Chinese farmers set up an unauthorized device for jamming GNSS signals, as is reported by South China Morning Post.
The device was intended to fight criminal-operated drones to release substances contaminated with African swine flu on Heilongjiang Dabeinong Agriculture & Pastoral Foods.
The aggressors planned to buy low-priced tainted pig meat and resell it as wholesome at a market price. The device has been discovered after several aircraft flying over the farm complained about losing GPS signals. In some cases, the on-board ADS-B system failed to determine coordinates. Chinese authorities have decided not to penalize the farmers. The device was turned off.
ADS-B — Automatic dependent surveillance-broadcast. This system allows pilots and dispatchers to obtain traffic information and determine aircraft position relative to other planes and objects.
The Chinese jammer exhibited an impressive capability!