All allocations are subject to variation by country. Others have declined to regulate frequencies above 300 GHz.
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Some administrations have authorized spectrum for amateur use in this region = CW, narrow band digital ( <= 500 Hz ), wide band digital Radio Amateurs of Canada offers the bandplan below as a recommendation for use by radio amateurs in that country but it does not have the force of law and should only be considered a suggestion or guideline. = CW only (US Novice/Technician: 200 W PEP maximum TPO)Ĭanada is part of region 2 and as such is subject to the IARU band plan. = CW, RTTY and data (US: < 1 kHz bandwidth) Frequency allocation United States Megahertz
![15 meter to feet 15 meter to feet](https://www.architectureartdesigns.com/wp-content/uploads/2015/08/1416.jpg)
The 15-meter band opened to amateurs for CW operation only in the United States on May 1, 1952, and telephony operations were authorized above 21.25 MHz on March 28, 1953. The 15-meter band was designated by the 1947 International Radio Conference of Atlantic City in part to compensate for the loss of the 160-meter band to amateurs by the introduction of LORAN during World War II. The 15-meter wavelength is harmonically related to that of the 40-meter band, so it is often possible to use an antenna designed for 40 meters. īecause 15-meter waves propagate primarily via reflection off of the F-2 layer of the ionosphere, the band is most useful for intercontinental communication during daylight hours, especially in years close to solar maxima, but the band permits long-distance without high-power station equipment outside such ideal windows. The band is suitable for amateur long-distance communications, and such use is permitted in nearly all countries.
![15 meter to feet 15 meter to feet](https://i.ytimg.com/vi/Z7ZLMQz-X-Q/hqdefault.jpg)
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. ( December 2010) ( Learn how and when to remove this template message) You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject.