What can we expect from the STOCK ECO 3el 27 MHZ YAGI ?
An analysis of the antenna using EZNEC PRO4 with NEC 4 NEC5 engines.
(The ECO 3el yagi)
The sizes we used are from manual :
(above the EZNEC input file)
In order to keep it fair to all others:
We did not implement losses due to material or matchingsystems.
Therefor peak gain should be fraction less if measured in the real world.
NO material or matching losses were inserted !
Above the freespace azimuth plot
Above the freespace elevation plot
Above the SWR diagram (a gamma-match was inserted to obtain a good SWR)
Above the gain front to back and front to rear versus frequency response.