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Re: Optical COmms experiment

LEDs.  That same 3 watts you'll burn in the incandescent light will get
you oh so much more light.  And you'll never have to send someone up to
orbit to change the lightbulb when it burns out.

On Fri, 4 May 2001, Vince R. wrote:

> Would a "strobe" light of some kind provide better margins due to
> it peak power output? Maybe incorporate a small parabolic reflector
> to focus the beam a bit... Instead of CW, maybe it could send "Real
> Morse," which would be compatible with short duration light flashes.
> We could have a LOT of fun with small telescopes hooked to CCD's.
> My hand made, wide field, 6" f4 newtonian is gathering dust :)
> Imagine putting that tube on my AZ-EL boom!
> > Bob Bruninga wrote:
> >
> > > Warren Lee and Tony Beresford have both confirmed the 12th magnitude
> > > visibility for a 3w incandescent bulb at 500 miles.  This now leads me to
> > > a new CUBESAT design idea:  OPTIsat!
> >

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