[Laser] Dr Mike Groth's (VK7MJ) opt comms review "Photophones Revisited"

[Chris L]

Dear Group,

We've just put up Dr Mike Groth's comprehensive survey of optical comms as 
an .html document - hope you enjoy the content of his article 'Photophones 
Revisited'. Circuit diagrams - graphs of atmospheric optical transmission 
and background radiance - optics info - and lots of references:

http://www.bluehaze.com.au/modlight/GrothArticle1.htm

Comments, corrections or brickbats welcomed (!) at the e-mail address above,

All the best,

Chris Long, Melbourne Australia