The prohibitions and regulations kicking in at WWI which should in a way never be lifted afterwards, only strengthened, would stop artists from making their own signals and therefore take away a great deal of autonomy from what 'radio artists' could do. The importance of making one's own signal is underpinned by the work of the Japanese artist Tetsuo Kogawa who, in the 1980ies, was the founder of a MiniFM movement of people building their own transceivers from cheap electronic parts.