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Telamon wrote in message ..
Isn anyone going to comment on the transformer not showing a higher S meter reading on the radio? This sure surprised me. Maybe the two stations I picked happened to be in a good spot where it wasn needed. Not too surprising.. Will depend on the freq. Being your antenna is folded, I would have to model it to see the src data for each shortwave band. I'm guessing it would be about as for a single wire version, except the with appx 4 X transformation of the folded antenna. Anyway, the feed impedance will vary all over the place from band to band. You probably have about as good a chance getting a usable match without the transformer, as you do with it. In some cases, the transformer could actually make the match worse. Some will be better. Some about the same. This is a common scenario when running an antenna like a G5RV. Most use 4:1 baluns. But really a 1:1 balun makes about as much sense being you are already using a tuner. Of course, I don't like the feeding of the average G5RV's. I'd dump the coax and feed straight with ladder line. I don't like mixing feedline types and then using a balun to try to assure a good match between lines. Usually, the match is not very good, and you have more loss. But this is mainly a transmit issue, not receiving at HF. MK |
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