New concentric RX/TX optical system.
Kerry found some mirrors with holes in the middle.
This technique eliminates the paralax issues with alignment of
side by side systems
This is a pic of a 4 mile path to a small retroreflector seen
thru a 24x rifle scope.
Kerry's current (May 2002) optical communicator that runs voice,
PSK, SSTV.
Schematic for full vided demo system.
Kerry's Optical Communicator pics
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