NASA NTRS · 19640000972
The fm demodulator with negative feedback
Abstract
This paper describes the design and theory of operation of the wideband FM demodulator with feedback (FMFB receiver) used at the Andover, Maine, earth station for Telstar satellite communications tests. Performance data for the FMFB receiver indicate a clear advantage over the conventional FM receiver in many cases. The principal advantage lies in the ability of the FMFB receiver to raise the threshold at which “breaking” occurs for TV and other wideband signals.
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A. J. Giger, J. G. Chaffee. 1963-03-22. The fm demodulator with negative feedback. https://ntrs.nasa.gov/citations/19640000972
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