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Converter
Convert latitude and longitude coordinates to Maidenhead locator
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Tool usage guide
The Maidenhead Locator Encoder is a precise utility designed to convert geographic latitude and longitude coordinates into the Maidenhead Locator System (QTH locator) used extensively in amateur radio and global positioning.
Background
An operator is preparing for a VHF contest and needs to report their location to other stations.
Problem
The operator knows their GPS coordinates but needs the standard 6-character Maidenhead locator.
How to use
Input latitude 40.7128 and longitude -74.006, then select 3 pairs precision.
Outcome
The tool outputs 'FN20tq', which the operator uses for their contest exchange.
Background
A researcher is mapping signal coverage for a local repeater network.
Problem
Standard grid squares are too large; the researcher requires higher resolution to track signal drop-offs.
How to use
Input precise coordinates and select 4 pairs (Extended) precision.
Outcome
The tool generates an 8-character locator, providing the necessary resolution for detailed mapping.
It is a grid-based system used by radio amateurs to concisely describe a geographic location on Earth.
Higher precision adds more character pairs to the locator string, narrowing down the geographic area from a large field to a very small square.
Yes, use negative values for Southern latitudes and Western longitudes.
Yes, the interface is responsive and works on any device with a web browser.
2 pairs represent a large grid square, 3 pairs represent a subsquare, and 4 pairs provide high-resolution extended grid data.