Here outside of Duluth, MN, 103.9 MHz is one of my best DX frequencies.
Most of the time there's weak KZJK IBOC, which I can usually get an audio decode on at least summer nights. Also to the south, W280DF, 55 miles away, which always comes in. To the east, there's W280DD, Ironwood, MI. Despite running only 10 watts and being 104 miles away, this is a frequent catch which actually might always "be there" in the absence of tropo, due to a very favorable path which runs along the Lake Superior shoreline. Lake Superior actually provides a path which must compare to that provided by the Pacific Ocean; along Skyline Parkway in Duluth, another 88.3 LPFM station from there is sometimes audible in places (vertically polarized), and along the North Shore U.P. stations always come in.
To the west, there's KBHL 103.9 from Osakis (148 miles), usually weakly audible, enhanced during good tropo conditions. To the south, there's KLCX 103.9 Eyota (Rochester), MN, which despite running 1.3 kW from 188 miles away, was a regular in 2008. WVBO Winneconne, WI (259 miles) sometimes comes in, as does KUOO Spirit Lake, IA (269 miles), especially when summer "southwestern" tropo is up, during which it often booms in like a local. WWYW from Dundee, IL, at 375 miles, came in once (July 21, 2011). KNZA, Hiawatha, KS, at 523 miles, was first logged on July 31, 2011 via tropospheric ducting, and was a frequent visitor from then on. One of my most distant tropo logs, KKIX from Fayetteville, AR, was logged on August 26, 2011 at 749 miles during an incredible tropo opening to Missouri, Arkansas, Kansas, and Oklahoma (with tropospheric ducting to Southeastern Tennessee apparent on the APRS map, though not on the FM dial). Finally, I've logged quite a few stations via Es on that frequency; KCJF from Earle, AR on July 10, 2008; KZMN from Kalispell, MT on June 18, 2010; WOCQ from Berlin, MD on July 15, 2006 (and quite a few other times if my memory serves me right), KTHP from Hemphill, TX on June 2, 2010; WHXT from Orangeburg, SC on June 18, 2010; WTYB from Tybee Island, GA, first on July 22, 2008; and KEDJ from Gilbert, AZ, at 1,373 miles, on June 15, 2008. There was (still is?) also a low-power relay of a pirate called "Liquid Radio" broadcasting from Cloquet, MN, which is about 10 miles away from me. So, 18 stations total logged on that frequency.
