View Single Post
  #9   Report Post  
Old June 22nd 04, 02:37 PM
Brian Kelly
 
Posts: n/a
Default

Mark Keith wrote in message ...
Brian Kelly wrote:


Center-fed dipole-based antennas don't need station or installation
site RF grounds. Horizontally or vertically oriented. All end (base)
fed verticals need RF gounds so don't use 'em in your situation.


I've never needed an rf ground for a base fed half wave. A decoupling
section with radials is an option to reduce feedline radiation..Not
required to work though. MK


You lost me Mark. You have a vertical half-wave wire fed at it's base.
You have an unbalanced L/C network which matches the very high
feedpoint impedance to, say, a random length of 50 ohm coax. What do
you do with the coax braid and the ground side of the tuner?

Brian w3rv