Mark Schoonover wrote: > On Mon, Mar 24, 2008 at 2:37 PM, James G. Sack (jim) <[EMAIL PROTECTED]> > wrote: > >> Tracy R Reed wrote: >>> Neil Schneider wrote: >>>> Mark Schoonover wrote: >>>> Some dude did a war flight - similar to a wardrive >>>>> - in a small plane over San Diego and logged in the thousands. That >>>>> was a >>>>> few years ago. >>>> That would be our own Tracy Reed. >>> Indeed it would! >>> >>> I have been considering reprising this experiment. If anyone has the >>> equipment and wants to put together a proper scientific experiment and >>> do something unique (triangulate the actual location of the AP, acquire >>> useful data about the network involved, etc) I would be willing to give >>> it another go. We could even fly the same path as before and compare the >>> data. >>> >> I wonder what kind of antenna you would want/need for this? >> > > I don't know. I've done direction finding work before, but only from a fixed > location. DFing from a plane would be very challenging to say the least... > Normally you'd use some kind of Adcock array for VHF or UHF, but not sure in > the microwave bands. > > There is some info tho: > http://www.scitechpublishing.com/index.asp?PageAction=VIEWPROD&ProdID=158 >
Wouldn't a ordinary omni with hopefully not too thick (and not too thin) a donut pattern do the job, even? Have to have readings from 2 reception points, of course (plus altitude). Assuming a flat earth makes it easier, too. ;-) Seems like a lot of things need to be done at once, though: pick a channel pick a source try to quickly maximize the source signal and record direction and altitude do fast enough to be able to sample all channels, see strong signals Are there programs to help with this? Hardware? Regards, ..jim -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
