[Elecraft] OCF antennas and baluns??

[Ron D'Eau Claire]

From what I've read, Windom's plan was to match the single wire feed
impedance on the horizontal dipole. That way it would have no standing =
waves
and so would not radiate. Normally, that point was established by =
monitoring
the current in the horizontal dipole on either side of the single wire, =
and
adjusting it so the currents were the same. That indicated that the feed
wire had no effect on the dipole current, and so had no standing waves.=20

Of course, even if the Windom feed WAS correctly set for no standing =
waves,
it was good on only ONE frequency! On any other frequency the wire =
radiated
- usually quite a lot.=20

Pretty soon no one cared much about finding the "magic spot" and simply
guesstimated the position of the wire at some percentage of the length =
from
the center of the dipole and accepted the feeder radiation as part of =
the
deal.

Ron AC7AC

-----Original Message-----
Remember the true old Windom design was a single wire feed, and thus =
surely
radiated from both the wire feeder and the flat top.   He was attempting =
to
find a tap setting on the flat top that would more easily load on =
multibands
with the old transmitters of his day.

Stuart
K5KVH