Archive: Software

Some software for converting positions to and from Loran coordinates was produced and documented
by WGA/ILA members over the years. We've preserved some of these programs,
along with POSAID2, from the U.S. Coast Guard and links to a commercial routine from Andren Software.

Click on the links below to view the files. Use your browser's "back" button to return here.

Use the PDF "find" function to narrow your search within one of the files.
Download/Save and extract .ZIP files.

Manuals and Notes Program Files
GP to TD Notes PDF GP to TD Zip
TD2LL Guide PDF TD2ll Zip
SeaMark software (2016)

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