visitor [Mike Y] responded to our “What are you working on?” post with his stereo FM transmitter project. If you’ve ever utilized an FM transmitter for your portable audio, you understand that even the very best consumer level ones can be difficult to make noise decent.
He acquired an NS73M FM Transmitter module from Niigata Seimitsu Company, however it needed a controller to handle pre-emphasis, modulation level, frequency, as well as power level. He decided on an Arduino which would likewise manage his LCD.
His results were rather good, with decent variety as well as exceptional audio quality. His overall expense therefore far is $35, however he still needs to put it in an enclosure. You can discover total schematics in addition to source code as well as practical tips on his site. You may likewise want to inspect out the regulations on broadcasting(pdf) as well.