Ham Radio - Ground spike antenna. Using the earth to receive LF and VLF. Post #1234.
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One of the most fascinating portions of the electromagnetic spectrum lies in the area below 300 kHz--the realm of Low Frequency (LF) and Very Low Frequency (VLF). The "basement" of the RF spectrum contains all kinds of interesting signals, from military communications (for submarines, mostly) and time signals to atmospheric noise and the sounds of the Earth itself. Now that radio amateurs are allowed to explore some of this spectrum (630 meters and 2200 meters), you may want to build an antenna to familiarize yourself with the phenomena present way below the standard broadcast band.
In this video, Kevin Loughin shows you an antenna called a "ground spike" that can be used to monitor these very low frequencies. The antenna is simple, inexpensive, and fun to use.
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Aloha es 73 de Russ (KH6JRM)
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Aloha es 73 de Russ (KH6JRM).