That's not what he asked. He asked why hams orient yagis horizontally rather than vertically ... not why they use vertical polarization on some bands versus horizontal on others. Dave AB7E __________
I would guess it's because in the beginning our bands started below 200Meters and horizontal antennas became the norm due to their reflective gain and sheer size. Picture a 200 Meter vertical antenna
How the antenna interacts with the earth in the far field is a BIG part of it. Try modeling a vertical 40M dipole and a horizontal 40M dipole at various heights, then plot their patterns on the same
No - it IS the polarization of the far field signal resolved as separate horizontal and vertical components. Take a look at the two components for a hexbeam as predicted by EZNEC: http://www.karinya.
Thanks Steve -- I stand corrected. I've never played with that part of EZNEC before! 73 -- Larry -- W1DYJ _______________________________________________ _____________________________________________