KOA could be heard well in Minnesota pretty much anytime after the sun went down. Their 50,000 watt non-directional signal on a clear channel meant you didn’t need much to pull it in. I recorded this brief aircheck clip as part of a routine dial scan.
Reception was made using a Pioneer SX-3900 receiver and horizontal longwire antenna. The recording was made with a Technics stereo cassette deck and Scotch Dynarange tape.