Topband: Shunt fed tower

[Herb Schoenbohm]

w8uvz wrote:
> Hi Phil
>
> There is an excellent article in Ham Radio May 1975 by John True, W4OQ on 
> "shunt-feed systems for grounded vertical radiators".  His system uses an 
> omega match for matching the gamma rod (or wires) to the radiator.
>
> Using large diameter tubing or multiple wires for the gamma will result in 
> more usable bandwidth on top band.
>
>
>   

Using the other solid aluminum shield on discarded 3/4 inch CATV cable 
end runs (called by some 750 or .750) spaced 24 to 36 inches from a 
towers is a significant improvement over a single #8 wire.  Yet a 
skeleton cage around the tower and taped at or near the "sweet point" of 
3 or 4 wires is even better.


Herb Schoenbohm, KV4FZ