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20-meter band

Amateur radio frequency band

Amateur radio frequency 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. 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.

History

The Third National Radio Conference was responsible for opening up the 20-meter band to amateur radio operators in the US 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 14–14.4 MHz. The allocation was reduced to 14–14.35 MHz by the International Radio Conference of Atlantic City, New Jersey 1947.

Band plans

IARU Region 1

Europe, Africa, Middle East and Northern Asia

20 meters14000–1407014070–1409914099–1410114101–14350
IARU Region 1

IARU Region 2

The Americas

20 meters14000–1407014070–1409914099–1410114101–14350
IARU Region 2

IARU Region 3

Asia-Pacific

20 meters14000–1407014070–1409914099–1410114101–1411214112–14350
IARU Region 3

United States

Effective 12:01 a.m. EST, February 23, 2007

20 meters14000–1435014000–1402514025–1415014150–1417514175–1422514225–14350
United States
General
Advanced
Extra

Canada

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.

License class14.000–14.07014.070–14.09514.095–14.099514.0995–14.100514.1005–14.11214.112–14.350
Basic(+), Advanced

Japan

Changed on September 25, 2023.

License class14000–1407014070–1410014100–14350
1st and 2ndnarrow-band All modes

Key

CW]], phone and image

References

References

  1. (2012-03-05). "Frequency Allocations". Arrl.org.
  2. "The ARRL Operating Manual". [[American Radio Relay League]].
  3. (2005). "The ARRL Handbook For Radio Communications". [[American Radio Relay League]].
  4. (October 6–10, 1924). "Recommendations for Regulation of Radio Adopted by the Third National Radio Conference". Govt. Print. Off..
  5. (25 November 1927). "INTERNATIONAL RADIOTELEGRAPH CONVENTION AND GENERAL AND SUPPLEMENTARY REGULATIONS.". INTERNATIONAL RADIOTELEGRAPH CONVENTION OF WASHINGTON, 1927.
  6. "RADIO REGULATIONS ANNEXED TO THE INTERNATIONAL TELECOMMUNICATION CONVENTION (ATLANTIC CITY, 1947)".
  7. "IARU Regions". International Amateur Radio Union (IARU).
  8. "RAC MF/HF Band Plan".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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