5 JANUARY 1929, Page 7

The announcement that British broadcasting stations will adopt fresh wave-lengths

on January 13th need came no concern among the wireless enthusiasts. No change will be necessary in the existing receiving sets. On the contrary, there should be general satisfaction at the latest development of European broadcasting, of which- this is the outcome, for it illustrates on a minor scale the process that is going on quietly at Geneva of organizing the world for peace. A " war in the air " has, in fact, been arrested by international co-operation. -For some time the technical committee of the Inter- national Wireless Union has been investigating the • problem of interference in the ether, from which relay stations in this country, especially, have suffered. By its original Plan de Geneve (1926) this body allotted to each nation a certain number of exclusive wave-lengths, out of the- hundred or so available, and also certain common wavelengths.