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Old 07-29-2009, 06:48 AM
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Default Loran to GPS conversion

Anyone have any info on how to convert Loran coordinates to GPS coordinates????
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Old 07-29-2009, 07:49 AM
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Default Re: Loran to GPS conversion

Originally Posted by Unregistered View Post
Anyone have any info on how to convert Loran coordinates to GPS coordinates????
I've never done it. Googling, I found some useful discussion at this page, and further links:

The main problem is that conversion of Loran time differences to latitude/longitude is not terrible accurate, depends on ground conductivity, etc. Expect errors of several hundred yards. If the Loran receiver is still available, they suggest a "local correction" technique. Of course, if it is still available, you can just use it to go to the coordinates.

If you are taking Loran coordinates from a chart, simply use the latitude and longitude scales along the edges of the chart and use those in your GPS.
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