The film was most likely made by wealthy amateur enthusiasts.

This was started as a private network by a small group of amateur radio enthusiasts, around April 2002.

However, its roots go back further to amateur radio enthusiasts.

Throughout its history, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services.

The very high quality of the tape recordings also seems to rule out amateur enthusiasts.

He enjoys reading science fiction and is an amateur radio enthusiast.

Since the 1970s, some amateur radio enthusiasts have experimented with mechanical systems.

More than anything, Jarmusch is a sort of focused amateur enthusiast.

The study collated more than 1.5 million records from scientists and amateur enthusiasts since 1670.

It's just me, being an amateur enthusiast about that subject.