Ramsey Electronics (the Kit guys) have released a laser communications kit: http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=LBC6 K It appears to be a pulse-width modulated transmitter with a baseband audio receiver. $39 includes the TX (with laser) and the RX module kits. I ordered one to play around with. Marc - N8KWX EN62ad Arlington Heights, IL