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I0-049/RM - IZ0OWD

Italian SWL and Ham Radio Station

Dipole or Windom?

After about two years of honorable service of my Carolina Windom Radio Works, model 80 short, it went to hell (literally, given the closeness of my QTH with the Vatican).
The Front End of all radio, I had at the station, has begun to saturate the medium-wave broadcasts of RAI and I could not make a QSO with the QRM that exceeded the 9 +20 (if it was OK).
One morning, in desperation, I call my friend Charles IK0APA and, thanks to the promise of a breakfast bar, we went to the roof and hooked to my antenna switch of a small antenna for HF SSB portable, the MP1 of Superantennas, without even adjust it for a specific band.
Miracle, the reception was very silent, and after a quick adjustment I have completed two quick QSO on 80 meters, but then what happened?
It was evident that the Radio Works had something wrong!
For those unfamiliar with the Carolina say that it is made with two asymmetrical arms, by a balun, by a length of coaxial cable of about 3 meters and passes and by a choke, the vertical portion of the house is called "vertical radiator".
The hypothesis is the one that after two years of bad weather, something has penetrated inside the balun or choke (read water) or toroids have been a good cook :-) .
At this point a solution that was urgent, though not definitive, I put in condition to do radio.
I remembered lying in a drawer of a 1:1 balun Diamond, so I somno used immediately to make a nice dipolino, about 10 meters. per arm and the balun at the center.

Particular dipole 80 meters

Two ceramic insulators on the ends and running quick on the radio to try.
I did not make specific calibration of the tuner, but I trusted the station (very badly and you say I agree) but it was late and I did not want to stay on the roof at sunset.
However, good agreement in 20 meters, in 18, 21, decent on 80 meters, about 24 and about 28 meters.
For the moment, the dipole has been mounted that way, but wait a moment for a finer adjustment.

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