Search results
Results from the WOW.Com Content Network
The QRA locator, also called QTH locator in some publications, is an obsolete geographic coordinate system used by amateur radio operators in Europe before the introduction of the Maidenhead Locator System. As a radio transmitter or receiver location system the QRA locator is considered defunct, but may be found in many older documents.
The QRA locator system was limited to describing European coordinates, and by the mid-1970s there was growing need for a global locator system. [3] By the time of their April 1980 meeting, in Maidenhead, England, the VHF Working Group had received twenty different proposals to replace the QRA locator grid. That devised by John Morris (G4ANB ...
Quick Reaction Alert (QRA) is state of readiness and modus operandi of air defence maintained at all hours of the day by NATO air forces. The United States usually refers to Quick Reaction Alert as 'Airspace Control Alert'. Some non-NATO countries maintain a QRA, [1] either full-time or part-time. [2] [3]
Rand Airport (IATA airport code: QRA), South Africa; QRA locator, an obsolete geographic coordinate system; Kra (letter), the letter used in place of Q in some Inuit orthographies, also spelled Qra; Radio Q code for "What is the name of your vessel (or station)?" or "The name of my vessel (or station) is ____."
The Open Location Code (OLC) is a geocode based on a system of regular grids for identifying an area anywhere on the Earth. [1] It was developed at Google's Zürich engineering office, [2] and released late October 2014. [3] Location codes created by the OLC system are referred to as "plus codes".
The QRA–QUZ code range includes phrases applicable to all services and is allocated to the International Telecommunication Union. [8] QVA–QZZ are not allocated. [ 9 ] Many codes have no immediate applicability outside one individual service, such as maritime operation (many QO or QU series codes) or radioteletype operation (the QJ series).
1234 5678 (numerical location; easting is 1234 and northing is 5678, in this case specifying a location with 10 m resolution) An MGRS grid reference is a point reference system. When the term 'grid square' is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the ...
Address geocoding, or simply geocoding, is the process of taking a text-based description of a location, such as an address or the name of a place, and returning geographic coordinates, frequently latitude/longitude pair, to identify a location on the Earth's surface. [1]