On Sat, 24 Feb 2007 11:14:54 +0000, Kev <invalid@invalid.invalid>
wrote:

>Jeff Liebermann wrote:
>
>> Netstumbler gives BOTH the client and the access point's indicated
>> signal strength and signal to noise ratio (SNR). Scroll horizontally
>> with the numerical tables to see them. The column headings are not
>> very clearly labelled so you'll need to do some digging to figure out
>> what is indicated, peak reading, and in what direction. I tried to
>> find a Netstumbler reference page that defined the column headings,
>> but couldn't.
>
>Netstumbler-->Help-->Help Topics-->user interface-->List View

Thanks. I was looking all over the web and didn't bother to check the
help. (argh).

>> You really need all 4 numbers to do a decent job of
>> determining what's happening. For example, an overpowered transmitter
>> will yield a much higher signal strength in one direction than in the
>> other. Any interference might show up only at one end.

Oops. Looking at the above help page, Netstumbler does NOT show the
signal and noise for both ends of the link. It apparently shows only
what the local card shows for signal and noise. Well, one of the
numerous sniffers that I've used does show everything, but I seem to
have muddled them somewhat. I'll dig. It's either Kismet, Wi-Fi
Hopper, or one of the network sniffers that can decode 802.11 packets
(WireShark). I'll check when I have time.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 jeffl@comix.santa-cruz.ca.us
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS