[s-cars] In Car MP3 Players

[Kirby Smith]

Is the FM frequency adjustable.  One could probably capacitively couple
it to either window's antenna at some frequency not used locally.  FM
works on a limiting principle, and once Station 1 is several dB above
Station 2, at the antenna, it fully suppresses the other station.  With
this approach there would not need to be a lot of messing around with
the back of the radio.  However, vehicles close to you might pick up
what you are playing.  I don't remember what range one can transmit on
this band without FCC approval.  It is short, but I don't think it is
zero.  Capacitively coupling to the antenna would, I think, provide
adequate signal without much emission.

kirby

Matt Russell wrote:
>
> Varon, H+C, et al
> <snip>
> Consider this, the sound from a good
> quality FM modulator fed into the factory head unit will sound *at least* as
> good as the best FM radio station.
> <snip>
>
> And, remember that human ears cannot hear much beyond approx. 45-13,000 hz
> or so (i can't remember the exact numbers) - Point being, it's pretty close
> to what an FM modulator is capable of.
>
> < more snips>
> Face it, MP3 is about convenience and accessibility, not sound quality!
>
> Exactly.  Also remember (depending on speed) that the interior crusing speed
> noise inside the car with the windows up is 70-72 db (Stromung's not
> included).  So can those other frequencies be missed? depends on how good
> your hearng is, and whether or not you care.
>
> However, another reason to avoid an FM solution may be the diversity antenna
> system on some of the factory radios--where there are two antennas for
>
> You can work around that/  I was a little puzzled when I replaced my whole
> Bose set up.  However, one antenna hooked up is sufficient for good radio
> around me.  AM is another story... I haven't figured that one out yet.
>
> my .02,
> -Matt, CT
> 92 s4, with Pioneer, Rockford, and Boston.
>
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