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In the high Arctic, however, both the U.S. shortwave time stations and CHU become essentially unusable or unreliable. Canada has no longwave time signal transmitters. The American station WWVB is the only option for reliable time signals during geomagnetic storms in the Western Arctic, based on WWVB's published pattern maps.
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 in nearly all countries.
For transmissions in the shortwave range, there is little to be gained by raising the antenna more than a half to three quarters of a wavelength above ground level, and at lower frequencies and longer wavelengths, the height becomes infeasibly great (greater than 85 metres (279 ft)). Shortwave transmitters rarely use masts taller than about 100 ...
The ALLISS module is a fully rotatable antenna system for high power (typically 500 kW only) shortwave radio broadcasting—it essentially is a self contained shortwave relay station. Most of the world's shortwave relay stations do not use this technology, due to its cost (15m EUR per ALLISS module: Transmitter + Antenna + Automation equipment).
Pages in category "Shortwave radio stations in Canada" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. C.
Broadband shortwave base antennas traditionally fall into two main categories: Resistively loaded antennas which can be inexpensive and reasonably compact but inefficient at lower frequencies. Large elaborate and very expensive, non-loaded designs. (These can cost upward of $80,000 to purchase and install).
CFGB-FM is a radio station broadcasting on 89.5 MHz from Happy Valley-Goose Bay, Newfoundland and Labrador, Canada, and is the local Radio One station of the Canadian Broadcasting Corporation, serving as that network's primary outlet in Labrador. A shortwave relay, CKZN rebroadcasts CFGB's signal to remote areas of Labrador.
Before the HRS antenna became the default design for high power broadcasting in the 1950s, Sterba curtains were used to transmit shortwave broadcasts. Sterba curtains are modest-gain single-band curtain array antennas. They are named after Ernest J. Sterba, who developed a simple shortwave curtain array for Bell Labs in the 1930s. [1]