As the name suggests, Jamboree On The Air (JOTA) is way for guides and scouts around the world to meet by communicating over the radio waves, using amateur radio equipment, without the organisation and expense of travelling long distances.
The first JOTA was held in conjunction with 50th Anniversary of Scouting in 1957, after being devised by scout leader and amateur radio operator Les R Mitchell G3BHK.
Each year over the third full weekend in October, guides and scouts around the world use the various frequencies allocated to amateur radio operators, to exchange greetings and learn about each other. A international competition is held each year to design a JOTA blanket badge, which is available to all youth members participating in JOTA.