WQHK

AM 1380 WQHK was a Country station in Ft. Wayne, Indiana from 1979 until 1995.

More Wilds

 "Wild 95.3" CKWD - Calgary, Alberta

 "Wild 96.7" WDLD - Halfway, Maryland

 "Wild 104" KBFM - Edinburg, Texas

"Wild 95.5" WLDI - Juno Beach/Fort Pierce, Florida

KFSD

"Premium 92.1" KFSD was an Alternative Rock station in San Diego, California

WCRK

A t-shirt from AM 1150 WCRK in Morristown, Tennessee.  They currently carry a Classic Hits format branded to their translator frequency of 105.7 FM (and borrowing the logo from New York City's WCBS FM).

KXWA

A magnet from 89.7 Way-FM in Loveland, Colorado.  They are also heard on translator 90.9 FM K215CB licensed to Colorado Springs.  They are part of the Way-FM network of about 14 full power FM stations as well as many lower power repeater stations across a dozen states.  Stuff from another WAY-FM affiliate can be seen here.

Mixes

 "Mix 106" KCIX - Boise/Garden City, Idaho

 "Mix 100.5" WVOR - Rochester, New York

 "Mix 99,7" CHJM - Saint-Georges, Quebec

"Mix 106.7" WMHX - Hershey, Pennsylvania

Radio Oxigen

Radio Oxigen once graced the airwaves of Istanbul, Turkey with new music including drum & bass, electronica and hip-hop.  They broadcast during the 1990s but left terrestrial radio to go online only (although they may have stopped doing that as well...hard to say.)

Antenne Dusseldorf

Antenne Dusseldorf went on the air in the western German city of Dusseldorf in 1990.

Froggys

 "Froggy 99.9" KVOX - Fargo, North Dakota

 "Froggy 103.5" KFGI - Brainerd, Minnesota

"Froggy 98" WFGY - Altoona, Pennsylvania

 "Froggy 99.9" WWFG - Ocean City, Maryland

"Froggy 103.7" WFGS - Murray, Kentucky

"Froggy 92.9" KFGY - Santa Rosa, California

KEXP

90.3 KEXP is public radio station in Seattle, Washington that carries an Alternative/Indie Rock format.  They originally went on the air as the University of Washington-affiliated KCMU
which was the first station in the world to broadcast CD-quality sound over the internet 24/7.  They became KEXP in 2001 after partnering with the Experience Music Project (now called the Museum of Pop Culture) which was established by Microsoft co-founder Paul Allen,

KEXP partnered with WNYE to produce and program shows for listeners in New York City.  The joint venture lasted from 2008 until 2011.

WXGT

"92X" WXGT was a Top-40 (later a "Rock 40") station throughout the 1980s in Columbus, Ohio.

WKTT

"Live 97.5" WKTT is an Urban Contemporary station licensed to Salisbury, Maryland. 

WGHR

WGHR was the online radio station at Southern Polytechnic State University in Marietta, Georgia.  They began as a low-power, carrier-current AM station in the late 1960s and eventually moved to FM by the early 1980s.  Terrestrial broadcasts ceased around 2003 and they moved to online only.  SPSU merged with Kennesaw State University in 2015.  KSU's student-run, online station is known as Owl Radio.

WBUZ

1570 AM WBUZ was on the air in Fredonia, New York from 1957 until 1991.  Their FCC license renewal problems began in 1981 with the owner's alleged blatant discrimination against an African-American woman who applied to work as a secretary as well as his refusal to grant equal time to opposing views surrounding local police and public housing.  A few years later the American Society of Composers, Authors and Publishers revoked WBUZ's license to play songs by ASCAP artists due to the owner's defaulting on royalty payments.  Listeners also complained that contests were held but prizes never awarded or were kept by the owner.

KURE

88.5 FM KURE is a student-run radio station broadcasting from Iowa State University in Ames, IA.  They went on the air in 1949 as KMRA and went through a host of other call letters including KMRI, KISU, KPGY and KUSR before becoming KURE in the mid-1990s.  It's unclear if the station was named for the band of college radio faves with (almost) the same name or if they had nothing to do with it.
KURE has an event called Kaleidoquiz which they've held every year since 1967.  KQ is a 26 hour marathon trivia contest which now encompasses scavenger hunts, murder mysteries, physical puzzles, photo/video challenges and prize giveaways all taking place while a new question is asked every 6 minutes.  Teams are scattered around campus listening to KURE for trivia questions and instructions. 

KRCL

Community radio station KRCL in Salt Lake City, Utah went on the air in 1979.