Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!amdcad!ames!nrl-cmf!mailrus!tut.cis.ohio-state.edu!ukma!gatech!fabscal!dorn
From: dorn@fabscal.UUCP (Alan Dorn Hetzel)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Magazine Distribution (was Re: Allen Holub on DDJ & C-Chest)
Keywords: DDJ, C-Chest, magazines
Message-ID: <375@fabscal.UUCP>
Date: 26 Sep 88 20:06:48 GMT
References: <22873@amdcad.AMD.COM> <14047@agate.BERKELEY.EDU> <75@unet.pacbell.COM> <5550@killer.DALLAS.TX.US> <3961@tekgvs.GVS.TEK.COM> <6638@dasys1.UUCP>
Reply-To: dorn@fabscal.UUCP (Alan Dorn Hetzel, Jr.)
Distribution: na
Organization: /usr/lib/news/organization
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I believe that Lotus Signal uses what is known as FM-Subcarrier transmission,
which means that their data is piggy-backed onto a broadcast FM stations
carrier in a means which prevents its interference with the audible (music)
portion of the signal.  This method results in fairly low baud rates, but
does give good coverage (roughly equal to the stations receivable area).

Some pagers also use this method, as well as a calculator sized radio based
stock ticker (sort the ultimate nerd-trader accessory)

Dorn