Modulation1010500103030010106001010507ModulationDifferent modulation schemes have been adopted for the radio services, such as broadband amplitude modulation (AM) and frequency modulation (FM) for broadcast, narrowband FM for line-of-site two-way voice communications, single sideband (SSB) for long-distance voice communications via the ionosphere, and digital modulation for high-speed point-to-point or multipoint microwave radio communications links.<emphasis role="bold">…</emphasis>
