As former TD/CE/OM ect. back in the late 80's I can tell you that in the public file is a reception report from New Jersey back when the station first moved from AM to FM, long before the other stations between here and there existed, I just wish the folks back in the 60's thought about the day when the station could have a chance to upgrade output power and order a transmitter with a higher output than the license so that when the other stations applied they would have a reason to deny instead of sitting back and letting it happen. (ok, I don't know that it happened that way, I hope it didn't). I'm glad that when the opening came along recejntly that WESU took it. It kind of justifys my choice in having selected a 5kW rig evern though we only needed a 1kW rig.
I have noticed the station does come in very clear with minimal static at Sonic in Wallingford, so I can understand a bit of splash on 88.3, but that is to be expected and honestly as close as I am to the tower, I would have expected much more adjacent channel and second adjacent channel noise, but I guess my car stereo has pretty tight selectivity as it's pretty minimal on 87.9 & 88.3 and I get no noise at all on either 87.7 & 88.5.
I have also heard that the station has heard from the New Haven area which it hasn't been heard too well since WMNR came along.