Re: Ferrite Sleeve Loop Antennas in 2006?
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<<< There have been similar controversies with the SuperLoop antenna, which I developed not realizing that it would become part of the terminated broadband loop antenna family including the Flag and Delta. The SuperLoop was originally a Ewe antenna. When I was getting disappointing results from the Ewe due to its dependance on a good ground, I tried connecting the grounds with a horizontal wire between the termination and matching transformer, thus completing the "ground" connection between them. Eventually the earth grounds were disconnected, leaving just the horizontal wire between the former ground points of the Ewe, and the SuperLoop was born. Many have dismissed the design because it was derived from random experiments rather than mathematical theory, and some say I stole the design from the Flag and Pennant. >>>
Thanks, Bruce-- that's very interesting. There is a lot of interest in the SuperLoop here on the west coast, especially in Mark C.'s micro-SuperLoop variety, which will fit in nicely at our ocean cliff sites. Next summer, I think that you will see quite a bit of DXpedition activity at these sites, none of which will accommodate full-sized traditional DXpedition antennas.
<<< I've learned not to listen to the purists when they start up with their "holier than thou" attitude. So keep up the good work with FSL development. Hopefully you'll stumble upon a broadband FSL design for SDR RF spectrum captures. >>>
Well, it's best to remember that DXing is a hobby, not a religion :-) Antenna design controversies are probably unavoidable, but I would much rather spend my limited hobby time improving my antennas, and chasing transoceanic DX. Sooner or later the superiority of a new antenna will be obvious to all, despite the ruffled feathers that sometimes occur in the process.
As for the new FSL antennas, we all can see the great desirability of an effective Broadband FSL design, but after spending over $1 K on the project (mainly to benefit Perseus-SDR DXers), I think it's time that a few others contributed some time and resources to the effort. Alternatively, when two new Tunable FSL designs (15" and 18") are completed this winter, they may prove effective enough in ocean cliff DXing to motivate the SDR DXers to get serious about trying out some new Broadband FSL ideas.
Thanks again for your comments, which are greatly appreciated!
73, Gary
-----Original Message----- From: Bruce Conti To: ultralightdx Sent: Sat, Dec 21, 2013 8:02 am Subject: Re: [ultralightdx] Ferrite Sleeve Loop Antennas in 2006? On Sat, Dec 21, 2013 at 5:04 AM, <D1028Gary@...> wrote:
There have been similar controversies with the SuperLoop antenna, which I developed not realizing that it would become part of the terminated broadband loop antenna family including the Flag and Delta. The SuperLoop was originally a Ewe antenna. When I was getting disappointing results from the Ewe due to its dependance on a good ground, I tried connecting the grounds with a horizontal wire between the termination and matching transformer, thus completing the "ground" connection between them. Eventually the earth grounds were disconnected, leaving just the horizontal wire between the former ground points of the Ewe, and the SuperLoop was born. Many have dismissed the design because it was derived from random experiments rather than mathematical theory, and some say I stole the design from the Flag and Pennant. I've learned not to listen to the purists when they start up with their "holier than thou" attitude. So keep up the good work with FSL development. Hopefully you'll stumble upon a broadband FSL design for SDR RF spectrum captures.
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