Current radio interference problems

The paper deals almost entirely with interference with television reception which is already a much more serious problem than interference with other services. After a brief historical review the most prominent interfering items revealed by the G.P.O. statistics for 1951 are discussed as regards their cause, responsibility, specifications and cure. The interference clauses of the Wireless Telegraphy Act of 1949 are reviewed, together with the work of the Postmaster General´s Advisory Committees set up under the Act. Evidence is given of the improved performance of petrol engines resulting from the fitting of ignition suppressors. Steps which are being taken by the radio industry to meet their share of the responsibility are described.