I primarily use my portable radios for DXing on shortwave arms for listening to sports, talk and music on AM and FM. But I notice that my Tecsun PL-660 has air band on it. I’m a lifelong aviation fanatic, but until now I’ve never tried to listen to anything on air band. Does anyone have any advice on where to start? Alas, I’m not near a major airport. Two regional airports are within 20 miles, though.