* a source of ongoing investigation and innovation in radio communication
* a way of drawing people into a technical activity which can result in them pursuing a career in engineering, so enhancing the technical skill base of the United Kingdom
* a source of emergency communications at times when conventional communications links are strained or out of action
* a contribution to international friendship
* a rewarding and challenging leisure activity
Source: OFCOM
Tnx @Fabio IZ5XRC for the hint!