What is signal modulation? Do different types of modulation changebiological effects?
Signal modulation is a process whereby certain characteristics of a radio wave are varied with transmitted information (voice, pictures and data). Different signal modulations in both analogue (e.g. AM and FM) and digital (numeric) formats have been used in radiocommunication. Although most radio technologies originally used analogue signals, modern wireless telecommunications use digital transmissions. Detailed scientific reviews conducted so far have not revealed any hazard specific to different RF modulations.
