Accession Number : ADD006227

Title :   Phase Lock Loop Controlled Offset Local Oscillator System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Hafner,Erich

Report Date : 03 Oct 1978

Pagination or Media Count : 9

Abstract : This patent discloses apparatus utilizing single sideband techniques for generating a local oscillator signal of high spectral purity which is offset from a relatively wide-band signal generator frequency f sub g = 0.8 - 220MHz by a constant IF frequency difference f sub 0 = 46KHz. The output signal is coupled from one of a plurality of phase locked oscillators having overlapping frequency ranges which act as active filters to obtain improved spectral purity. (Author)

Descriptors :   *Patents, *Local oscillators, *Radiofrequency generators, Phase locked systems, Radiofrequency filters, Voltage controlled oscillators, Low pass filters, Circuit analysis, Schematic diagrams

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE