What is 5G?
Radio waves are all around us. They emanate naturally from outer space (the sun, stars. quasars, and galaxies). Closer to home, man-made radio waves bombard us daily: GPS satellite signals to help us navigate around town, AM/FM radio stations, 8 million Wi-Fi transmitters, and 350 million cell phones transmitting and receiving radio signals to/from cell towers to deliver text messages and phone calls. Electromagnetic radiation is how nature distributes energy, the most significant being the radiation that our eyes can see — the visible spectrum. The rest our eyes cannot see, but our electronics are tuned to for daily uses (AM/FM, baby monitors, cell phones, GPS devices).
All services must operate at their specific frequencies so transmitters and receivers can communicate at “the same wavelength.” Police cars and dispatch stations must transmit and receive at specific frequencies so they can hear each other. Our cars’ FM radios must be tuned to the same frequency at which radio stations are transmitting.