FAA to not allow 5G devices on airlines

“In an auction of radio spectrum last year, the major telecoms paid a total of $78 billion in an FCC auction to get access to a thin slice of the finite range of available radio frequencies to carry 5G signals. Those signals will be in the 3.7 to 3.98 GHz part of the so-called C-Band, which is apparently the sweet spot for carrying the data-heavy 5G signals. Radar altimeters operate in the 4.2-4.4 GHz frequency range (their sweet spot) and the fear is that the nearby powerful cell signals will cause interference for the avionics. The FCC approved the use of the spectrum for 5G saying “well-designed [radio altimeter] equipment should not ordinarily receive any significant interference (let alone harmful interference).…”