Show I 1 RADIO SPARKS 4 I I i 9 Mining officials are considering the possibilities of ot radio as a life Ilfe saver Beside Deside the lantern atop the miners miner's cap may eventually be a miniature ture radio set up especially specially for the the purpose of sending out special danger signals At the mouth of the mine a powerful radio receiving set only catch the 1116 sIgnals but Ete locate the exa exact point of danger Radio engi engi- rs see ste tho possibility of s such ch an ar- ar I u n I C C C i Secretary Of Commerce Hoovers Hoover's I force of ether cops may take the form of special government detecting detecting- stations where aerial compasses win will be bo put to use Thes These compasses could be arranged so as to detect the direction direction tion from Which wv e une By a series of relays the government station nearest the violating amateur could b ba be notified and the source of the trouble stopped The Canadian government Is consid ering the question of the amateur radio field Present plans are to allow the amateur using spark a wave length up to meters while I those using using- continuous wave sion would be permitted a a wave wave- wavelength length I up to meters meters I The cage antenna Is said to be main main main- tamed at some stations merely as military expediency The They both both withstand with with- a stand bo bombardment by enemy |