From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Page two of a letter to Major L. W. Cox concerning interference with short wave and television reception in cars.
| Identifier | ExFiles\Box 63\2\ scan0294 | |
| Date | 21th April 1937 | |
| -2- Major L. W. Cox. 21st April, 1937. suppressed, badly interferes with short wave radio reception. The trouble, however, does not end there, for such interference is considerably worse on the ultra short wave band used for television, since the distortion of pictures is considerably more offensive to the eye than the sound interference is to the ear. Television and short wave reception are so rapidly gaining popularity in the British Isles that it seems to us car manufacturers may desire to be ready for any legislation, for without this required knowledge any restrictions which may be imposed might temporarily disorganise the production line, or seriously affect the sales off-take in cars. Philco have more experience than any other radio manufacturer in the suppression of interference from car engines, due to their development of car radio receivers, which demand similar precautions to be taken at the time of installation. May we therefore volunteer to you the services of our laboratory and engineering staff, if you are seeking the answer to this problem. Yours very truly, [Signature] Manager. Car Radio Division. | ||