RHC in Arabic on 15140 kHz and unschedued 11760 Bauta, October 4

CUBA   Radio Habana Cuba in Arabic on 15140 kHz via Bauta and unschedued 11760 kHz via Bauta, October 4:
1800-1830 on 15140 BAU 100 kW / 340 deg to WNAm Arabic - unschedued. Weak/fair via SDR Frostburg MD, USA
1800-1830 on 11760 BAU 100 kW / non-dir to NCAm Arabic as scheduled. Very good via SDR Boca Raton FL USA
Each day, each hour, a different random combination. Something`s always wrong at Radio Habana Cuba / RHC
https://www.youtube.com/watch?v=F-VSYlUInjI&feature=youtu.be
https://www.youtube.com/watch?v=A8DKuQJFFwE&feature=youtu.be