Antenna Eagle. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / VHF antennas
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The antenna is a dual-band vertical antenna for frequencies 260-390 MHz. It got its name due to some similarity of its silhouette with the silhouette of a flying mountain eagle.
Eagle - antenna - half-wave vibrator for two bands, the jumper adjusts the matching for a 50 or 75 Ohm cable.
The design is simple and made from improvised materials. The most critical parts, such as the place where the vibrators are attached, must be protected from moisture.
The tuning consists in the gradual shortening of the vibrators to the desired frequency. For tuning, the author used the frequency response meter X-1-50.
The Eagle antenna after a year of work was replaced by the author with Double Eagle.
Author: Vasily Vasilenko, Yakutsk; Publication: inspector_v.chat.ru
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