Through their collaborative efforts, the owners of the channels bought imported content together and used the microwave network supplied by telecommunications company COMTELCA that was shared between the countries.
[1] As of October 1987, the network consisted of the following members: Nicaragua had been suspended at the time because the channels Sacasa owned (2 and 12 and their respective relayers 7 and 5) had been usurped by the state in 1979, forming Sistema Sandinista de Televisión.
Per a session held in San José, and following the Esquipulas II agreement, ATELCAP demanded the return of the channels to their rightful owner, enabling the country to enter the network.
[2] Both Televicentro and the state channel of Nicaragua joined ATELCAP in 1992, in order to combat piracy of international television content, stemming from the rise of satellite dishes.
[3] On December 1, 2006, ATELCAP and ASDER held a joint forum for the then-incoming arrival of digital terrestrial television in the region, and what should be done at the long term.