[TowerTalk] Fw: elevated radials vertical

Gary Schafer garyschafer at comcast.net
Sun Jun 10 13:03:55 EDT 2007


> I can build a ground system with terrible efficiency that
> has low impedance, and build a good one with high base
> impedance. For example W7EL and myself recently carefully
> measured the base impedance of a 40 meter 1/4 wave vertical
> and measured field strength. It was 35 ohms or so. We then
> changed ONLY the ground system and had a new base impedance
> over 50 ohms, and the field strength was much better for the
> same exact power delivered into the antenna.
> 

What did you do to the ground system that made the base impedance go up but
yet increased the field strength?

73
Gary  K4FMX




More information about the TowerTalk mailing list