Topband: "Linear Loading" & 160-Meters

[K4SAV]

Edward Swynar wrote:
> Hi Jerry,
>
> I beg to differ with you, but the "classic" Bobtail is, indeed, a
> voltage-fed array. Period.
>   

It may be true that a "classic" Bobtail is fed at the bottom, but that 
doesn't mean feeding it at the top won't work.  If you want to call it 
some other name when fed at the top, have at it.  If you take the Robert 
Tail you were referring to and invert it, you have a Bobtail fed at the 
top.  It doesn't stop working.

I didn't give the implementation required for this because it wasn't 
relative to the original question which was a comparison between a full 
size Bobtail and a short linearly loaded one.  Obviously the physical 
implementation for the top fed Bobtail for 160 is more difficult.  K2AV 
pointed out that just a choke at the feedpoint doesn't keep the feedline 
from affecting the antenna, and that is very true.  The same can be said 
of any other conductors that happen to be in the vicinity of the 
antenna.  An implementation was beyond the scope of the original 
question so that was not included.

Jerry, K4SAV