Many thanks to SRAA contributor, Richard Langley, who notes:
Live hour-long recording of the "last" Radio Spaceshuttle International broadcast on 20 September 2015 beginning at 19:00 UTC on a frequency of 13600 kHz. The broadcast was from the Kostinbrod (near Sofia), Bulgaria, transmitter site. The transmitter power announced during the broadcast was 100 kW. This is consistent with the HFCC (High Frequency Coordination Conference) registration of the 13600 kHz frequency by Spaceline, Ltd., the airtime broker for shortwave transmissions from Kostinbrod, between 10:00 and 20:00 UTC. The registered antenna beam direction is 195 degrees.
Reception was poor to fair with some interference from Radio Martí on 13605 kHz and the Cuban jammer aimed at it. The broadcast, compered by "Dick Spacewalker" and originating in Finland, consisted of pop music and acknowledgements of listeners' reports. The language used is mostly English with some Finnish and Japanese announcements. The broadcast begins anomalously at 19:00:11 UTC with a sign-on announcement from the Overcomer Ministry (also a user of the Kostinbrod facility) and a wrong announced frequency. The Radio Spaceshuttle International program begins about 1m:20s later.
The broadcast was received on a Tecsun PL-880 receiver with a Tecsun AN-03L 7-metre wire antenna outdoors in Hanwell (just outside Fredericton), New Brunswick, Canada, in AM mode with 3.5 kHz RF filtering.