Some Notes on Adjacent Channel Interference

This paper deals with a form of adjacent channel broadcast interference brought about largely as a result of nonlinearity, misadjustment, misoperation, or improper design of the broadcast transmitter and associated equipment. The nature and the significance of this particular form of interference was first pointed out by E. H. Armstrong and W. L. Carlson as restricting the further development of receiver selectivity and fidelity, and it was largely at their instigation that a study of the problem was made in Schenectady in cooperation with RCA Victor and Westinghouse engineers.