Northrop Grumman Systems Corporation

Robert Edward Rozak

Warren E Guthrie

Thomas E Szmurlo

A remotely operable radio frequency jamming device having a jamming transmitter and a local controller in communication with a remote commander. The local controller has a signal receiver and decoder component for receiving, decoding and causing by electronic command the device to perform a remotely initiated instruction signal. In particular, the receiver and decoder component of the local controller can receive and decode a remotely initiated instruction signal to activate or inactivate the jamming device and thereafter cause by electronic command the activation or deactivation of the device. To effectuate the jamming of enemy radio signals, the receiver and decoder component of the local controller can receive and decode a remotely initiated instruction signal to transmit a selected jamming band from the transmitter of the jamming device, and thereafter cause by electronic command the transmitter to transmit the selected band. The jamming device preferably is operable on low power, and preferably is relatively small so that its presence can be relatively easily hidden.

Remote controlled noise jamming device

A translator for translating GPS signals received at one location to a different frequency for ground transmission to another location uses a spread spectrum pilot tone for phase-locking the local oscillator of the ground transmitter to that of the ground receiver, thereby increasing security, enabling use of otherwise unavailable frequency spectra, allowing coherence of pilot tone and GPS signal with small coherence bandwidths, and allowing interference-free transmission of the translated GPS signal and pilot tone with the same center frequency.

Growing community of inventors

Evanston, IL, United States of America

Robert Edward Rozak