20-meter band

Amateur radio frequency band thumb|A HB9XBG-vertical-Antenna for the 20m-Band on Simplon Pass with view to Mount Galehorn. 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.http://www.arrl.org/FandES/field/regulations/allocate.html Frequency Allocations Arrl.org 2012-03-05 2012-10-29 live https://web.archive.org/web/20100314191057/http://www.arrl.org/FandES/field/regulations/allocate.html 2010-03-14 dmy-all 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.Picking a band The ARRL Operating Manual 8th Ford, Steve 115 American Radio Relay League Newington, CT 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 international operation even in unfavorable propagation conditions.The ARRL Handbook For Radio Communications 82nd 2005 American Radio Relay League Newington, CT 0-87259-928-0 20.4 Propagation of RF Signals History January 2011 no The Third National Radio Conference was responsible for opening up the 20-meter band to amateur radio operators in the UShttps://babel.hathitrust.org/cgi/pt?id=pst.000015526212;view=1up;seq=17 Frequency or wave band allocations Recommendations for Regulation of Radio Adopted by the Third National Radio Conference October 6–10, 1924 15 Govt. Print. Off. on October 10, 1924. The band was allocated on a worldwide basis by the International Radiotelegraph Conferencehttp://www.itu.int/dms_pub/itu-s/oth/02/01/S02010000144002PDFE.pdf INTERNATIONAL RADIOTELEGRAPH CONVENTION AND GENERAL AND SUPPLEMENTARY REGULATIONS. 25 November 1927 INTERNATIONAL RADIOTELEGRAPH CONVENTION OF WASHINGTON, 1927 2014-07-06 dmy-all dead https://web.archive.org/web/20140308211326/http://www.itu.int/dms_pub/itu-s/oth/02/01/S02010000144002PDFE.pdf 2014-03-08 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.http://www.itu.int/dms_pub/itu-s/oth/02/01/S020100002B4002PDFE.pdf RADIO REGULATIONS ANNEXED TO THE INTERNATIONAL TELECOMMUNICATION CONVENTION (ATLANTIC CITY, 1947) 2014-07-06 dead https://web.archive.org/web/20140715055049/http://www.itu.int/dms_pub/itu-s/oth/02/01/S020100002B4002PDFE.pdf 2014-07-15 dmy-all Band plans IARU Region 1 Europe, Africa, Middle East and Northern AsiaIARU Regions http://www.iaru.org/regions.html www.iaru.org International Amateur Radio Union (IARU) 6 January 2014 dead https://web.archive.org/web/20131230025948/http://www.iaru.org/regions.html 30 December 2013 20 meters 14000–14070 14070–14099 14099–14101 14101–14350 IARU Region 1 IARU Region 2 The Americas 20 meters 14000–14070 14070–14099 14099–14101 14101–14350 IARU Region 2 IARU Region 3 Asia-Pacific 20 meters 14000–14070 14070–14099 14099–14101 14101–14112 14112–14350 IARU Region 3 United States Effective 12:01 a.m. EST, February 23, 2007 20 meters 14000–14350 United States 14000–14025 14025–14150 14150–14175 14175–14225 14225–14350 General Advanced Extra Canada Canadahttp://www.rac.ca/en/rac/services/bandplans/hf/hfplan-20080711.pdf RAC MF/HF Band Plan rac.ca 2008-07-08 dead https://web.archive.org/web/20101127081357/http://rac.ca/en/rac/services/bandplans/hf/hfplan-20080711.pdf 2010-11-27 dmy-all 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 class 14.000–14.070 14.070–14.095 14.095–14.0995 14.0995–14.1005 14.1005–14.112 14.112–14.350 Basic(+), Advanced Japan Changed on September 25, 2023. License class 14000–14070 14070–14100 14100–14350 1st and 2ndnarrow-band All modes Key = CW only = CW, narrow band digital (<= 500 Hz) = CW, narrow band digital (<= 500 Hz), wide band digital = CW, RTTY and data (US: < 1 kHz Bandwidth) = Beacons = CW, phone = CW, narrow band digital (<= 500 Hz), phone = CW, phone and image References Category:Amateur radio bands