Need join to 13th channel via Airport

Hi, under Windows XP and Windows 7 card supports channels for Europe 1-13, only under MacOSX it doesnt support 13 channels.

I do not know how to patch or edit the kext.
But, I must edit IO80211Familiy.kext to work my BCM4135 wifi card, because original kext includes these vendors IDs: 4311, 4312, 4313, 4318, 4319, 431a, 4320 etc... and my card ID is 4315 which is not included in original kext, so I simply added this ID to original IO80211Family.kext and now it is working, but only on channels 1-11.

@00010Wouldn't it be easier to just change the channel your router/access point broadcasts on?

No. I want to join University Infrastructure at channel 13, in World is know as "Eduroam" network.

I am a pc user too, I have laptop dell d630 and I tried this card on windows xp and windows 7 too, everything wokring well with channel 1-13, but only under Mac OSX it does with channel 1-11 only

Now, I am gonna to buy other wifi kard with chip Broadcom BCM4321 with 802.11n draft support, my question is: Will this new card supported by Max OSX ? (I have Snow Leo 10.6.2).

Now, I have BCM4321 802.11a/b/g/n and still have problems with supporting channels 12, 13.
Now my card supports channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165, but 12 and 13 is not included.

This is from System profiler... AirPort:
Software Versions:
Menu Extra: 6.2 (620.24)
configd plug-in: 6.2 (620.15.1)
System Profiler: 6.0 (600.9)
Network Preference: 6.2 (620.24)
AirPort Utility: 5.4.2 (542.23)
IO80211 Family: 3.1 (310.6)
Interfaces:
en1:
Card Type: Third-Party Wireless Card
Supported PHY Modes: 802.11 a/b/g/n
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165
Wake On Wireless: Supported
Current Network Information:
Security: None
Other Local Wireless Networks:

Using application named WiFi Scanner I see, that my Country Code is set to US and I dont know, how to change it.

Maybe try this:
mactip.blog spot.com/2008/12/channel-13-leopard-wireless-card-locale.html

I could imagine this to be a limitation by Dell to make their prodcut suitable for outer european FCC rules. Does it work using an other OS? If not maybe ask the Dell support?

Where did you obtain the card, the card may not support 13 channels as a hardware limitation, which means that you may have a shot if you can flash new firmware to the card as an update, but that would probably require access to a Windoze box.

00010

Well you need to find a fix or patch then for your problem, but there has to be some way of enabling it, it may require alot of work though, I think if you modified the .kext file it may work, I have modified WIFI .kext files before to work with different device IDs for different revisions.

D.M

Weird thing is that my BCM4311 card (non-branded product) which I had orderd from the UK doesn't have this limit - at least not on 10.6.2

(And it's using them same Kernel Extension.)

Ok, then maby its the card itself, maby a firmware update on the card?

00010

That means that the device parameters need to be tweaked inside the kext, especially if it works fine under windoze with all 13 channels, This would be intresting to see, I would like to get more than 11 channels too.

00010

Wouldn't it be easier to just change the channel your router/access point broadcasts on?

i just got me a new wireless n" card today and it works out of the box! TP-Link TL-WN951N and can join channel 12,13 so maybe you need a new card?