- 20-meter band
The 20 meter
amateur radio band is a portion of theshortwave radio spectrum, comprising frequencies stretching from 14.000MHz to 14.350 MHz. [US Amateur Radio Frequency Allocations. http://www.arrl.org/FandES/field/regulations/allocate.html accessed 12 May 2008.] The 20 meter band was first made available to amateurs in the United States by the Third National Radio Conference [Recommendations for Regulation of Radio Adopted by the Third National Radio Conference. http://earlyradiohistory.us/1924conf.htm Accessed 21 May 2008.] on October 10th, 1924.The 20 meter band is widely considered among the best for
DXing , and is one of the most popular (and crowded) during contests. [Picking a band. "The ARRL Operating Manual", 8th Edition (Steve Ford, Ed.):1-15.] 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 40 or80 meters ) and its good potential for daytime DX operation even in unfavorable propagation conditions.ITU Region 1
For ITU region 1,
Radio Society of Great Britain 's [http://www.rsgb.org/spectrumforum/bandplans/RSGB%20Band%20Plan%20master.htm band plan] will be more definitive (click on the buttons at the bottom of the page).The 20 Meter IARU Region 1 Band Plan
The following chart shows the voluntary bandplan used by amateurs in Region 1. Unlike the USA slots for the various transmission modes are not set by the amateur's licence but most users do follow these guidelines.
Key
References
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