ABSTRACT
The SECAM and PAL systems were designed so that they would make use of the basic tenets of the NTSC system, but would avoid the two most objectionable shortcomings of this system, its susceptibility to phase errors, and the consequent need for receivers to be fitted with a hue control. It should, however, be stressed that under most conditions NTSC is capable of providing very good results and that the improvements obtained in these other systems, whilst significant, have not been great enough to prevent a large part of the world’s population from being very content with NTSC pictures. In addition, the benefits of the newer systems have only been achieved at the expense of some increase in the complication of the receiver.
