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Automatic terminal information service, or ATIS, is a continuous broadcast of recorded aeronautical information in busier terminal areas. ATIS broadcasts contain essential information, such as current weather information , active runways , available approaches, and any other information required by the pilots, such as important NOTAMs .
Forward scatter sensors are more popular due to their lower price, smaller size and lower maintenance requirements. However, transmissometers are still used at some airports as they are more accurate at low visibilities and are fail-safe, i.e. in case of failure report visibility lower than actual.
The Automatic Transmitter Identification System (ATIS) is a communications protocol used for the station identification of television channels carried on satellite television. [ 1 ] ATIS is only required for analog television transmission and only via satellites or earth stations under United States jurisdiction.
ATIS use on the Trans-European Inland Waterway network and connecting waterways is mandated by the Regional Arrangement Concerning the Radiotelephone Service on Inland Waterways (RAINWAT) agreements, which also prohibit the use of Digital Selective Calling (DSC) where ATIS is required, except in some near-coastal areas, or in sea-like areas of ...
Non-air carrier aircraft: ceiling 1,000 feet and visibility 3 statute miles. Air carrier aircraft: ceiling 1,500 feet and visibility 5 statute miles, unless the landing runway is equipped with precision approach path indicator (PAPI) or visual approach slope indicator (VASI), in which case 1,000 feet ceiling and 3 statute miles visibility must ...
VFR / VMC visibility requirements in the US. In aviation, visual meteorological conditions (VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft.
Ceiling and Visibility OK [11] Visibility is at least 10 kilometres and no clouds below 5000 feet with no forecasted significant weather change such as precipitation. CAVU Ceiling and Visibility Unlimited CAW continuing airworthiness CB Cumulonimbus cloud: CBT computer-based training CCRs closed circuit mixed gas rebreathers CCRs
Currently the technical background section says the following: ATIS systems can be classified as Solid-State and PC-based. Solid-State ATIS systems are microcontroller-powered devices that incorporate speech synthesis and data processing in a single piece of proprietary equipment, while PC-ATIS systems are based on COTS-Hardware, like normal rack-mounted PCs with multiple high-performance ...