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Watch live aerial views of the Francis Scott Key Bridge in Baltimore, Maryland, after it collapsed in the early hours of Tuesday morning (26 March). A container ship crashed into the structure at ...
[46] [47] Merseyside Police caught a car thief with a UAV in 2010, but had to stop UAV operations a week later as the UAV was not licensed. Regulations introduced at the start of 2010 required any aerial surveillance by unmanned aircraft—no matter the size of the drone—to be licensed.
The length of a whip antenna is determined by the wavelength of the radio waves it is used with. Their length varies from compact electrically short antennas 1 / 10 wavelength long, up to 5 / 8 wavelength to improve directivity. The most common type is the quarter-wave whip, which is approximately 1 / 4 wavelength long.
An Aerial base station (ABS), also known as unmanned aerial vehicle (UAV)-mounted base station (BS), is a flying antenna system that works as a hub between the backhaul network and the access network.
Watch live aerial view of the California wildfires on Saturday (11 January) as the deadly blazes continue to rage. Officials continue to battle the stubborn blazes eating up more than 35,000 acres ...
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UAVs are used by a broad range of military forces, from Argentina [12] to the US and also by Islamic State of Iraq and the Levant (ISIS).. As of January 2014, the U.S. military operated 7,362 RQ-11B Ravens; 145 AeroVironment RQ-12A Wasps; 1,137 AeroVironment RQ-20A Pumas; 306 RQ-16 T-Hawk small UAS; 246 Predators and MQ-1C Grey Eagles; 126 MQ-9 Reapers; 491 RQ-7 Shadows and 33 RQ-4 Global Hawk ...