The antenna is a dual band vertical antenna for frequencies 260-390 MHz. It got its name thanks to some resemblance of its silhouette with the silhouette of a flying eagle mountain.
Eagle - antenna - half wave dipole at two ranges, the jumper is governed by the agreement under the cable 50 or 75 Ohms.
The design is simple and made from scrap materials. The most responsible part, such as the place of attachment of vibrators, you need to protect from moisture.
The setting is the gradual shortening of the vibrators to the desired frequency. To configure the author used the meter response X-1-50.
Eagle antenna after one year was replaced by the author at the Double Eagle.
Author: Vasily Vasilenko, Yakutsk; Publication: www.inspector_v.chat.ru, www.cxem.net