Last month we looked at radio at the start of the Great Depression and how RCA’s President David Sarnoff made the decision to license the heterodyne circuit to any manufacturer willing to pay ...

Model 82 Marconiphone super-heterodyne receiver (8 valve) with frame aerial and dummy valves, introduced September 1927, made by the Marconiphone Company Limited, Dagenham, London, England, 1927-1930.

This was final semester solo project in the undergraduate studies. A “Super heterodyne receiver” uses frequency mixing principle to convert a received signal to a fixed intermediate frequency, which ...

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With 4G wireless standards such as WiMAX and LTE poised for deployment, many cellular network operators are looking for more efficient use of wireless spectrum and cellular base transceiver station ...