I heard these stations in Mackinaw City in August, 2004 and again in 2005. Most can be heard in the center of the state in Higgins Lake, where I was in September of 2006.
Longwave: 215-PZQ, Rogers City 218-DRM, Drummond Island 392-CVX, Charlevoix
Mediumwave Broadcast: 570-WMAM, Marinette, WI 2029 17 Aug 04 (sports) 580-WTCM, Traverse City 2029 17 Aug 04 (talk) 600-WCHT, Escanaba 1405 18 Aug 04 (news/talk 680-WDBC, Escanaba 2154 16 Aug 04 (standards) 750-WWKK, Petoskey 2200 16 Aug 04 (talk) 790-CIGM, Sudbury, ON 1357 18 Aug 04 (talk, music) 940-WIDG, St. Ignace 2200 16 Aug 04 (sports; see Mysterious Logs below) 980-WCUB, Two Rivers WI 2145 16 Aug 04 (country) 1110-WJML, Petoskey 2106 16 Aug 04 (talk) 1210-WLDR, Kingsley 2121 16 Aug 04 (classic country) 1230-WSOO, Soo 2038 17 Aug 04 (middle of the road) 1240-WCBY, Cheboygan 2122 16 Aug 04 (standards) 1270-WMKT, Charlevoix 2132 16 Aug 04 (business) 1310-WCCW, Traverse City 2126 16 Aug 04 (sports) 1340-WMBM, Petoskey 2110 16 Aug 04 (standards) 1360-WVRQ, Viroqua, WI 0221 16 Aug 04 (oldies) 1370-WLJW, Cadillac 2128 16 Aug 04 (religion; affiliated with WLJN) 1400-WKNW, Soo 1500 18 Aug 04 (talk) 1400-WLJN, Traverse City 2110 16 Aug 04 (religion; affiliated with WLJW) 1450-WNBY, Newberry 2108 16 Aug 04 (country) 1490-WTIQ, Manistique 2107 16 Aug 04 (oldies)
Mediumwave-Traveler's Information Stations (TIS) 530 WNHC787 St. Ignace 2000 16 Aug 2004 (//1610 Mackinaw City) 1610 WHNC787 Mackinaw City 2000 16 Aug 2004 (// 530 St. Ignace)
VHF-FM Broadcast: 88.1-CBON, Soo, ON 0024 19 Aug 04 (French) 88.5-WDQV, Mackinaw City 1559 17 Aug 04 (contemporary Christian; now WIAB) 88.5-WIAB, Mackinaw City 0020 19 Aug 04 (classical; Interlochen; ex-WDQV) (1) 89.3-WTLI, Boyne City 0030 19 Aug 04 (contemporary Christian) 89.5-CBSM, Soo, ON 0045 19 Aug 04 (Radio 1/CBC) 89.9-WHWG, Trout Lake 1500 17 Aug 04 (religion) 90.5-WPHN, Gaylord 1501 17 Aug 04 (religion) 91.7-WCML, Alpena 1505 17 Aug 04 (classical; Central Michigan Univ.) (2) 92.5-WFDX, Atlanta 1600 19 Aug 04 (rock) 92.9-WJZQ, Cadillac 1600 19 Aug 04 (elevator music) 93.5-WBCM, Boyne City 1537 17 Aug 04 (country) 93.7-WNBY, Newberry 1605 19 Aug 04 (light rock; not //1450) 93.9-WAVC, Mio 1505 19 Aug 04 (country) 94.5-WLJZ, Mackinaw City 1700 17 Aug 04 (rock) 94.9-WKJZ, Alpena 1601 19 Aug 04 (classic rock) 96.3-WLXT, Petoskey 0000 19 Aug 04 (rock) 97.5-WKLT, Kalkaska 1700 17 Aug 04 (rock) 97.9-WIHC, Newberry 1600 17 Aug 04 (rock; //105.1 WGFM Cheboygan) 98.3-WCMZ, Soo 0248 20 Aug 04 (Central Michigan University) 98.9-WKLZ, Petoskey 1600 17 Aug 04 (heavy metal) 99.5-WYSS, Soo 0300 20 Aug 04 (rock) 99.9-WHAK, Rogers City 0001 19 Aug 04 (oldies; not//960) (3) 100.5-CHAS, Soo, ON 1702 20 Aug 04 (lite rock) 100.7-WKVK, Honor 2200 17 Aug 04 (rock; //106.7 WKPK Gaylord) 100.9-WICV, East Jordan 0020 19 Aug 04 (//89.7 WIAA Interlochen Arts Academy) 101.3-WSUE, Soo 0000 19 Aug 04 (classic rock) 101.5-WMJZ, Gaylord 1700 19 Aug 04 (oldies) 102.9-WMKC, St. Ignace 1602 19 Aug 04 (country) 103.9-WCMW, Harbor Spr 1700 17 Aug 04 (Central Michigan University) 104.3-CJQM, Soo, ON 1705 17 Aug 04 (country) 105.1-WGFM, Cheboygan 1700 19 Aug 04 (classic rock; //97.9 WIHC) 105.9-WKHQ, Charlevoix 2200 17 Aug 04 (rock) 106.7-WKPK, Gaylord 2200 17 Aug 04 (rock; //100.7 WKVK Honor) 107.9-WCZW, Charlevoix 1646 17 Aug 04 (lite rock) 1. See Interlochen listings below. 2. See CMU listings below 3. They ID their translator calls, W268AB 101.5, every hour. They no longer have this translator in 2007.
VHF-TV: 87.750-WCML, Alpena (Central Michigan University) 511.750-W20BZ, Escanaba (TBN affiliate)
VHF-Weather from Environment Canada and NOAA 162.400-Sault Ste. Marie, ON 162.425-WXN29, Sister Bay, WI 162.450-WNG576, Newberry 162.500-KZZ35, Escanaba 162.550-KIG74, Sault Ste. Marie
Mysterious Logs: 88.9-very weird tape loop without announcements. Creepy. It played what sounded like homemade New Age music. Heard in 2005. I don't recall this in 2004 but it's a difficult catch and I may have missed it. 161.730-marine band relay of 940, WIDG, St. Ignace. I also heard this in 2005. An Inaudible Mystery: 107.3 The 40 Mile Point Lighthouse (which is very weird and oddly quiet) has a sign posted at the entrance that says information is available on 107.3 FM. I didn't hear anything in 2004.
CMU Public Broadcasting has affiliates all over Northern Michigan and the Upper Peninsula. WCMU 89.5 can often be heard in Metro Detroit.
The university's stations are: WCMU-FM 89.5 Mt. Pleasant WUCX-FM 90.1 Bay City WCML-FM 91.7 Alpena WWCM-FM 96.9 Standish WCMZ-FM 98.3 Sault Saint Marie WCMB-FM 95.7 Oscoda WCMW-FM 103.9 Harbor Springs
Its television stations are: WCML Channel 6 Alpena WCMU Channel 14 Mt. Pleasant WCMW Channel 21 Manistee WCMV Channel 27 Cadillac. Also Channel 46 Traverse City and Channel 69 Leland.
Interlochen Public Radio has two services that can be heard all over Northern Michigan.
Classical Music: 88.5 WIAB Mackinaw City 88.7 WIAA Interlochen 100.9 WICV East Jordan News: 91.5 Traverse City