Many thanks to SRAA contributor, Jim Jordan, who shares this three part recording of Radio Polonia and notes:

After the declaration of martial law in Poland on December 13, 1981 Radio Polonia ceased broadcasting. Broadcasts in English instead continued from a military base near Warsaw Airport. The staff of Radio Polonia returned to the air soon afterwards and here are three broadcasts from that period in Poland's history. Of some of the presenters that you will hear, Konrad Gocman is in retirement and works as a translator. However Benny Ludkiewicz (aka "Bengt Scotland") unfortunately passed away a couple of years ago. Anyone who is interested in the old North American service from Warsaw may like to read have a read of this. The writer used to work with the late Sol Flapan and his wife Anna, who used to deal with the English section's correspondence right up until the 1990s http://www.tc.umn.edu/~marqu002/Chap10.pdf

Jim made the following recording in South Shields, UK, using a National Panasonic RF2200 and a random long wire on 6.135 MHz: