Accession Number : ADD008699

Title :   Modulation Monitoring Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Campbell,Kenneth J

Report Date : 12 May 1981

Pagination or Media Count : 4

Abstract : An apparatus is described for converting the carrier frequency of a modulated signal sampled from the output of an RF transmitter. The conversion provides a replica of the modulated signal at a predetermined center frequency without regard to the selection of a transmitter channel or to the modulation technique used. The replica is presented to a demodulator which provides an information signal suitable for monitoring the quality of modulation of the transmitted signal. (Author)

Descriptors :   *Patents, *Radio transmitters, Modulation, Radio signals, Monitors, Bandpass filters, Demodulators, Mixers(Electronics)

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE