Established in 1977 when two radio amateurs decided to go professional.

It is therefore widely used by radio amateurs with limited space.

Such an arrangement is used occasionally by military agencies or radio amateurs.

At the same time they communicated with fellow radio amateurs who wanted to contact a new country.

Although now discontinued, it remains a favorite among radio amateurs.

There is a broad range of hardware solutions for radio amateurs and home use.

States offer these special plates in appreciation of the contributions to public service by radio amateurs.

Among radio amateurs and ham operators, these became known as numbers stations.

In the late 1970s they were being used by some radio amateurs in Britain.

It is allocated to radio amateurs worldwide on a primary basis.