Isotron
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Isotron is the trade name for a shortwave antenna marketed by Bilal Co. for use as an amateur radio transmitting antenna for restricted spaces.[1] It is physically short as compared to a dipole antenna for a given frequency. The bandwidth of the Isotron is quite narrow as compared with a dipole antenna. This is most pronounced on the lower frequency bands.
Theory of operation
A Isotron antenna is electrically resonant by using only two components: a large coil in series with the capacitive plates. Its design is electrically the same of a 1/2 wave dipole.[2]
See also
References
- ^ Ralph Bilal, Bilal Company website, 2011, Florissant, Colorado
- ^ Page Module:Citation/CS1/styles.css has no content."- How Do the Isotrons Work? : Isotron Antennas, The HF Equation for Success". isotronantennas.com. Retrieved 2025-12-17.
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