{
  "id": "maidenhead_locator",
  "name": "Maidenhead locator (QTH locator)",
  "status": "draft",
  "doc": "Grid square of the Maidenhead Locator System, used by radio amateurs to give a station position; the IARU adopted it in 1980. Pairs of characters give longitude then latitude: a field of two letters A to R (20 by 10 degrees), a square of two digits, a subsquare of two letters A to X and an extended square of two digits, giving two, four, six or eight characters. Field letters are upper case; subsquare letters are often written in lower case. A two-character locator looks like many other two-letter codes.",
  "categories": [
    {
      "id": "geo",
      "name": "Geographic identifiers"
    }
  ],
  "langs": [
    {
      "id": "common",
      "name": "Common to most languages"
    }
  ],
  "is_pii": false,
  "classification": "identifier",
  "regexp": "^[A-R]{2}(?:\\d{2}(?:[A-Xa-x]{2}(?:\\d{2})?)?)?$",
  "examples": [
    {
      "value": "FN31pr",
      "description": "Station W1AW of the ARRL in Newington, Connecticut (Wikipedia)"
    },
    {
      "value": "KN28LH",
      "description": "Six-character locator from Wikipedia"
    },
    {
      "value": "BL11BH16",
      "description": "Eight-character locator from Wikipedia"
    },
    {
      "value": "FN31",
      "description": "Four-character square"
    },
    {
      "value": "SN31",
      "valid": false,
      "description": "Field letters end at R"
    },
    {
      "value": "FN31PZ",
      "valid": false,
      "description": "Subsquare letters end at X"
    },
    {
      "value": "FN3",
      "valid": false,
      "description": "Odd number of characters"
    }
  ],
  "links": [
    {
      "type": "wikipedia",
      "url": "https://en.wikipedia.org/wiki/Maidenhead_Locator_System"
    }
  ],
  "type": "datatype",
  "translations": {}
}