Mike, Are you noting any improved signal strength on 39.04 in your neck of the woods? You are reasonably close the the barrack, so you've probably always had a pretty good read on it. I certainly have noted a significant boost on my S-meter, consistently, for over a month now (and not on any other regional MSP freq). This is the case for all transmissions (at least the ones that I can hear), making me think it is less likely to reflect the barrack simply selecting a tower from a different location on occasion.