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MADRE over-the-horizon radar at the NRL's Chesapeake Bay Detachment U.S. Navy Relocatable Over-the-Horizon Radar station. The most common type of OTH radar, OTH-B (backscatter), [3] uses skywave or "skip" propagation, in which shortwave radio waves are refracted off an ionized layer in the atmosphere, the ionosphere, and return to Earth some distance away.
The Over the Horizon boat is 24.75 feet (7.54 m) in length. Its fourth generation is manufactured by SAFE Boats International of Port Orchard, Washington. It is part of a 101-boat order worth up to $58.9 million. The hull is fabricated 5086 marine grade aluminum and it has a 22-inch-diameter (560 mm
The Jindalee Operational Radar Network (JORN) is an over-the-horizon radar (OHR) network operated by the Royal Australian Air Force (RAAF) that can monitor air and sea movements across 37,000 square kilometres (14,000 sq mi). [citation needed] It has a normal operating range of 1,000–3,000 kilometres (620–1,860 mi). [1]
This was later replaced by the AN/APS-143(V)-1 Airborne Sea Surveillance Radar. It can detect a person in a life raft up to 25 miles away. The aircraft has a fixed antenna array that receives and records telemetry from test and drone vehicles flying over the Gulf of Mexico. It can relay two UHF frequencies over the horizon to ground sites. [2]
Cobra Mist was the codename for an Anglo-American experimental over-the-horizon radar station at Orford Ness, England. [a] It was known technically as AN/FPS-95 and sometimes referred to as System 441a; a reference to the project as a whole. Cobra Mist was part of a small number of "Cobra" long-range surveillance radars operated by the United ...
By 1965, the development of over-the-horizon radar had superseded their function, and the radar picket ships were decommissioned and scrapped by the early 1970s. [ 3 ] The Contiguous Radar Coverage System's picket stations were about 400–500 miles (640–800 km) off each coast and provided an overlapping radar or electronic barrier against ...
Predel-E (in Russian: Предел-Э [1]) is a Russian military over-the-horizon radar system shown since 2017, [2] designed to detect ships in coastal areas. [3]It was developed by Concern Morinformsystem-Agat, with at least one variant designed by NPP Salyut. [3]
The boat can be used for over-the-horizon transportation, inserting lightly armed raiding parties or reconnaissance teams onto beaches, piers, offshore facilities and larger vessels. The CRRC can be inflated in minutes by foot pump, compressor or CO 2 tank and can be deployed from shore and a variety of vessels.