NDRS Technology
The National Distress and Response System (NDRS) was established more than 30 years ago as a VHF-FM-based radio communication system that has a range of up to 20 nautical miles (37 km) along most of the U.S. shoreline. While this system has served the Coast Guard well over the years, it consists of out-of-date and non-standard equipment with many limitations. These include:
- No direction finding capability.
- Numerous geographic communication coverage gaps.
- Limited interoperability with other emergency response services.
- Single-channel radio operation, which prohibits the ability to receive multiple radio calls.
Read more about this topic: Rescue 21
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