Amateur radio, also known as ham radio, is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication. The term “amateur” is used to specify “a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;”[1] (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.).

The International Day of Human Spaceflight (#ARISS #ISS #SSTV)
Saturday 12 April is the International Day of Human Space Flight. ARISS have created another series of 12 images in their SSTV activity periods entitled “Humans in Space”. Can you catch them all? […]