Re: BMW's GPS Technology

[Michiel van Wessem <jmvw@xxxxxxxxx>]

Hello Abunde,

I don't know too much about GPS, but I do know that the GPS receiver needs
be able to receive the signals of several satellites. All radio receivers
need an antenna of one form or another (even BMW receivers). So it must be
that the designers did a nice job of hiding it.

Maybe it uses the FM/AM radio antenna? I think GPS uses pretty short waves.
That means the antenna can be short too. The antenna could be hidden in one
of many things that stick out a little (like rearview mirrors, windshield
wipers or rear window defroster). 

Michiel

At 07:40 PM 9/30/99 -0700, you wrote:
>Dear List Members:
>I was reading up on GPS technology over the weekend
>and every article that I read says that every GPS
>system
>has two things required in order for it to work, a
>receiver and an antenna.
>I have a 1999 540i with BMW's navigational system, and
>I am definitely sure that my car does not have an
>antenna (at least one that I can see or recognize).
>Assuming that I am right, does it mean that BMW's
>system is different from what the rest of the world
>uses?
>I will appreciate any thoughful insights/knowledge.
>
>
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