Elevator pitch:

Radio fax technology employs high-frequency radio waves to transmit black-and-white images. By encoding images as discrete audio tones, radio fax enables the wireless transmission of visual data. To capture this image, please configure your receiver to accept a WEFAX-IOC576 transmission at 240 lines per minute.

Notes:

https://renatura.bandcamp.com/album/re-natura-04-ther