The cheapo one I played with worked out to about 100 feet with the receiver in direct sunlight. That toy system used a 1 cm plastic lens on the transmit side. Range could be extended with larger lenses.
The light is modulated at kHz frequencies. I never measured the modulation frequency, but I'm guessing it's 38 kHz, because that's a standard for remote control, and detector-demodulators are available in a 3-pin package for $2. -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat
