Here is another batch of shortwave recordings from the past. Among the interesting clips are couple from Radio Free Grenada. The Caribbean country was controlled by a left-wing government from 1979 until 1983, when American forces invaded the island.
There is a clip from Radio Station Peace & Progress - the Voice of Soviet Public Opinion, from the USSR, which dominated the shortwave bands during the Cold War.
Radio Cairo: Sign on
Radio Polonia: Sign on
Radio Free Grenada: IDs
Radio Nacional Brasil: Sign off
Voice of Nigeria: Sign off
Radio Tashkent: Sign on
Radio Canada Int: Sign off
Radio Free Grenada: ID, sign off
Radio Pakistan: Sign on and off
Radio Station Peace & Progress, USSR: Sign on
Radio Portugal: Sign on & off
Here's the link: https://www.mixcloud.com/shortwave_listener/shortwave-radio-in-the-1980s-2/