We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
6/30/36
"The Radio Paging Service will be a public service available to every resident of New York City and to every doctor who is interested in equipping his c?r with a receiving set.
"As the radius of operation will be limited to 50 or 65 miles, the same frequency used in New York City can be used in other cities throughout the United States. There are 100 cities of over 100,000 population now operating Doctors Telephone Services, how¬ ever only the large cities in this group have expressed the desire of carrying on a similar plan for their particular city.
"The Radio Paging Service of the Doctors’ Telephone Ser¬ vice will be only a method of signalling those who are wanted. No message or word of instruction is communicated to a doctor while enroute. Upon receiving a pre set signal, it is required of the doctor to leave his automobile, step to the nearest telephone and ask Radio Paging Service for his message.
"The receiving device to be carried by the doctor can be likened to the combination on a safe. Each receiving set has its own combination of numbers and when this code or series of dots, dashes is sent out over the air only the set of the doctor wanted responds by setting off a buzzer and lighting a pilot lamp.
"As the pilot lamp and buzzer remain in operation until released by the doctor it means that it is unnecessary for him to concentrate any attention on his receiver. He may be half an hour making a house call and upon returning to his automobile find his signal in operation.
"One receiving set has been built in the laboratory and successfully tried under actual operating conditions in New York City.
"The receiving set and device is in need of refinement, but inasmuch as there would be no need for it without the alloca¬ tion of a frequency for this class of emergency service, its development has simply been held in abeyance.
"It is the plan of the Doctors' Telephone Service to turn the building of these receivers over to some well known radio manufacturers who are interested in placing them with doctors on a rental and service basis.
"It is therefore recommended that a single frequency any¬ where in the 30 to 50 megacycle band be set aside for this Doctors' Paging Service throughout the country. The band width need be no more than 6 kc since the coding requirements are for one or more modulating tones each less than 3 kc and operating at comparatively slow speed.
"With adjacent communities having different code combina¬ tions, there is no doubt that this single channel can be duplicated every 100 miles without interference."
XXXXXXXX
3