Many thanks to SRAA contributor, Tom Gavaras, who shares the following recording and notes:

Radio Nethlerlands shortwave broadcast to Africa recorded in 1975 on 17.810 MHz at 1830 UTC. Transmission opens with a unique trumpet/drums interval signal, singing station identification/jingle, and announcements in the French language.

Rough translation: "This is Radio Netherlands, Hilversum, Holland broadcasting on 16 meters, 17810 kHz." [Singing jingle] "You are listening to the Netherlands Global Radio Network, Radio Netherlands, Hilversum, Holland. Good morning, good afternoon or good evening, according to where you are receiving our signal right now. We are going to spend the next 80 minutes together, and we invite you to listen to our show in the French language."

Starting time: 1830 UTC

Frequency: 17.810

RX location: Plymouth, Minnesota

Receiver and antenna: Hammarlund HQ-180, longwire