NASA NTRS ยท 19700000016
Economical weatherproof helical antenna
Abstract
Semi-rigid coaxial cable forms the helical element of antennas. Antennas are inexpensive, corrosion resistant, require minimum maintenance, and can be easily transported and assembled.
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Cribb, H. E.. 1970-07-01. Economical weatherproof helical antenna. https://ntrs.nasa.gov/citations/19700000016
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