There are 98 records for 49 stations in the Region II Database, accessed through AMQuery using the TI callsign designation. This does not imply that the stations are still operating. TIGL is shown as 1 kW Day and 1 kW Night, 1 U1 in concise WRTH/DX nomenclature. It is the only allotment in Costa Rica on 1300. I'll look in my most recent copy of WRTH but it's pretty old.
https://transition.fcc.gov/fcc-bin/...&slat2=&NS=N&dlon2=&mlon2=&slon2=&EW=W&size=9
WRTH 2006 shows TILC 1300 Cartago with 7.5 kW. The email address shows
[email protected]
This page has more info. It says nothing about English, though from what I have read, there are some US business people (also news accounts of legal problems) operating in Costa Rica, so who knows.
http://radiostationworld.com/locations/costa_rica/cartago/radio_stations/
Format shows Music, News, Sports.