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"Map grid square". levinecentral.com. [Maidenhead] grid square for any location or amateur radio call sign "Generate a KML file that outlines a grid position". w8an.net. "Maidenhead locator". dev.unclassified.de. C# class to convert between geographic coordinates and Maidenhead locators, including distance calculation
The site is built and maintained by a small group of radio amateurs with interests in SOTA, [1] hill walking and mountaineering, mapping and open source programming. They also maintain [ 2 ] a similar site ( iotamaps - Islands On The Air [usurped] ) for the Islands on the air (IOTA) award scheme.
The term Grid square has multiple uses Maidenhead Locator System, a Geocode system used by radio amateurs worldwide; A 1 km 2 square defined by a National grid reference system, see Projected coordinate system#Grid reference encodings; A neighbourhood in Milton Keynes, England, see Milton Keynes#Grid roads and grid squares
An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...
Example of a radio map estimate using STORM, a transformer-based radio map estimator. Signal strength maps quantify signal strength at each location. Formally, a signal strength map can be seen as a function γ ( r ) {\displaystyle \gamma (\mathbf {r} )} that provides a signal strength metric for each location r {\displaystyle \mathbf {r} } .
The Amateur radio R-S-T system signal report format currently in use was first developed in 1934. [citation needed] As early as 1943, the U.S and UK military published the first guidance that included the modern "Weak but readable", "Strong but distorted", and "Loud and clear" phrases. [citation needed]
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.
Entire amateur radio band 4 mm: 76.000 – 77.500 GHz: Secondary 77.500 – 78.000 GHz: Primary 78.000 – 81.000 GHz: Secondary 2 mm: 134.000 – 136.000 GHz: Primary Entire amateur radio band 136.000 – 141.000 GHz: Secondary 1 mm: 241.000 – 248.000 GHz: Secondary Entire amateur radio band 248.000 – 250.000 GHz: Primary