The Norwegian Telegraphy Administration started examining the question of radio broadcasting in 1922. After consulting other countries, it recommended that the government own and operate the transmission infrastructure. In 1923 Norway abolished its earlier ban on listening to foreign radio stations without a permit. At the same time, the obtaining of a licence to transmit was made a legal requirement.Espeli: 165 Several companies had already banded together in 1922 with a view to obtaining permission to broadcast. The financing of their broadcasting operations was to be based upon a combination of the revenues obtained from on-air advertising and the licence fees payable by those purchasing and owning a radio set. In a bid to avoid some of the problems that had arisen in the United States, the administration tried to restrict the extent to which the manufacturers of radio sets could also own broadcasting stations.Espeli: 166
