. Bell telephone magazine . rways regular or inter-mediate landing fields are never far away. Furthermore, thedispatcher calls the other planes in his territory which areapproaching the fog area, warns them of conditions and issuessuitable instructions. This, then, is two-way aviation communication in action, aBell System development which has added tremendously tothe safety of air travel. For the sake of clarity, the contributions which the art ofcommunication has made to commercial aviation may begrouped under several heads. First, there is two-way highfrequency radio telephone communication
. Bell telephone magazine . rways regular or inter-mediate landing fields are never far away. Furthermore, thedispatcher calls the other planes in his territory which areapproaching the fog area, warns them of conditions and issuessuitable instructions. This, then, is two-way aviation communication in action, aBell System development which has added tremendously tothe safety of air travel. For the sake of clarity, the contributions which the art ofcommunication has made to commercial aviation may begrouped under several heads. First, there is two-way highfrequency radio telephone communication between airplanesand the ground. This may be subdivided into (a) air trans-port company two-way dispatching and (b) airport and itiner-ant flyer two-way communication. Second, governmentweather broadcasting and range beacon signals and their recep-tion. Third, the use of the teletypewriter service by theGovernment primarily in making exact knowledge of weatherconditions quickly available and in posting up-to-the-minute 100.
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