An FFGL effect that sends your clip as slow-scan television (Martin M1, Scottie S1 or Robot 36 tones) through an HF channel with noise, fading, multipath and interference, and paints whatever the receiver manages to decode, a line at a time. The slant from a receiver clock a few ppm out, the colour fringes on it, the noise streaks below the FM threshold and the smear all come from the chain running at 11,025 samples a second. None of it is drawn on top.
This demo runs the plugin's shaders and a port of its signal chain in your browser, so it needs JavaScript and WebGL2. The plugin itself, its source and its downloads are on its repository.