[VHFcontesting] [WSVHF] [Mw] VUAC Seeks Input
Ron Klimas WZ1V
wz1v at sbcglobal.net
Wed Dec 2 09:02:47 PST 2009
Hey Kent you may be onto something, I remember reading an article
years ago in one of the electronics magazines where someone figured
out how to modulate a candle flame within an electromagnetic field.
They called it "flame-powered speaker" as it also produced sound -
which for us provides built-in monitor/sidetone function as a bonus!
-73, Ron WZ1V
At 09:42 AM 12/2/2009, Kent Britain wrote:
>Not at all!
>On a dark night you can see a candle at 1 km.
>With small telescope, well beyond that.
>You could even run FSK!
>Have two candles and put a shutter on only one of them!
>In 1898 the US Army Signal Corp ran a 204 mile communication
>hop between a mountain in Utah and one in Arizona using
>Helostats. Basically mirros and a shutter.
>John D'Ausilio wrote:
> >if the league strengthened the minimum distance "suggestion" into a
> >hard rule, that would eliminate most flashlights and all candles :)
> >de w1rt/john
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