Topband: Bobtail curtain

[K4SAV]

K4SAV wrote: Put the source at the top of the center wire. That will 
give the same answer....

That statement that needs a little correcting.

Feedling the bobtail at the top of the center wire will give the same 
gain but not the same feedpoint impedance.  Feeding at the bottom will 
be a high impedance point, and feeding it at the top will be a low 
impedance point.

Jerry, K4SAV