[WARC] antenna modeling result.

[Leslie Hittner]

We would need a couple of things to drive the Vee:
   1. A balun of some sort
   2. A stub match to transform empedances and deal with
capacitive (-) or inductive (+) reactances or a good matchbox
mounted at the base of the Vee (Some matchboxes have build-in
baluns.)

Does anyone in Winona have an old Johnson matchbox?

As far as using transmission line stubs: I would guess we would
have to switch stubs when we changed bands. I would have to
research relative lengths of the stubs but they would hover
around 1/4 wavelength - slightly longer or shorter depending
uypon the needs of the match. Looks like they would all be open
(not shorted) at the far end.

85.64 -j5.107 ohms at 14.25 MHz (Capacitive - requires an
inductance to cancel)
140 + j1362 ohms at 7.16 MHz (Inductive - requires a capacitance
to cancel)
7898 - J19040 ohms at 3.74 MHz (Big capacitance - requires an
inductance to cancel)

The biggest mismatch appears at 3.74 MHz. A stub may not work
well here since the length would have to be very close to 1/4
wave length to transform the impedance and that would not allow
for much inductive reactance since the stub offers no reactive
component at 1/4 wavelength.

That's enough spitting in the wind. I haven't researched this.

-Les, K0BAD