Last night around 11:30 pm while driving home from New Orleans I tuned in KTIB and noticed it was broadcasting in Stereo. It would go out when I would recive static from a power line then come back in all the way from Des Allemands to Galliano. I rechecked during the day at 10:00am but they were back Mono. Back when it was owned by La-terre They said they turrned the stereo generator off to have a better signal coverage. Is GAP starting to use the generator on the transmitter nightime only; will they go back fulltime stereo; or was it harmonics on 640 from another station? ???