Feasibility study for a new compatible quadruplex video recording standard

All the parameters affecting the performance of a video recording system are critically considered and proposals are made for achieving the necessary quality of output with the tape speed reduced to 6 in/s for 2-in wide tape. The new standard calls for reducing head size, track widths and guard bands. Unwanted beat components in the f.m. system are reduced by adopting a super highband system with the black carrier frequency being about 10 MHz and the white carrier in the 12 to 13 MHz region. A pilot tone error correction system is described. Factors affecting audio recording quality are also discussed.