The triangle on 14/27/28 MHz
The total length of the triangle 21.3 meters.
Frequency range: 12.9-16.2 and 24.8-29.9 MHz.
Transformer 1:4 on the ring, is supplied antenna cable RK-50.
Such an antenna is convenient to use with a proprietary transceivers FT-840 (or other have no antenna tuner). Any tweaks to do. FT-840 within these sections provides 100W in the antenna!
Author: Igor, UA6HJQ, Pyatigorsk; Publication: N. Bolshakov, rf.atnn.ru