[Ccarc] Onstar pictures
Brandon DeLorenzo
webmaster at shepherdsgm.com
Wed Nov 28 10:54:51 EST 2007
I thought this was interesting how the Onstar system used by GM works a
satellite with only 3 watts of power and such a small antenna. I know I sent
this over the Remailer before but I added some more pictures of the antenna
and circuitry of the Onstar module.
"In a digital cellular system, voice is converted to a digital signal and
then transmitted over air. Digital cellular service operates in both the 800
MHz and 1900 MHz frequency range. The three dominant systems in the U.S. and
Canada are CDMA, GSM and TDMA. Onstar-equipped vehicles with dual-mode
(analog/digital) equipment have been engineered to work in the 800 MHz
frequency for analog or CDMA digital networks, in addition to the 1900 MHz
CDMA digital networks."
Click on the link for pictures:
http://www.culcom.net/~ccarcinc/onstar.html
Brandon J. DeLorenzo (KC9LVB)
Shepherd's Chevrolet-Buick-Pontiac-Cadillac
GM Performance Parts Authorized Center
1520 East Ninth St. Rochester, IN 46975
574-223-2136 Office
574-223-2718 Fax
<http://www.shepherdsgm.net> http://www.shepherdsgm.net
========================================================
Go to <http://www.gmperformanceparts.com> http://www.gmperformanceparts.com
to start your experience!!!
Dream it, Build it, Race it!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ns1.culcom.net/pipermail/ccarc/attachments/20071128/f5c15c88/attachment.htm
More information about the ccarc
mailing list