engineers have developed an unobtrusive router and relay system (URRS) configured to communicate with RF systems such as a mobile phone carried or used by an individual or team; other URRS systems (which each include a second RF receiver and transmitter); and a fixed cell tower or control center. The system can also communicate with an unmanned airborne vehicle (UAV) or remotely operated vehicle (ROV) greatly extending their operating range. Locations are identified for a specific location or number of locations along a transit path where the RF communication’s hub lacks transmit and receive coverage with the cell system. The URRSs are configured to route and relay the first RF system’s signals to the RF communications’ hub directly or through one or more other URRSs. URRSs are designed to blend with their surroundings such as being formed to appear as a rock or a fallen tree.

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