Thus the simple reply is that UKAC appears to use only 6 figures regardless of the band used. For even more precise location mapping, two additional digits were proposed and ratified as an extended locator , making it altogether eight characters long, and dividing subsquares into even smaller ones. Radio Society of Great Britain. DM1CM 5 September Consequently, stations very near the edges of squares at denoted precision may have changed their locators when changing over to the use of WGS 
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More precise position reports are very rarely used. DM1CM 5 September DM1CM 6 September Maybe this can be used for the mapping project too.
EA6VQ - QTH locator map of Mallorca (JM19)
Just discovered that on https: Views Read Edit View history. This is what you get: The Maidenhead Locator System a.
The Maidenhead Locator Grid overlay has been an mzp part of sotamaps for at least five years - you just have to look for it. When I searched there were many, if not most of them, examples of 10figs in use.
On shortwave frequencies, positions are reported at square precision, and on VHF and UHF, subsquare precision is used. Retrieved 9 March I was going to refer to this possible need for 8-figure locators in my reply but can not locate it.
The contest reports only require the six character locator thank goodness! The extended locators are only used if you are using Airscout for finding aircraft scatter opportunities. The resulting Maidenhead subsquare locator string is hence composed of two letters, two digits, and two more letters. I use them every week for the UKAC contest. From Wikipedia, the free encyclopedia. Noticed it and edited just a minute after posting.
Hi Joe, The Maidenhead Locator Grid overlay has been an integral part of sotamaps for at least five years - you just have to look for it. According to the Wiki. Beyond this, no common definition exists to extend the system further into even smaller squares. These are encoded into a second pair of letters, often but not always presented in lowercase. Perl supports conversion between geographical coordinates and Maidenhead locators in module Ham:: Images never are the same the second time around.
Maidenhead Locator System
These zones are encoded with the letters "A" through "R". This is where the alternative name "grid squares" comes from.
The relatively new FT8 narrowband digital mode transmits Maidenhead locator square as part of standard messages, with the 4 character locator square being efficiently represented within 15 bits of the transmitted string. Radio Society of Great Britain. That is probably what I found and had forgotten; thanks, Andy. The fifth and subsequent pairs are not formally defined, but recycling the qthh and fourth pair algorithms is one possible definition … on VHF and UHF, subsquare precision is used.
M0JLA 6 September M0JLA 5 September Retrieved 10 September More locatod position reports are very rarely used. Retrieved 13 July
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