La 97 FM

La 97 FM is a hit music station from Mar del Plata, Argentina.

Radio Del Mar

Radio Del Mar broadcasts from the city of Comodoro Rivadavia in the Chubut province of southern Argentina. I received this sticker from them in 2004 but it appears they've moved up the dial to 98.7 FM since then. Their format seems to be heavy with News/Talk and some music programming. Google Translate says their "programming is done for all tastes, ranging from information through music, politics, sports and programs with their own opinions."

Cadena 100

Tough to find much info about this station.  I think Cadena 100 is (or was) a group of stations spread around Argentina that plays popular music.  There is currently a Cadena 100 at 99.9 FM in Buenos Aires but this particular station is from the city of Rosario.