HT + DTMF = Fun: Simple Digital Communication for Handheld Transceivers
Presentors: Zhemin Zhang KD2TAI
Is it possible to send text and images by just dialing on your HT keypads? Have you ever wondered how the dial tones work? In this talk, we discuss a simple protocol to transfer data using your HTs by encoding information, including text, images, or arbitrary files, into DTMF tones: this minimal yet functioning setup serves as an introduction to modern digital communication systems.