Pilots use radios in every phase of flight. When tuned to the desired frequencies, radios can connect pilots to dispatchers, maintenance, company operations, air traffic controllers, and even medical doctors on the ground. One challenge of such a heavy reliance on radio communication is keeping all the frequencies in an ordered manner so that they can be found easily. This article will identify many of the lesser-known communications pathways that radios offer pilots and discuss how pilots are trained to find these frequencies.