I used to work on Radio Row in Houston. One day the FCC came to visit KILT
FM 100.1 because they were causing squeals on the aeronautical band. It
wasn't any of the station's pro gear making the interference; it was an
old console FM receiver in the station lobby. 100.1 + 21.4 = 121.5. Radio
row was on the direct approach to Hobby Airport or this old mis-aligned
radio would have never been busted.


I can understand the authorities getting a bit ansty about that one. 121.5
is the international aeronautical VHF distress frequency ... :-)

Arfa