A cable carrier FM telephone system.
Charles Maples Heath · Calhoun: The Naval Postgraduate School Institutional Archive (Naval Postgraduate School) · 1973
A multichannel frequency division multiplexed FM telephone system is presented. The system is intended for use in organizations where large numbers of telephones are normally installed and is compatible with conventional switchboards. Advantages provided by the system are: reductions in installed wiring the ability to relocate telephone sets by the subscriber, and compatibility with other coaxial cable systems. (Author)