I monitored on the SDR-IQ and Wellbrook ALA1530. Tried again this morning but did not hear anything from Africa, however could hear Brisbane quite well. I also heard Mauritius working but they were much weaker.
Here are a few other logs for the activity heard on 8879 yesterday morning.
8879 USB 1354z: Reunion 372 wkg Beira Radio w/ position report. Boeing 737-500. F-ODZJ. Johannesburg to Saint Denis de la Reunion.
8879 USB 1417z: Singapore 479 wkg Beira Radio. Selcal KRAD. Boeing 777-200. 9V-SVI. Johannesburg to Singapore.
8879 USB 1426z: Mauritius 34 wkg Beira Radio. Airbus A340-300 en route from Mauritius to Paris-CDG.
8879 USB 1450z: JetStar 115 clg Brisbane and told to come up on 5634. Airbus A320 en route from Jakarta to Perth.
8879 USB 1452z: Springbok 191 wkg Beira Radio. Selcal CEDJ. Boeing 737-800. ZS-SJM. Mauritius to Johannesburg.