[TowerTalk] Compromise Vertical antenna ground system?

[Thor Hallen]

All vertically polarized antennas suffer wave propagation loss at low 
radiation angles near an imperfect ground. A 1/4 wave vertical will suffer 
this loss regardless of the near field ground system. The 1/4 wave vertical 
depends a ground system to create a negative image of the monopole 
radiator. With a perfect ground, the monopole and it's image behave like a 
dipole in free space. The vertical dipole does not depend on a ground image 
allowing it to be elevated to reduce propagation loss.

73,
Thor Hallen K5AGE


--
FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com