--- In Repeater-Builder@yahoogroups.com, "W8MIA" <[EMAIL PROTECTED]> wrote: > > There is one SMALL problem with your Hypothesis. RF is transmitted by > Electrons. Light is transmitted by Photons. Science has a rather good > handle on Electrons but Photons are still not fully understood!!! > This having been said does anyone have an understanding of Smoketrons and how they propagate<;)
> Apples & Oranges!! > > August > W8MIA > ==================================================================== > > > -- In Repeater-Builder@yahoogroups.com, "skipp025" <skipp025@> wrote: > > > > > > The advantage of a dark antennas is how snow and ice might melt > > off it faster... and most of all how you can't easily see a black > > mobile whip on your car so it tends not to get tampered with as > > much. > > > > s. > > > > > Roger Grady <k9opo@> wrote: > > > > > > At 12:39 PM 2/21/2007, Steve Bosshard \(NU5D\) wrote: > > > > > > >Regarding a clean and shiny antenna, we had a discussion at > coffee. The > > > >preposition was that radio waves and light have many > similarities, ie., > > > >wavelength, reflection, Fresnel behavior, and so forth. Using these > > > >similarities, a mirror reflects light, and a dark surface absorbs > > light, > > > >sooooooooooooooooo, wouldn't a shiny antenna reflect incoming > > signals while > > > >a dark colored antenna absorbs signals? This may only apply to > > receiving > > > >antennas - hope I can get this idea to market before the April 1 > > edition of > > > >QST.. .... .. .... .. de nu5d > > > > > > Cute idea. However... How do you know aluminum that's shiny or > black at > > > visible light frequencies is still shiny or black at radio > frequencies? > > > Maybe RF black is visible day-glo orange, or pea-soup green. Or > > maybe it > > > would absorb light so well as to be invisible. I think this would > > make a > > > good April 1 article. I haven't written one for our repeater club > > > newsletter for a few years, maybe it's time for another. Assuming > > you don't > > > mind if I borrow your premise. > > > > > > As I think about it a vague sense of deja-vu is forming. Maybe there > > was an > > > April Fool's article years ago somewhere about invisible antennas? > > > > > > Roger Grady K9OPO > > > > > >
