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In article om,
"N9NEO" wrote: Telamon wrote: In article . com, "N9NEO" wrote: Telamon wrote: In article .com, "N9NEO" wrote: Just out of the noise here in Uxbridge, MA 00:30 UTC. Listening on the R75 on the Twisted Terminated Folded Dipole in the Attic . Snip You mean Tilted Terminated Folded Dipole (T2FD)? http://en.wikipedia.org/wiki/T2FD_Antenna Hi Telamon, It started out as a tilted dipole, but I didn't have enough height in the attic, so RHF suggested that I twist it around about it's axis. It works very nice, but still some noise from all the electronic gadgets in the house. In the fall I will stick a long wire across the river in the way back. Nothing wrong with the dipole being horizontal instead of tilted. I do not think twisting it is a great idea but it looks like it works OK. -- Telamon Ventura, California Hi Telamon, Did you simulate it? It seems to work very nice, but I don't have a lot of experience with too many swl antennas. as I said already, RHF suggested the twist. I'm not sure if he had simulated or not. No I don't simulate antennas. Antennas follow basic rules and usually all you have to do is apply some logic. I don't see any advantage to twisting a folded dipole other than shorting the physical space need for one cut to some frequency. Coiling elements generally causes them to be less effective on receive so I don't expect doing so would result in an improvement. If you can fit a folded dipole in the space you have cut to the lowest frequency you want to receive then there is no reason to twist it. -- Telamon Ventura, California |
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