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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 first signal report format code may have been QJS. [citation needed]The U.S. Navy used R and K signals starting in 1929. [citation needed]The QSK code was one of the twelve Q Codes listed in the 1912 International Radiotelegraph Convention Regulations, but may have been in use earlier.
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 ...
The 9-centimeter band is a portion of the SHF radio spectrum internationally allocated to amateur radio and amateur satellite use. The amateur radio band, in ITU regions 1 and 2, is between 3.300 GHz and 3.500 GHz, and it is available only on a secondary basis. The amateur satellite band is between 3.400 GHz and 3.410 GHz, and it is only ...
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
Repeaters are found mainly in the VHF 6-meter (50–54 MHz), 2-meter (144–148 MHz), 1.25-meter band (1 1 ⁄ 4 meters) (220–225 MHz) and the UHF 70 centimeter (420–450 MHz) bands, but can be used on almost any frequency pair above 28 MHz.
Entire amateur radio band 15 m: H 21.000 – 21.450 MHz: Primary Entire amateur radio band 12 m: 24.890 – 24.990 MHz: Primary Entire amateur radio band 10 m: A 28.000 – 29.700 MHz: 29.300 – 29.510 MHz: Primary Entire amateur radio band VHF: 2 m: V 144.000 – 146.000 MHz: 145.800 – 146.000 MHz: Primary UHF: 70 cm: U 435.000 – 438.000 ...
The two capital letters mark an area, or square, of two degrees longitude by one degree latitude, like the squares of Maidenhead Locator. The bottom left corner of square AA was at 40.0° N - 0.0° E. [2] Therefore, square "AA" of the QRA locator corresponds to square "JN00" of Maidenhead locator. Maidenhead locator square "IO91", which covers ...