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Path: utzoo!linus!philabs!cmcl2!seismo!hao!hplabs!piety
From: piety@hplabs.UUCP (Bob Piety)
Newsgroups: net.invest
Subject: Re: Real-Time Data - (nf)
Message-ID: <744@hplabs.UUCP>
Date: Mon, 20-Aug-84 11:45:41 EDT
Article-I.D.: hplabs.744
Posted: Mon Aug 20 11:45:41 1984
Date-Received: Wed, 22-Aug-84 04:44:24 EDT
References: <369@ism780.UUCP> <238@idi.UUCP>
Organization: Hewlett Packard Labs, Palo Alto CA
Lines: 8

For those interested, the Quotron  real-time stock data is transmitted on
KQED FM (~89Mhz) on a subcarrier (SCA-type like background music).  While it
is quite simple to build an SCA adapter and drive and RS-232 line
(4800baud), it is quite difficult to decrypt the data, since I'm sure they
don't send it un-encrypted.


Bob