On Sun, 15 Jul 2007 14:41:33 GMT, "Amerigo Vespucci"
wrote:

I constructed an extended double zepp for
10 meters out of #12 solid house wire .
I didn't have any ladder line laying around so I decided to make my own but
all I had was some #10 stranded wire. I made the spacers 1" apart and and
put about one per foot and the total feedling is approximately 25 ft. and
it's going through an MFJ 941E Versatuner .
I can't get my SWR's below 2 . I'm sure there are a lot of varibles here but
I was hoping someone could point me in the right direction.My first guess is
that I should have used the #12 for the feedline and the #10 for the antenna
.
Thanks in advance ,
Will

For what it's worth, a graph in one of my older ARRL antenna books
says #10 wire at 1-inch spacing should have a characteristic impedance
a little under 400 ohms.

bob
k5qwg