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Hobbyists Create GPLed DIY Super TV Antenna
Freshly Exhumed writes "Retired and hobbyist antenna engineers working together in the Digital Home forums have taken an obscure 1950s UHF TV antenna called the Hoverman [PDF] and subjected the design to modern software-based computer modeling in hopes of optimizing its middling performance. The result: the new Gray-Hoverman antenna is more powerful than similar commercially manufactured consumer antennas in every category, sometimes by whopping amounts. Best thing yet: they've released the design, diagrams, and schematics under the GPLv3 so that we can roll our own! Quoth one of the testers, a former U.S. Government antenna engineer: 'Boy, this antenna is hot... This antenna is a vast, and I mean REALLY VAST improvement over anything I have used.' The home thread of the Gray-Hoverman development gives the background of their great work."
This is a specific variation of the Hoverman antenna. The first original achievement is the specific design, which would be enough justification for an article on its own. I'm not an expert on the history of antenna design so I can't vouch for that.
The second and more important achievement is that the designers tried to verify the design of this antenna analytically using relatively new methods. The computational power needed to do this didn't emerge until after this kind of small antenna was no longer in vogue. As you probably know, about half of what hams say about antennas and interference is "black magic." The kind of hands-on techie who turns into a ham tends to be more like MacGuyver and less like Bertrand Russell.
Why would the existence of antenna design as a discipline imply that no new designs are possible?
What's amusing, (and not in a funny-haha sense, but more in a funny-smell sense), is all the new antennas out there advertising that they're somehow "digital" antennas as if the mode affects antenna performance. I suppose they *could* be optimized for the smaller bandwidth somehow, but that's not how they're being advertised. It's not as if your 17 element beam on the roof is going to suddenly start working worse than an indoor loop-antenna.
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