Lots and lots of logs:
6990 LSB - Spanish
6977 LSB - Spanish
6965 LSB - Portuguese
6950 USB - Spanish
6930 LSB - Portuguese
6925 LSB - Portuguese (very active)
6919 LSB - Portuguese
6915 LSB - Portuguese
6910 LSB - Portuguese
6905 LSB - Spanish
6900 LSB - Spanish (net - very active)
6895 LSB - Spanish (appears to be alternate freq for 6900 LSB)
6868 LSB - Portuguese
6852 USB - Spanish
6805 LSB - Portuguese
6792 LSB - Portuguese (very active)
6771.5 USB - Spanish (with QRM from 6770 kHz AM)
6760 USB - Spanish
6750 USB - Spanish