slimpy;236084 Wrote:
> It is not sufficient to only have different channels because the signal
> is wider (22Mhz) than the seperation between channels (5Mhz). You need
> to choose a channel that is separated by at least 4 channels from any
> other used channel. Channels 1,6,11 are usually referred to as
> non-overlapping so if you have several APs in the same geographic
> location you would assign them one of those channels each to avoid
> interference.
> If you can't set your AP to a non-overlapping channel then at least try
> to set it to a channel overlapping with only the weakest APs.
>
> -s.
>From this new POV, my wireless environment looks pretty scary:
Code:
--------------------
$ iwlist ath0 scan | grep -v Extra: | sed 's/Address: .*//'
ath0 Scan completed :
Cell 01 -
ESSID:"Bluewin"
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality=8/70 Signal level=-87 dBm Noise level=-95 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s
48 Mb/s; 54 Mb/s
Cell 02 -
ESSID:"4344 6414"
Mode:Master
Frequency:2.442 GHz (Channel 7)
Quality=7/70 Signal level=-88 dBm Noise level=-95 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Cell 03 -
ESSID:"olivia"
Mode:Master
Frequency:2.442 GHz (Channel 7)
Quality=25/70 Signal level=-70 dBm Noise level=-95 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Cell 04 -
ESSID:"snet"
Mode:Master
Frequency:2.462 GHz (Channel 11)
Quality=26/70 Signal level=-69 dBm Noise level=-95 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
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 05 -
ESSID:"raphigion"
Mode:Master
Frequency:2.412 GHz (Channel 1)
Quality=5/70 Signal level=-90 dBm Noise level=-95 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
--------------------
I escaped to Channel 11 but it still sucks to know that there is no
`clean' way to run more than 3 access points in the same building..
--
finger
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