Talk:Proposed features/Radio navigation aids

From OpenStreetMap Wiki
Jump to: navigation, search

Nautical radio navigation aids

Some nautical radio navaids are already tagged in the seamark:type=* tagging scheme. A few aeronautical navaids also have significant meaning for maritime nautical navaids. --Skippern 13:26, 30 December 2012 (UTC)

LORAN is the only navigation aid used only by maritime traffic. Others (i.e. NDB) are widely used in aeronautics as well as marine nautics. Doma93 15:34, 30 December 2012 (UTC)
The tagging scheme already are in place, only as far as I know, few radio beacons are tagged until date, most are directional, circular and aeronautical beacons, as well as dgnss (wrongly named dgps) transmitters. Seamark:type and OpenSeaMap does not take account for different types of aeronautical instruments or radio beacons --Skippern 20:14, 30 December 2012 (UTC)

LORAN

LORAN stations are already part of the seamark:type=* tagging scheme. Currently not sure if any actually have been tagged. The seamark:type are needed for maritime nautical charts and routing aids, OpenSeaMap --Skippern 13:32, 30 December 2012 (UTC)

I haven't come across any rendered on openseamap. Of course, these are only used in marine traffic, but this proposition would cover all navigation aids including LORAN. Doma93 15:34, 30 December 2012 (UTC)
Maybe LORAN can be left for OpenSeaMap as there already are a tagging scheme for these stations under seamark:type --Skippern 20:14, 30 December 2012 (UTC)

So you propose using this tagging scheme? How about using radio_transponder=navaid, type=loran ? This is similar to what you're suggesting, but more consistent with my initial proposal. Also, is it neccessary to tag each node individually or will the LORAN chain relation suffice? Doma93 (talk) 15:32, 9 February 2013 (UTC)

1: The suggested tagging was just thinking alaud, and should not be considered set in stone. This is just something I knitted together based upon my own knowledge of LORAN, and some additional stuff I gathered from a few official LORAN sources. 2: Each LORAN station should be tagged individually as they can be used as circular direction finding beacons as well, though this individual tagging is useless in relations to LORAN. For any software to understand the LORAN chains the relation is necessary. Based on the information derived from the relation, one could make software calculating WGS84 positions from the time/phase difference measured in the equipment depending its GRI, signal delay, and antenna positions. The organization operating NELS (the North European Loran System) have all necessary information to build such relations available online, in what seems (confirmation necessary) to be Public Domain. - I will currently not partake in an import of LORAN data as there are no chains in the geographical area I currently map. --Skippern (talk) 20:48, 9 February 2013 (UTC)
I would avoid using type=loran as identical or close to identical relations could be created regarding other hyperbolic or directional radio beacons, such as (if still exists) DECCA, CONSOLE, CONSOLAN, etc. --Skippern (talk) 21:10, 9 February 2013 (UTC)