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A shortwave broadband antenna is a radio antenna that can be used for transmission (and reception) of any shortwave radio band from among the greater part of the shortwave radio spectrum, without requiring any band-by-band adjustment of the antenna. Generally speaking, there is no difficulty in building an adequate receiving antenna; the ...
Shortwave (HF radio) is used by transoceanic aircraft for communications with air-traffic control centers out of VHF radio range. Most countries with HF citizens'-band allocations use 40 or 80 channels between approximately 26.5 MHz and 27.9 MHz, in 10 kHz steps. Due to antenna-length requirements and the band's long-distance propagation ...
ALLISS antenna as viewed underneath. ALLISS is a somewhat rotatable antenna system for high power shortwave radio broadcasting in the 6 MHz to 26 MHz range. An ALLISS module is a self-contained shortwave relay station that is used for international broadcasting. [1]
20-meter band. The 20-meter or 14-MHz amateur radio band is a portion of the shortwave radio spectrum, comprising frequencies stretching from 14.000 MHz to 14.350 MHz. [ 1] The 20-meter band is widely considered among the best for long-distance communication ( DXing ), and is one of the most popular—and crowded—during contests. [ 2]
Listen Live. Website. www .wbcq .com. WBCQ is a shortwave radio station operating at Monticello, Maine, United States. The station is owned and operated by Allan Weiner, [ 1][ 3]: 828 who also owns and operates WXME AM 780 kHz and WBCQ-FM 94.7 MHz at the shortwave site. WBCQ began operation on September 8, 1998, on 7.415 MHz. [ 1]
15-meter band. Right a HB9XBG-vertical-Antenna for the 15m-Band. (Left a HB9XBG-Antenne for the 20m-Band) The 15-meter band (also called the 21-MHz band or 15 meters) is an amateur radio frequency band spanning the shortwave spectrum from 21 to 21.45 MHz. The band is suitable for amateur long-distance communications, and such use is permitted ...
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