distance on a phone on an actual phone line, 5g is how we live our lives, right? we're streaming, using social media, the holograms at basketball games. this is the future. you're a pilot. how does this technology affect airplanes? >> yeah, you know, i want 5g, too, but it's important to know that this part of the 5g frequency band, the c-band right next door to the part of the spectrum used by a crucial device on airliners, the radar altimeter, it's designed to tell an aircraft how close it is to the ground when it's getting really close to the ground in really bad weather in particular. you need a couple of radar altimeters operating well on that proverbial dark and stormy night when you're flying in to land. and if it doesn't operate well, truly catastrophic things can happen. so, while it may be not a likely scenario, the airline industry is looking at a problem which