Article View: sci.electronics
Article #17596Re: Library Book detectors
From: E. G. Bradford
Date: Thu, 14 May 1987 20:30
Date: Thu, 14 May 1987 20:30
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I have looked in various old issues of Radio Electronics and asked a few friends and no one seems to know the answer to this question. What is the technology that systems like Quotrek use for broadcasting real time stock market quotations over the FM radio frequency? I assume it a subcarrier of a local station, but can guess no further. Does anyone know how this is done? Ed Bradford
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!sri-unix!ctnews!mitisft!egb From: egb@mitisft.Convergent.COM (E. G. Bradford ) Newsgroups: sci.electronics Subject: Re: Library Book detectors Message-ID: <199@mitisft.Convergent.COM> Date: Thu, 14-May-87 16:30:01 EDT Article-I.D.: mitisft.199 Posted: Thu May 14 16:30:01 1987 Date-Received: Sat, 16-May-87 12:09:01 EDT References: <146@illusion.UUCP> <868@oliveb.UUCP> <1726@kitty.UUCP> <667@stride.Stride.COM> Organization: Convergent Technologies, San Jose, CA Lines: 12 Summary: Stock quotes over the FM radio frequency