Details of the program are here:
Perhaps for variety you can turn an interference-generating appliance and see how the MFSK cope with electrical noise.
VOA Radiogram transmission schedule
(all days and times UTC)
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.
The Mighty KBC will include MFSK text and an image during its transmission to North America 0000-0200 UTC on 13 October 2013 (8-10 pm EDT Saturday evening) on 7375 kHz (via Germany). The MFSK will be at about 0130 UTC, centered on 1500 Hz.