The only thing I can think of is that they may have tweaked with their antenna, but they can't boost their power. Since they signed on under the current rules, they have to protect WTKM Hartford on 104.9, plus they have to protect 1st adjacent WOJO 105.1 Evanston/Chicago IL. I remember numerous times in Milwaukee and nearby south suburbs, I could still get 105.1 from Chicago, and it would at times bleed over onto 105.3. Maybe they got their transmission tweaked just right.