A test transmission from Shortwave Service (www.ShortwaveService.com) consisting of voice, music and continuous tones. The radio DSP Noise Reduction circuit is turned on and off during the recording to reveal the raw signal and to get clarity on some of the announcements.
Recorded by Mark Hirst, courtesy of the Shortwave Radio Archive.
Part of the Shortwave Transmissions project, documenting and reimagining the sounds of shortwave radio - find out more and see the whole project at https://citiesandmemory.com/shortwave
