System area code: Difference between revisions
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In air traffic control, the '''System Area Code''' (SAC) is part of a unique identifier assigned to each system which uses the [[ASTERIX (ATC standard)|ASTERIX]] format. The [[Eurocontrol]] SuRveillance Data Exchange Task Force (RDE-TF) maintains these identifiers internationally and assigns them to regions such as countries, though sometimes more than one code is assigned within the same country, for example to distinguish between civilian and military uses. |
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The SAC is allocated to a specific [[region]], e.g. a [[country]]. |
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Multiple allocations within a country are possible, for instance to distinguish between different data suppliers, such as civil/military. |
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Due to the limited number of available SACs the central allocation is needed as multiple allocations must be handled with care. |
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Within each country, it is the responsibility of the relevant [[Air Navigation Service Provider|ANSP]] to allocate a System Identification Code (SIC); up to 256 of them for each SAC. |
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It identifies each individual system ([[surveillance]] [[sensor]], surveillance data processing system, etc) within the respective area defined by the SAC. |
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For each SAC, up to 256 individual SICs may be assigned. |
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In the [[ASTERIX (ATC standard)|Asterix]] [[protocol]] the SAC/SIC identifies the actual sensor from where the [[radar]] information is sent. |
In the [[ASTERIX (ATC standard)|Asterix]] [[protocol]] the SAC/SIC identifies the actual sensor from where the [[radar]] information is sent. |
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Revision as of 17:47, 22 October 2008
In air traffic control, the System Area Code (SAC) is part of a unique identifier assigned to each system which uses the ASTERIX format. The Eurocontrol SuRveillance Data Exchange Task Force (RDE-TF) maintains these identifiers internationally and assigns them to regions such as countries, though sometimes more than one code is assigned within the same country, for example to distinguish between civilian and military uses.
Within each country, it is the responsibility of the relevant ANSP to allocate a System Identification Code (SIC); up to 256 of them for each SAC.
In the Asterix protocol the SAC/SIC identifies the actual sensor from where the radar information is sent. The information being e.g. plot & track.