The ESEO AMSAT UK Payload is an education and communications system that can be used by students and amateur radio users around the world. It performs digital signal processing to communicate with both the ground and subsystems on the spacecraft, and offers a real opportunity for schools, colleges, and universities to develop their understanding of science and engineering. It can also be used as a regular voice transponder for amateur ‘ham radio’ users, and builds on the concept started with the FUNcube-1 CubeSat.