The document summarizes a student lab project to build a communication system with the following key points: 1) The system transmitted a 600kHz carrier signal modulated with an audio message between 20Hz-20kHz across 5 meters with less than 15% total harmonic distortion. 2) The built system achieved 580kHz transmission (3.4% difference), 3.4% total harmonic distortion, and could transmit across 10 feet using a handheld radio and 2 feet using a receiver. 3) The transmission side included an input amplifier, Colpitts oscillator at 590kHz, amplitude modulator, and transmission amplifier. The receiving side included a receiver amplifier, envelope detector, and output amplifier