NTSC DECODER

An electronic circuit that breaks down the composite NTSC video signal into its components. It’s the receiver side of the encode, decode process used to compress three channels of color information into one, then expand it back to the three channels required for viewing. There are two basic types of decoders, Comb Filter and Notch Filter. There are a number of subdivision in the category of Comb Filter, including one that uses the Notch Filter.