[BC] Re: FM Modulators for Satellite Radio

Dana Puopolo dpuopolo
Sat Jun 24 10:45:26 CDT 2006


Besides, the average car FM receiver has under one microvolt sensitivity, and
a capture ratio of under 2 db.  What does this mean? That they can easily pick
up a 100% compliant part 15 modulator (250 microvolts signal at ten feet) 100
(or more) feet away!
Remember, the compliant modulator will STILL produce a 15 microvolt signal at
100 feet from the unit....

-D

------ Original Message ------
Received: Sat, 24 Jun 2006 06:24:45 AM EDT
From: "R J Carpenter" <rcarpen at erols.com>
To: <broadcast at radiolists.net>
Subject: [BC] Re: FM Modulators for Satellite Radio

I don't have a link to the real info, but as I recall the story:

Something like 16 of the 18 FM modulators involved were for iPods, 
etc, not sat radio units.  The original news stories months ago 
memtioned hearing H. Stern (Sirius) from nearby cars.

XM put out a release about a week ago saying that the FCC had given a 
couple of their "questioned" units a clean bill of health. They are 
the SkyFi2 and Audiovox Xpress.



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