Re: netgear pcmcia card

["Jerry Feldman-2" <user=4@nabble.blu.org>]

 On Thu, 13 Mar 2008 13:18:05 -0400 
"dan moylan" <[hidden email]> wrote: 

> iwconfig gives: 
> 
> wlan1     IEEE 802.11g  ESSID:off/any 
>           Mode:Managed  Channel:0  Access Point: Not-Associated 
>           Bit Rate:1 Mb/s   Sensitivity=-200 dBm 
>           RTS thr=2346 B   Fragment thr=2346 B 
>           Power Management:off 
>           Link Quality:0  Signal level:0  Noise level:0 
>           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0 
>           Tx excessive retries:0  Invalid misc:0   Missed beacon:0 
> 
> hmmm, this looks like low signal level. 
> 
> iwlist scan shows: 
> 
> wlan1     Scan completed : 
>           Cell 01 - Address: 00:09:5B:23:8A:26 
>                     ESSID:"moylan-net" 
>                     Protocol:IEEE 802.11b 
>                     Mode:Managed 
>                     Frequency:2.412 GHz (Channel 1) 
>                     Quality:18/100  Signal level:-84 dBm  Noise level:-96 dBm 
>                     Encryption key:on 
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s 
>                     Extra:bcn_int=100 
>                     Extra:atim=0 
>           Cell 02 - Address: 00:12:17:05:6C:20 
>                     ESSID:"" 
>                     Protocol:IEEE 802.11g 
>                     Mode:Managed 
>                     Frequency:2.412 GHz (Channel 1) 
>                     Quality:12/100  Signal level:-88 dBm  Noise level:-96 dBm 
>                     Encryption key:on 
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 
>                               24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s 
>                               12 Mb/s; 48 Mb/s 
>                     Extra:bcn_int=100 
>                     Extra:atim=0 
>           . 
>           . 
>           . 
> 
> 12 db snr isn't so hot, though i don't know what is required. 
> 
> putting back my netgear MA401 card, i get for iwconfig: 
> 
> wifi0     IEEE 802.11b  ESSID:"moylan-net<"  Nickname:"" 
>           Mode:Managed  Frequency:2.412 GHz  Access Point: 00:09:5B:23:8A:26 
>           Bit Rate:11 Mb/s   Sensitivity=1/3 
>           Retry short limit:8   RTS thr:off   Fragment thr:off 
>           Power Management:off 
>   
> wlan0     IEEE 802.11b  ESSID:"moylan-net<"  Nickname:"" 
>           Mode:Managed  Frequency:2.412 GHz  Access Point: 00:09:5B:23:8A:26 
>           Bit Rate:11 Mb/s   Sensitivity=1/3 
>           Retry short limit:8   RTS thr:off   Fragment thr:off 
>           Power Management:off 
>           Link Quality=33/70  Signal level=-62 dBm  Noise level=-95 dBm 
>           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0 
>           Tx excessive retries:0  Invalid misc:1   Missed beacon:0 
> 
> and for iwlist scan: 
> 
> wifi0     Scan completed : 
>           Cell 01 - Address: 00:09:5B:23:8A:26 
>                     ESSID:"moylan-net" 
>                     Mode:Master 
>                     Frequency:2.412 GHz (Channel 1) 
>                     Signal level=-57 dBm  Noise level=-90 dBm 
>                     Encryption key:on 
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s 
>                     Extra:bcn_int=100 
>                     Extra:resp_rate=10 
>           Cell 02 - Address: 00:11:24:0D:C1:33 
>                     ESSID:"fines" 
>                     Mode:Master 
>                     Frequency:2.457 GHz (Channel 10) 
>                     Signal level=-63 dBm  Noise level=-92 dBm 
>                     Encryption key:on 
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s 
>                     Extra:bcn_int=100 
>                     Extra:resp_rate=10 
>            . 
>            . 
>            . 
> 
> big difference.  do you think it's just a faulty card? 
> and how come there's no Quality: figure now on the scan?