I go to NB often enough, and have noticed a few changes. These stations all seem to be run by the same guy. What he was doing with FM seems to be history (I guess getting a few NAL's from the FCC might have prompted this), and now he's doing the same thing on AM, bouncing around from channel to channel. The orignial location for the stations was on the roof of the restoration church on North Street, although I think the location might have changed as I heard mention of Sexton Street in one of the church's promos. I do still see the sign for the church back at the original location, so I guess I will have to check out Sexton Street next time I'm out there. He/they seem to run on 2 channels each time, as I've heard both 1700 & 1640 at the same time usually with sanish religion on one and spanish music on the other. If the station(s)/church have moved to Sexton Street, they are in a much higher location and litterally have clear line of sight to most of central CT (Clark Street is the next block over and a little lower, but from one backyard I did some work at, you could see dowtown Hartford and beyond)
FM history: 90.9, 92.9, 105.3, and maybe 107.5 (though this one seemed to be distant from downtown)
AM (I don't have 1710 in the car) 1700, 1640, 1620 and maybe 1690/1680