Andy Green wrote: > BTW A lot of confusion is caused by this 4/94 type report in iwconfig, > if there is no valid information driven by bit error rate floating > around for that maybe an interesting patch would be to take the dBm > figure and say add 100 to it or something and report / 100, so at least > the figure here is sane.
All the numbers I posted were the "signal level" reported by iwlist. The reported noise level was -95dBm in all cases, so the baseline was the same, according to iwlist. Is that what you meant ? I've written a little script to summarize the output of iwlist scan: http://svn.openmoko.org/developers/werner/bin/wlanscan Some more results: local time 06:30, 13C, humidity 87%, sorted by ESSID for easier comparison. Laptop: 08 9noB -94/-95 dBm WEP 02 ALTAMIRANO -90/-95 dBm open 07 Amazonas Cafe -83/-95 dBm open 09 EDIFIER -84/-95 dBm WPA 12 LAORACION -94/-95 dBm WPA 13 TAXON OFFICE -92/-95 dBm WPA 11 The Newcastle Group -93/-95 dBm WPA 06 UOL-PIOLA -90/-95 dBm open 03 Universidad -79/-95 dBm WEP 05 canzani -84/-95 dBm open 10 linksys -84/-95 dBm WPA 04 [EMAIL PROTECTED] -104/-95 dBm open 01 xyz -48/-95 dBm WEP Neo 1, on the bench, partially unshielded: 04 Marin -95/-95 dBm WEP 03 Universidad -87/-95 dBm WEP 01 jose -90/-95 dBm WPA 02 xyz -56/-95 dBm WEP Neo 2, next to the laptop: 08 BaseSR -93/-95 dBm WEP 10 CBSHOME -93/-95 dBm WEP 01 EDIFIER -90/-95 dBm WPA 05 FT25250 -93/-95 dBm open 04 FT66245 -95/-95 dBm open 07 Marin -85/-95 dBm WEP 03 UOL-PIOLA -88/-95 dBm open 09 Universidad -89/-95 dBm WEP 02 jose -83/-95 dBm WPA 06 xyz -41/-95 dBm WEP The noise level is probably simply meaningless. My laptop seems to particularly like the nodes of the local free WLAN project (buenosaireslibre.org). For the villar_1 node, I got reports ranging from (plus !) 47/-95dBm to -189/-95dBm. I'll throw dice the next time ;-) So ... it seems that we're not doing so poorly overall in terms of access point detection. Association and DHCP were also fine with the open nodes. - Werner _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
