High performance VTR based on the S-VHS format

A brief overview is presented of the S-VHS videotape recorder (VTR) format. This format features horizontal resolution of about 420 lines, surpassing the performance of previously available household VTRs. FM frequency allocation for the S-VHS format is 5.4 MHz at the synchronizing signal peak to 7.0 MHz at the white peak; the carrier frequency is 2.6 MHz at the white peak level. The frequency deviation has been expanded from the 1.0 MHz of conventional VHS to 1.6 MHz. The authors discuss the resulting picture-quality improvement due to the higher carrier frequency used (2.6 MHz) along with the circuitry and the separate Y/C (luminance and chrominance) inputs and outputs used with this format.