Archived from groups: alt.internet.wireless (
More info?)
On Thu, 22 Jul 2004 18:09:40 +0000 (UTC),
dold@WiFiXCompa.usenet.us.com wrote:
>Jeff Liebermann <jeffl@comix.santa-cruz.ca.us> wrote:
>> Since I do my hotspot sniffing while driving down the road, it shows
>> that most of the hotspots are located in the middle of the highways.
>
>I've noticed that. What seems really odd about that to me is that I can't
>pick up my WAP from the street in front of the house. How am I picking up
>other people's WAPs from the middle of Highway 87, where I can't even see
>the houses?
Because your vehicle isn't driving down the middle of their living
rooms. Your GPS give the location of the vehicle, not the access
point. As for coverage and such, it varies dramatically by the home
construction, elevation, and position of the access point. You
probably have chicken wire or foil back insulation in the walls.
>I've been playing with a DWL-122 mini-USB in several different sized cans.
>NetStumbler seems to max out in signal strength. I need to get some more
>distance between myself and the WAP in order to make further measurements.
>I'm going to use the same cans with the Orinoco and a bare radiator
>as well as the mini-USB inside the can.
Well, ok. Whatever sorta works.
You might be interested in reading RFC3825.
ftp://ftp.rfc-editor.org/in-notes/rfc3825.txt
Basically, it pre-loads the Lat-Long and altitude (or floor number) in
the access point. When a user associates, it delivers the location
info the users computer. When they call 911 using a VoIP phone, the
location info is forwarded to the PSAP (public safety answering
point). If Netstumbler can add a feature to convince the wireless
router to disgourge the required info, the maps might be more useful.
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831.336.2558 voice
http://www.LearnByDestroying.com
# jeffl@comix.santa-cruz.ca.us
# 831.421.6491 digital_pager jeffl@cruzio.com AE6KS