The 20-meter or 14-MHzamateur radio band is a portion of the shortwave radio spectrum, comprising frequencies stretching from 14.000 MHz to 14.350 MHz. 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. Several factors contribute to this, including the band's large size, the relatively small size of antennas tuned to it (especially as compared to antennas for the 40-meter band or the 80-meter band) and its good potential for daytime DX operation even in unfavorable propagation conditions.
The 20-meter band was first made available to amateurs in the United States by the Third National Radio Conference on October 10, 1924. The band was allocated on a worldwide basis by the International Radiotelegraph Conference in Washington, D.C., on October 4, 1927. Its frequency allocation was then 14000–14400 kHz. The allocation was reduced to 14000–14350 kHz. by the International Radio Conference of Atlantic City 1947.
Canada is part of region 2 and as such is subject to the IARU band plan. 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.
Some administrations have authorized spectrum for amateur use in this region.
1 This is not mentioned in the ITU's Table of Frequency Allocations, but individual administrations may make allocations under Article 4.4 of the ITU Radio Regulations. See the appropriate Wiki page for further information. 2 HF allocation created at the 1979 World Administrative Radio Conference. These are commonly called the "WARC bands". 3 This includes a currently active footnote allocation mentioned in the ITU's Table of Frequency Allocations.