Foreign AM Broadcast Band DX: Circa 1970's

Many thanks to SRAA contributor, Dan Greenall, who shares the following recordings and notes:Foreign BCB DX 1970'sReception location: Ancaster, Ontario, CanadaReceiver and antenna: Hallicrafters S-52 or Realistic DX-150A and a longwire antennaNotes: Although I did not focus much on foreign broadcast band (medium wave) DXing in the 1970's, I did manage to save a few brief recordings of a handful of stations logged from my location in southern Ontario, Canada.1. Radio Margarita, La Asuncion (Isla Margarita) Venezuela 1020 kHz2. Radio Clarin, Santo Domingo, Dominican Republic 860 kHz3. XEMO, Tiajuana, Mexico 860 kHz4. Radio Sutatenza, Bogota, Colombia 810 kHz5. XERF, Ciudad Acuna, Coahuila, Mexico 1570 kHz (ID given by well known personality Paul Kallinger)