Ni Oṣu Karun ọjọ 31, Ọdun 1989, ninu iwe iroyin osise ti ẹgbẹ naa, nọmba akiyesi gbogbo eniyan 46/89 ti ṣe atẹjade fun ilokulo iṣẹ igbohunsafefe redio ohun ni igbohunsafẹfẹ modulation (FM) fun agbegbe Castelo.
Ni Oṣu Keji Ọjọ 28, Ọdun 1990, a fun ni igbanilaaye si Rádio Cultura de Castelo FM Ltda., lati ṣawari awọn iṣẹ igbohunsafefe.
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