Antenna bearings at EA5DY/4 Surrounding landscape is key to achieve adecuate takeoff angles of radiation for DX. These are horizon views from just below the yagis at the tower. - Effect of the surrounding terrain on 20m Adding a second 20m yagi at the middle of the tower would not bring much advantages as most elevation statistics angles are reasonably well covered. The extra 2 dB when phasing the two yagis are probably not worth the job. Or do they? Effect of the surrounding terrain on 15m HFTA analysis showed that the 15m yagi placed 27 meters high is excellent for DX (low angles) but has a deep null at 15º. Adding and phasing a second yagi at 14 meters high all incoming statistics angles would be covered. Mmmmh, to be included on the to-do list. Click thumbnail to enlarge Click thumbnail to enlarge Click thumbnail to enlarge Click thumbnail to enlarge Home        Shack       Antennas       Maritime Mobile       Propagation        Gallery          QSL info