Accession Number : ADD007721

Title :   Method of and Apparatus for Transmitting Clandestine Radio Signals.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Skudera,William J ; De Santis,Charles M ; Ikrath,Kurt

Report Date : 09 Oct 1979

Pagination or Media Count : 8

Abstract : Clandestine signals are transmitted by using a surface wave acoustic device to disperse the spectrum of a pulse-modulated CW carrier. The dispersed signal is itself modulated and then transmitted to a remote location, at low level. At the remote location, an acoustic device of conjugate characteristics is used to recover the dispersed signal from out of the background noise. (Author)

Descriptors :   *Patents, *Radio equipment, *Secure communications, Continuous waves, Acoustic waves, Surface waves, Low level, Background noise

Subject Categories : Cybernetics
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE