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Grid Square to Grid Square Distances Jul 19th, 01:31 4 291 on 19/7/20

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Topic Author Posted On
Grid Square to Grid Square Distances NZ3O on 19/7/20
This has the precise code I needed. Seems accurate. I am now designing the Grid Square conversion to add to it.

Thank you. 73, Byron

https://www.plumislandmedia.net/mysql/stored-function-haversine-distance-computation/
Grid Square to Grid Square Distances NZ3O on 19/7/20
Thank you. The QST Article is helpful for understanding how to map Grid Squares to Longitude and Latitude and vice-versa, but the BD_2004 code requires a lot of interpretation.

Is there no specification of how to calculate the distance? I do understand we cannot just do a straight line between two points.

I appreciate your support.
Grid Square to Grid Square Distances NZ3O on 19/7/20
On the Contest Rules, it talks about a public "standard algorithm" for calculating the distance between two 6-character Grid Squares, but I do not find that anywhere on the site.

Has the ARRL published the Grid Square distance calculation?

73, Byron

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