Bob, > I havent been paying attention to "Who's on first " > but who is sending G at 13.555 or so. Lots of QSB > so it is hard to see if there is more or not,,, but G > fer sure There's GA right around that frequency, and GG about 100 Hz lower. Both are from Quebec, and are listed on the LWCA Hifer list. They have good signals into MA, with some incredibly strong peaks at times. John Andrews