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Source of regulatory information

 
 
Larry Finger
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      04-12-2006, 02:33 AM
I am working with the folks that are reverse engineering the Broadcom wireless driver for Linux.
Part of the job involves adding a software MAC layer to the ieee802.11 code. At present, each of the
wireless drivers handles its own regulatory/geographical information. This leads to such absurdities
as b/g drivers doing active scans for channels 1-14 everywhere in the world, even though channels
12-14 are not allowed in the US, and AFAIK channel 14 is only allowed in Japan.

I have googled for every keyword I could think of, but have not found any sites that spell out the
a/b/g channel and power restrictions in force throughout the world. Most of what I have found is
contained within the source code for the Intel ipw2200 driver, but that is given as obscure codes
with little information regarding the regulatory jurisdiction. I also have the IEEE public
documents, but they don't help much. Is there a site, or set of sites, the can provide this
regulatory information?

Thanks, Larry
 
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Jeff Liebermann
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      04-12-2006, 03:32 AM
On Wed, 12 Apr 2006 02:33:21 GMT, Larry Finger
<(E-Mail Removed)> wrote:

>I am working with the folks that are reverse engineering the Broadcom wireless driver for Linux.


Cool.

>Part of the job involves adding a software MAC layer to the ieee802.11 code. At present, each of the
>wireless drivers handles its own regulatory/geographical information. This leads to such absurdities
>as b/g drivers doing active scans for channels 1-14 everywhere in the world, even though channels
>12-14 are not allowed in the US, and AFAIK channel 14 is only allowed in Japan.


Americas (FCC)
2.412 to 2.462 GHz; 11 channels
5.15 to 5.35, 5.725 to 5.825 GHz; 12 channels

China
2.412 to 2.472 GHz; 13 channels
5.725 to 5.825 GHz; 4 channels

ETSI
2.412 to 2.472 GHz; 13 channels
5.15 to 5.35 GHz; 8 channels
5470 to 5725 MHz, 11 channels

Israel
2.432 to 2.472 GHz, 9 channels
5.15 to 5.35 GHz; 8 channels

Japan
2.412 to 2.472 GHz; 13 channels OFDM
2.412 to 2.484 GHz; 14 channels CCK
5.15 to 5.25 GHz; 4 channels

Japan2
2.412 to 2.472 GHz; 13 channels OFDM
2.412 to 2.484 GHz; 14 channels CCK
5.15 to 5.35 GHz; 8 channels

Korea
2.412 to 2.472 GHz; 13 channels
5.15 to 5.35, 5.46 to 5.72, 5.725 to 5.825, 19 channels

North America (not FCC)
2.412 to 2.462 GHz; 11 channels
5.15 to 5.35, 5.725 to 5.825 GHz; 12 channels

Singapore
2.412 to 2.472 GHz; 13 channels
5.15 to 5.35, 5.725 to 5.825 GHz; 12 channels

Taiwan
2.412 to 2.462 GHz; 11 channels
5.25 to 5.35, 5.725 to 5.825 GHz; 7 channels


>I have googled for every keyword I could think of, but have not found any sites that spell out the
>a/b/g channel and power restrictions in force throughout the world.


I couldn't find much either. This is the best I can offer:
| http://www.cisco.com/en/US/products/...08059c96f.html
| http://www.cisco.com/univercd/cc/td/...g/bkscgaxa.htm
| http://www.cisco.com/univercd/cc/td/...u01/auappb.htm
| http://www.intel.com/support/wireles...ide90/regs.htm

Trying to put that mess into a single coherent package is going to be
a major challenge.

>Most of what I have found is
>contained within the source code for the Intel ipw2200 driver, but that is given as obscure codes
>with little information regarding the regulatory jurisdiction. I also have the IEEE public
>documents, but they don't help much. Is there a site, or set of sites, the can provide this
>regulatory information?
>
>Thanks, Larry


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 (E-Mail Removed)
# http://802.11junk.com (E-Mail Removed)
# http://www.LearnByDestroying.com AE6KS
 
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Larry Finger
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      04-12-2006, 03:36 AM
Jeff Liebermann wrote:
> On Wed, 12 Apr 2006 02:33:21 GMT, Larry Finger
> <(E-Mail Removed)> wrote:
>
>> I am working with the folks that are reverse engineering the Broadcom wireless driver for Linux.

>
> Cool.
>
>> Part of the job involves adding a software MAC layer to the ieee802.11 code. At present, each of the
>> wireless drivers handles its own regulatory/geographical information. This leads to such absurdities
>> as b/g drivers doing active scans for channels 1-14 everywhere in the world, even though channels
>> 12-14 are not allowed in the US, and AFAIK channel 14 is only allowed in Japan.

>
> Americas (FCC)
> 2.412 to 2.462 GHz; 11 channels
> 5.15 to 5.35, 5.725 to 5.825 GHz; 12 channels
>


Thank you very much.

Larry
 
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