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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.
For the latest Amateur Radio news and information, please visit these websites:
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).
Other sites of interest:
Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
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Opinions expressed in this blog are mine unless otherwise stated.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM)