Estonian officials said Russia has bolstered its electronic warfare systems near its border with the Baltic country.
The Russian army brought additional signals jamming equipment to the area around Kingisiepp, a town around 20 kilometers (12 miles) from the Estonian frontier, Interior Minister Igor Taro said at a press conference in Tallinn.
…
Such equipment has been used on the battlefield in Ukraine to disrupt drones’ navigational signals. However, electronic warfare also causes severe interference to the Global Positioning System, or GPS, used by commercial airplanes and ships.
…
Being on the ground, they’re a lot closer to the GPS receivers and basically overpower the real signal that has to come all the way from space. Satellites also have to very careful with their power use, so counter-jamming that method would be almost impossible.
You could install your own ground stations, but then it becomes a game of who has more electricity to burn.
Edit: Better antennas can help, but get very expensive very fast. Since they’re really just adding more and more and more antennas.
The nice thing about jammers is that they’re basically giant homing beacons though. Unfortunately, using them as such is pretty much an act of war.
Which is the whole point: provocation.
Oh no doubt. They’re just baiting a response so they can play the victim again.