"Digital Radio Mondiale announced that the Emergency Warning Features of the DRM system would be featured in a broadcast included in the International Radio for Disaster Relief Trial (IRDR) Trial to coincide with the Media Summit on Climate Change to be held June 4–6 in Jakarta, Indonesia"...
June 5-6 15650kHz (BBC/Babcock) 0300–0330, 0400–4300, 0500–0530 UTC
UPDATE: 20140601 Special transmissions in English or Mandarin targeting Indonesia (in UTC) on June 5-6, 2014 (unknown if these are all DRM):
0200-0230 ABC Radio Australia, Shepparton - 21840 kHz
0230-0530 BBC, Nakhon Sawan, Thailand - 15650 kHz
0500-0530 R Vatican, Santa Maria di Galeria - 21840 kHz
0530-0600 Sri Lanka BC, Trincomalee - 15650 kHz
0600-0700 First Response Radio via FEBC, Philippines - 15650 kHz