Warren, copy your signal fine west of Chicago too. No squiggly noted here at the moment but I do see a "fast" sawtooth like Dex's capture shows briefly between 137.7775 abd 137.778 kHz. Mine is around 137.7795 kHz just below XGJ. Perhpas something local related to my ComEd power company. 73, Garry, K3SIW, EN52ta, Elgin, IL