Ionosphere

    53

    The region of the earth’s upper atmosphere containing free electrons and ions produced by ionization of the constituents of the atmosphere by solar ultraviolet radiation at very short wavelengths (<100 nm) and energetic precipitating particles. The ionosphere influences radiowave propagation of frequencies less than about 300 MHz.

    Categories: Propagation
    « Back to Glossary Index
    Previous articleSolar Cycle
    Next articleMaximum Usable Frequency [MUF]
    The DXZone merges amateur radio and Internet, since early internet days. Established in 1996 as a radio-related-mailinglist, has registered its domain name in 1998. Main goal is to review and promote ham-radio web sites, classifying them in categories. The DXZone is managed by ham radio operators with ham radio operators in mind.