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The 10-meter band is a portion of the shortwave radio spectrum internationally allocated to amateur radio and amateur satellite use on a primary basis. The band consists of frequencies stretching from 28.000 to 29.700 MHz. [1]
John Daniel Kraus (June 28, 1910 – July 18, 2004) was an American physicist and electrical engineer known for his contributions to electromagnetics, radio astronomy, and antenna theory. His inventions included the helical antenna, the corner reflector antenna, and several other types of antennas. He designed the Big Ear radio telescope at ...
Bob Heil. Robert Gene Heil (October 5, 1940 – February 28, 2024) was an American sound and radio engineer who created the template for modern rock sound systems. He founded the company Heil Sound in 1966 [1] and built touring sound systems for bands such as The Grateful Dead and The Who. [2] He was also a musician, and played the Wurlizter ...
Radio amateurs can build the Hexbeam as a multi-band antenna to cover different frequency ranges. Popular combinations cover 20m, 15m and 10m (3 band) and 20m, 17m, 15m, 12m and 10m (5-band) ham radio bands. Hexbeams can also be built for the 40m and 30m bands. The antenna elements for the lowest frequency band are located at the exterior of ...
Quarter-wave whip antenna on an FM radio for 88–108 MHz. Rubber ducky antenna on 446 MHz UHF walkie-talkie with rubber cover removed. VHF ground plane antenna. Mast radiator antenna of medium wave AM radio station, Germany. 'T' antenna of amateur radio station, 80 ft high, used at 1.5 MHz.
The Industrial/Business Radio Pool of the Private Land Mobile Radio Services has several channels just above the Citizen's Band, at 27.430, 27.450, 27.470, 27.490, 27.510, and 27.530 MHz. [15] The federal government has the frequencies from 27.540 up to 28.000. Many civilian agencies use, or used to use, the frequencies 27.575 and 27.585 for ...