Letting prisons jam contraband phones is a bad idea, phone companies tell FCC: “Jamming will block all communications,” including 911 calls, CTIA tells FCC.
GPS is vulnerable to jamming—here’s how we might fix it
Engineers turn to quantum tech to replace GPS in flight navigation | Quantum sensing uses Earth's natural magnetic fields, making it immune to jamming and spoofing
Jamming: Polish researchers suspect GPS jammers on ships in the Baltic Sea
