Peter H. wrote:


A Franklin radiator looks like two self-supporting towers, one inverted on top
the other, fat ends touching.


Nope.

A Franklin is defined as a center-fed sectional, which is 180 degrees over 180
degrees. The base of the bottom section is connected to the ground system by an
impedance, usually a capacitor.

So it is asymmetric, with the two sections slightly different lengths, or the
base capacitor is used to compensate for that?

If it were in free air, it would simply be a vertical dipole, but since the
ground is below it, the electrical lengths of the bottom leg is changed,
right?

KSTP's Franklin is not a Frankin on account it is 179 degrees over 179 degrees.

What does this do to the pattern in real terms?
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."