TV Detector Vans with URL

[Kevin P. Inscoe]

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Bob Bruhns wrote:
> I don't know, but the idea of licensing a TV receiver is a bit Orwellian.
> 
> In the USA, TV ratings companies used to go around looking for your local oscillator, and they would
> figure out what channel you were watching, and they would score another viewer for that station.
> 
> I see third and fourth harmonics of FM radio local oscillators at considerable distances, too.  There is
> usually some narrowband, muffled modulation from the AFC loop.  I suppose radio receivers could be
> licensed as well.

There was talk 15 years or so ago within Arbitron about putting
detectors along major highways in major markets (DC would be a prime
example) to show what radios stations were being tuned to soley based on
the LO.

I see MobilTrak is doing just that.

http://www.mobiltrak.com/News/materials/washingtonpost_10252004.cfm
http://www.venchar.com/2003/12/passive_monitor.html

- --
Kevin P. Inscoe                       Amateur Radio Call Sign: KE3VIN
Deltona, FL 32738                                28.9497N by 81.1952W
kevin [at] inscoe [dot] org                    http://kevininscoe.com
GPG 0x61288D53













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