It was transmitted from London and broadcast programmes of approximately 15 minutes.
It consisted of brief commentaries on current affairs and political speeches, as well as news on the Free Dutch Forces, colonies, and merchant navy.
Radio Oranje made its first broadcast on 28 July 1940, consisting of a rendition of the nationalist song Merck toch hoe sterck, followed by a speech by Queen Wilhelmina.
In total, Wilhelmina spoke on Radio Oranje 34 times during the course of the war.
The name, Radio Oranje, was a tribute to the Dutch monarchy's House of Orange-Nassau.