Surging through the giant turbines of Boulder Dam, the Colorado River can now produce 1,240,000,000 kilowatt hours of electric energy per year which is piped 267 miles to Los Angeles over six hollow copper cables 11 in. in diameter. In an engineering enterprise of this magnitude unique solutions of special problems are likely to occur. One such solution publicized in Los Angeles last week was the way in which radio communication is maintained with the 14 repair crews which patrol the transmission line in automobiles.
No ordinary low-power, short-wave radio set could conceivably be...
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