Application of Millimeter Microwaves for the Transmission of a Multiplicity of Television Bandwidth Communication Signals on a Single Carrier

A millimeter microwave system has been produced for the American Cable Television (CATV) market which permits the simultaneous transmission of a single carrier of as many as 18, six megahertz wide, television signals in a radio frequency bandwidth of 250 MHz. Any other combination of vestigial sideband, frequency division multiplexed signals which fit the baseband of 5 to 114 MHz, can also be transmitted through the system. The technique utilized, design considerations and the results obtained, are described.