[TowerTalk] Fwd: Fwd: OWAs or Fans?

[Jim Brown]

On Sun,6/19/2016 9:31 PM, Edward McCann via TowerTalk wrote:
> Thanks for clarification on this most interesting topic, i.e. A CM Choke for open feeder.

I'm going to repeat it, because folks are not paying attention. At power 
levels about about 100W, it is NOT PRACTICAL to choke any form of 2-wire 
line that has an impedance higher than about 100 ohms, and it is not 
practical to choke a mis-matched line (that is, the typical 
one-size-fits-all antenna fed by window line or open wire line). 
Off-center-fed antennas are even worse, because they are inherently 
unbalanced. And even if you DID choke it at low power levels, you'd be 
losing a LOT of TX power in the choke.

73, Jim K9YC