1. S

    Rossville, Shelby/Fayette machine to machine coms

    I'm having trouble parsing FCC rules, band plans/freq coordination, etiquette. Could use an Elmer. I build mobile robots for personal non commercial use; mostly to explore my local world where wheelchair can't go, or perform some chore. I got my ham license specifically to experiment and get...
  2. K

    Testing a new form of Data modulation.

    While playing with my Arduino, I decided it would be neat to attach my headphones to the serial out to see if anything could be modulated with it. Turns out that the sound bandwidth on that serial data is about 500hz, and that it could probably be connected to a radio and transmit with some...