[Laser] 5 mw laser transceiver kit

[Tim Toast]

I guess for me it's mainly the low power aspect of it. Not just 
that though, the prospect of running it on 2 "aa" batteries 
that could last for weeks of intermitant use. Also the challenge 
of making it cheap and simple. If i could make one using four 
transistors and a laser diode dug out of an old dvd player, all 
the better. For an extra bell and whistle, maybe a digital I-O 
and a small solar pannel glued to one side to charge the 
battery!


---- Chris L <vocalion1928 at hotmail.com> wrote: 
> 
> 
> ...why do people persist with lasers for atmospheric optical communication?
>