January 1971 | NTIA Technical Memo OT ITSTM 25
A study and forecast of the electromagnetic spectrum technology (Part III)
William J. Hartman
Abstract: Some factors which could or should affect frequency allocations and assignments in the future are considered. These include propagation predictions, modulation, coding and information processing. In addition a forecast of the use of cables as replacements for Broadcast TV and microwave relay is presented.
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