A Stereophonic Transmission System for AM Broadcasting

Hollywood JM, Kronenberg M. A Stereophonic Transmission System for AM Broadcasting. J Audio Eng Soc. 1961;9(2):140-144. Available from: https://aes.org/publications/elibrary-page/?id=473

@article{Hollywood1961_473,
  author = {Hollywood, John M. and Kronenberg, Marvin},
  title = {{A Stereophonic Transmission System for AM Broadcasting}},
  journal = {Journal of the Audio Engineering Society},
  volume = {9},
  number = {2},
  pages = {140--144},
  year = {1961},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=473}
}

TY  - JOUR
TI  - A Stereophonic Transmission System for AM Broadcasting
AU  - Hollywood, John M.
AU  - Kronenberg, Marvin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 9
IS  - 2
SP  - 140
EP  - 144
PY  - 1961
DA  - 1961/04/06
UR  - https://aes.org/publications/elibrary-page/?id=473
PB  - Audio Engineering Society
LA  - en
AB  - The quadrature modulatio method of AM stereo broadcasting utilizes normal double sideband AM transmission to convey the sum signal, and an added pair of sideband phasors, the sum of which is quadrature with the carrier phasor, to convey the difference signal. The system described here features processing of the (A+B) and (A-B) channels to insure optimum compatibility and stereophony. The resulting spectrum, effects on existing receivers, and performance of stereo receivers designed for the system are discussed. The application o- this method to a 250 w transmitter and to a high power broadcast transmitter presented some implementation problems. The means of overcoming these are discussed and a description of conversion equipment is given.
ER  -