[Laser] Melbourne: light beam to 160 metres cross band contact in 1975.

[Chris L]

Dear folks,

One of the earliest optical contacts I conducted with amateur ops involved 
was between the shacks of VK3ASE and VK3BEK in mid-1975, about 2.5 km using 
a modulated neon lamp in an old traffic light parabolic reflector at one end 
and a 931A photomult behind a 5 inch magnifying lens at the other. A 
five-minute audio grab of that contact is at:

http://members-central.optushome.com.au/vk3ase2/3c.rm

Another contact, from about March 1976 with VK3AML on 160 metres, VK3 ZGJ on 
2 metres and me on a modulated mercury arc light beam with ZGJ receiving on 
a PM and 5" lens is available as an audio grab on:

http://www.bluehaze.com.au:8080/ramgen/egg_long_lightbeam_excerpt_1974_death.rm

So amateurs DO have contacts with unlicensed people on light beam, in spite 
of all...

...and I thought you were all such law-abiding chappies!

Have fun!

Chris Long (Melbourne, Australia)