VHF Data Link

VHF Data Link

The VHF Data Link is used sending information between ground and aircraft. This area is standarised by ICAO.

Mode 1

ACARS

Mode 2

This mode is used for e.g. CPDLC

Mode 3

This mode have been abandoned.

Mode 4

Based on STDMA this mode is used for ADS-B thus providing situational awareness, etc.

External links

Mode 2:
* [http://www.eurocontrol.int/agdl/public/site_preferences/display_news_list.html MUAC]

Mode 4:
*
* [http://www.gpc.se/ GP&C Systems International AB]
* [http://www.freepatentsonline.com/5506587.html Patent 5506587: Position Indicating System ("STDMA") ]


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