Inserts a 4-color text or graphic into a video signal.Amateur radio operators can use this for ATV (amateur television). It's necessary to transmit the callsign periodically. The Eprom has a capapaciy to store up to 128 callsigns. Every callsign consist of a 32x256 pixel graphic. This is special: It's also possible to use an animated logo with 16 frames.
Layout and software of a small variant of this logomat (without animation).
