Features
- Cover Type: Paperback
- Published by: American Radio Relay League, Inc.; Fifth Edition edition 1970
- ASIN: B000H9MH8C
Product Description
"Many amateurs think of single sideband as a relatively new method of phone communication, but its origins actually go back to the early part of this century. Fifty years ago it was demonstrated mathematically that two sidebands accompany the "carrier" wave as a result of the modulation process. The two are identical, except for their frequency relationship to the carrier, and each one carries the complete intelligence in the signal. This immediately suggested that only one actually was necessary. The other, along with the carrier, could be eliminated before transmission, with a considerable saving in power and spectrum space" [from foreword by John Huntoon]