Alan wrote: > On Tue, March 25, 2008 11:24 am, Mark Schoonover wrote: >> A quarter wave antenna on 2.4 Ghz is approx 31.25 mm, the antennas >> wouldn't >> have to be too far apart to work... >> > > I'd be inclined to talk to my local Ham Radio community. > Fox Hunting is a major competition at Field Days and the like, and some of > the top competitors take it very seriously. > Obviously the frequencies are different, but field strength meters, > antennas and the other equipment is probably tunable.
There seem to be lots of hits from google using search terms like warflying, including this one: http://www.g4tv.com/techtvvault/features/39432/Warflying_for_WiFi.html """ .. The first account of Wi-Fi fans taking to the air to map out wireless Internet nodes involves an Australian group called the WAFreeNet, which uses a Grumman Tiger four-seater in the Perth skies. The first apparent case in the United States of warflying was achieved by Tracy Reed, a system administrator for MP3.com. Besides being a Wi-Fi enthusiast, he's also an amateur pilot. .. """ This one might weigh down the plane? http://geektechnique.org/projectlab/781/slurpr-the-mother-of-all-wardrive-boxes I wonder if it's possible to get decent accuracy from passive measurement of signal strengths (much less phase data). But I'm just expressing my unexperienced doubts. Maybe with more expensive equipment or more care? But I'm thinking you probably have to have directional fixes. How about a rotating directional antenna-pair? Maybe display calculated range on an oscilloscope? :-) Maybe source triangulation is not worth the effort. Just the (average) plane location for each detected source may be good enough? Regards, ..jim -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
