JAMMING METHOD AND DEVICE Russian patent published in 2013 - IPC H04K3/00 

FIELD: radio engineering, communication.

SUBSTANCE: resultant interfering signal is generated in a given region and eigen coordinates are measured. Composition of the orbital group of the global navigation satellite system used in the region and the number of properly functioning satellites are determined, while simultaneously receiving signals with navigation messages transmitted by the properly functioning satellites for all users of the global navigation satellite system in the region. The received messages are stored; navigation messages therein are distorted, after which a resultant interfering signal is generated in form of a plurality of signals with distorted navigation messages; the resultant interfering signal is synchronised with signals of navigation messages of satellites of the global navigation satellite system; the resultant interfering signal is emitted with power higher than that of legitimate signals of the satellites of the global navigation satellite system, wherein during prolonged operation, stored navigation messages are periodically updated.

EFFECT: concealed distortion of navigation parameters for radio navigators of a group of users located in a spatially limited but known region.

2 cl, 12 dwg