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An air gapped network (right) with no connection to a nearby internet-connected network (left) An air gap, air wall, air gapping [1] or disconnected network is a network security measure employed on one or more computers to ensure that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network. [2]
Engineering and Installation, better known as E&I, is a functionary of the United States Air Force that provides the engineering and installation of telecommunications into permanent facilities. This includes removal and relocation of old or outdated ground communication-electronics systems, and to provide for emergency and programmed, mobile ...
Airlink was formed in 1992 by business partners Rodger Foster and Barrie Webb, following the purchase of the liquidated Link Airways business, [6] which had incorporated a range of other airlines: Midlands Aviation (founded in 1967), Lowveld Aviation Services, Magnum Airlines, Border Air and Citi Air. The new airline was named Airlink.
An over-the-air update (or OTA update), also known as over-the-air programming (or OTA programming), [1] is an update to an embedded system that is delivered through a wireless network, such as Wi-Fi or a cellular network. [2] [3] [4] These embedded systems include mobile phones, tablets, set-top boxes, cars and telecommunications equipment.
Air Link Pty Ltd [1] is an airline [2] and air charter company based in Dubbo, New South Wales, Australia. It operates air charter services and recommenced regular passenger services in November 2019. [ 3 ]
The VHF Data Link or VHF Digital Link (VDL) is a means of sending information between aircraft and ground stations (and in the case of VDL Mode 4, other aircraft). Aeronautical VHF data links use the band 117.975–137 MHz assigned by the International Telecommunication Union to Aeronautical mobile (R) service .
Link 16 is a TDMA-based secure, jam-resistant, high-speed digital data link that operates in the radio frequency band 960–1,215 MHz, allocated in line with the International Telecommunication Union (ITU) Radio regulations to the aeronautical radionavigation service and to the radionavigation satellite service.
The data link layer in an air interface is often divided farther than the simple Media access control (MAC) and Logical link control (LLC) sublayers found in other OSI terminology. While the MAC sublayer is generally unmodified, the LLC sublayer is subdivided into two or more additional sublayers depending on the standard.