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Radio Broadcast
INSTALLING A NEW ANTENNA FOR STATION WCG The New York coastal radio telegraph station of the Independent Wireless Telegraph Company. Many ships in the transatlantic and coastwise service communicate with this station, sending and receiving weather information and commercial messages. This station has a power of 3! kw. and will use wavelengths of 600, 706, and 2100 to 2400 meters
contributing cause was the wide circulation of the expression 'revolutionizing the radio industry.' When people heard it they immediately hesitated, as much as if to say ' If such wonderful things are going to happen, we'd better wait a while.' Most of them are still waiting and if they are going to wait until the industry is revolutionized, they will be waiting forever."
This opinion is a sound one and unquestionably founded on fact. A great many people actually have the idea that to-morrow a new set is to be put out which will eclipse anything at present on the market, and that the purchase of radio equipment obtainable to-day is a waste of money. So undoubtedly the apt phrase has boomeranged on the industry and made inactive a large part of the
prospective purchasers of radio equipment.
To one who has even casually looked over the development of radio during the past twenty-five years the idea of a revolutionary step is hard to grasp. There has never been any such step in so far as the technical progress is concerned. The Fleming valve, De Forest audion, and the concept of amplification and regeneration were all old in the art before the present radio public existed. And each of these came into being rather quietly; wonderful as they were, they inspired only moderate enthusiasm because those who appreciated their significance and value were so few. The super-heterodyne, conceived by Armstrong while working for the Government on radio development, and the neutralized amplifying receiver, first thought out by Hazeltine, Rice, and others, were both finished before the era of broadcasting even began.
If we look then for an epoch-making radio development during the past five years, the life of radio broadcasting, we really find none. Improvements there certainly have been, both in parts and sets, but nothing which has "revolutionized" the industry. The thoriated vacuum tube filament was a great advance over the pure tungsten filaments, which had been generally used in radio tubes, but even thoriated tungsten is not really a revolutionary step over the oxide-coated filament, itself older than the radio industry.
Probably the greatest recent advance in radio has been in the loud speaker and we all know that this development has been gradual enough; it has been evolution rather than revolution. A few scientists have, on occasion, been willing to announce to the press that they had conquered static, but even these venturesome ones are gradually retiring from the stage and by their silence rather