A form of radio wave propagation which occurs when the MUF maximum usable frequency rises above the 30MHz. Radio Waves are reflected towards the earth’s surface at a larger detectable continuum of angles than usual. A detectable fraction of a radio signal is now reflected at a very sharp angle back into region just surrounding the transmitting station but usually beyond the range of ground wave communications. Backscatter signals are generally weaker than the normal reflected radio waves and during periods of low solar flux while during periods of very high solar flux, even small stations may produce readable signals. Backscatter signals are generally very stable and rarely influenced by QSB. Backscatter signals are easily distinguishable as they resemble a “hollow” or “barrel” sound.

    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.