[AK-VHF] which polarity is preferrws for long-range VHF/UHF/mw shots

[Ed Cole]

I thought this was an interesting answer why horizontal polarity is 
chosen as standard for weak-signal VHF and up operation:

"Yes polarization is maintained under clear free space paths. 
Reflections off of angled structures can cause polarization rotation. 
Propagation through magnetically biased plasma (the Ionosphere) result 
in polarization rotation."

**This is called Faraday rotation for satellite and eme signals**

"Reflections off of surfaces that have the same orientation as the wave 
tend to reflect more efficiently. This is why horizontal polarization is 
preferred for paths beyond the horizon. Troposphere bending is greater 
when the waves electric field is is in the same plane as the boundary.

Brian
WA6QDP"

73, Ed - KL7UW
NOTE: DEADLINE for Contest log submission (TEN DAYS after end of the 
contest: June 22 19:59 Alaska Daylight Standard Tine