Shortwave bands are frequency allocations for use within the shortwave radio spectrum (the upper medium frequency [MF] band and all of the high frequency [HF] band). Radio waves in these frequency ranges can be used for very long distance (transcontinental) communication because they can reflect off layers of charged particles in the ionosphere and return to Earth beyond the horizon, a mechanism called skywave or “skip” propagation. They are allocated by the ITU for radio services such as maritime communications, international shortwave broadcasting and worldwide amateur radio. The bands are conventionally named by their wavelength in metres, for example the ‘20 meter band’. Radio propagation and possible communication distances vary depending on the time of day, the season and the level of solar activity.
Shortwavebands are frequency allocations for use within the shortwave radio spectrum (the upper medium frequency [MF] band and all of the high frequency...
Shortwave radio is radio transmission using radio frequencies in the shortwavebands (SW). There is no official definition of the band range, but it always...
shortwavebands of many consumer radio receivers, and a number of magazines and listener clubs catering to the practice arose as a result. Shortwave listening...
A shortwave radio receiver is a radio receiver that can receive one or more shortwavebands, between 1.6 and 30 MHz. A shortwave radio receiver often receives...
regional, or worldwide path. The shortwavebands, or HF, are suitable for worldwide communication, and the VHF and UHF bands normally provide local or regional...
used in the shortwave frequency bands. As a result of skywave propagation, a signal from a distant AM broadcasting station, a shortwave station, or –...
specifically: Frequency band LTE frequency bands used for cellphone data Shortwavebands UMTS frequency bands used for cellphones BAND (software), a mobile...
List of international broadcasters. List of shortwave radio broadcasters ShortwaveShortwavebandsShortwave listening FTA receiver Medium wave – MW broadcasts...
demand. Shortwave broadcasting – AM broadcasting is also allowed in the shortwavebands by legacy radio stations. Since radio waves in these bands can travel...
while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwaveband of frequencies...
On the HF (also known as shortwave) amateur bands, DX stations are those in foreign countries. On the VHF/UHF amateur bands, DX stations can be within...
broadcasting locally on the FM broadcast band and throughout Canada and the United States on the AM and Shortwavebands. A particularly novel feature is a collapsible...
A broadcast band is a segment of the radio spectrum used for broadcasting. North American broadcast television frequencies AM broadcasting FM broadcasting...
near 27 MHz (or the 11-m wavelength) in the high frequency or shortwaveband. Citizens band is distinct from other personal radio service allocations such...
Shortwave broadcasting in the United States allows private ownership of commercial and non-commercial shortwave stations that are not relays of existing...
0-2-5-8-8. Problems playing this file? See media help. A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which...
Demonstration of this ability was still required for the privilege to use the shortwavebands. Until 2000, proficiency at the 20 WPM level was required to receive...
This is a List of shortwave radio broadcasters updated on Mar 21, 2024: International broadcasting List of American shortwave broadcasters List of European...
frequencies in the 41-meter, 31-meter, 25-meter, and 19-meter shortwavebands. Shortwave broadcasts were terminated in December 2010 from the lack of state...
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...
stations can be found throughout the world. Many stations broadcast on shortwavebands using AM technology that can be received over thousands of miles (especially...
wire dipole antennas are popular for use on the HF shortwavebands, both for transmitting and shortwave listening. They are usually constructed of two lengths...
to receive almost any radio frequency band, but most receive the AM broadcast band. A few receive shortwavebands, but strong signals are required. The...
designed to work over the bands currently used for analogue radio broadcasting including AM broadcasting—particularly shortwave—and FM broadcasting. DRM...
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