Archived from groups: (
More info?)
On Mon, 19 Sep 2005 00:45:12 -0400, "yv6eda" <yv6eda"at"softhome.net>
wrote:
>I want to know if I set up 2 laptops with a wireless cards in ad-hoc mode
>each laptop in a car, how far away the cars can be connected?
If you're using the built in antennas that come with most laptops, I
doubt if you will be able to RELIABLY maintain a connection while
moving. Range would not even make it out of the vehicle because of
the shielding from the metal car body. You would need to either
elevate the laptops to the window level, or otherwise provide a
suitable external antenna. However, once you have an external
antenna, dopper shift will cause some problems if there is relative
motion. It appears that both vehicles are moving together so that
won't be an issue.
My guess is you'll get no distance with conventional laptops inside a
shielded vehicle, about 20ft with laptops elevated to glass level, and
perhaps 100ft with external antenna on the vehicle rooftop.
--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558