R Caiçara, Porto Alegre, RS belongs to Rede Pampa de Comunicacão and used to transmit on 1020 AM up to November 1, 2013 when it switched to 780. The station was not an easy catch on 1020. I heard it during LEM330 in early March 2013 and at least Jari Ruohomäki and Pertti Äyräs have heard it earlier. A nice confirmation was received recently.
americadx 