This is my first catch of Undercover Radio. Broadcasting voice with background theme music talking about 20th year anniversary of Undercover Radio? Also said they are running 1000 watts of power.
Started tuning in around 0315 UTC. Signal fading in and out but able to make out most of the audio when listening in USB to keep the hash out from adjacent stations.
This happens to be the very first mediumwave pirate I have ever heard and have been wanting to hear for some time now. Probably helps I am using the very same antenna to receive this as I do to broadcast on mediumwave myself