Re: [wireless-regdb] Fwd: possible mismatch Canadian regulatory info

[Seth Forshee <seth.forshee@canonical.com>]

On Mon, Feb 06, 2017 at 11:12:45AM -0800, cory novak wrote:
> (sorry if this is a duplicate, got a 'we don't accept html mails' error back)
> ---------- Forwarded message ----------
> From: cory novak <cory.novak@gmail.com>
> Date: Mon, Feb 6, 2017 at 11:07 AM
> Subject: possible mismatch Canadian regulatory info
> To: wireless-regdb@lists.infradead.org
> 
> 
> I really tried to use alternate mediums before bothering this list
> with info that appears to me to be mismatched, but, could easily
> simply be a result of my lack of knowledge.  Here's my info:
> 
> 
> Canada values from this source:
> http://git.kernel.org/cgit/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=HEAD
> 
> For Canada (5170 - 5250 is where I'm focusing):
> 
> country CA: DFS-FCC
> (2402 - 2472 @ 40), (30)
> (5170 - 5250 @ 80), (17), AUTO-BW
> (5250 - 5330 @ 80), (24), DFS, AUTO-BW
> (5490 - 5600 @ 80), (24), DFS
> (5650 - 5730 @ 80), (24), DFS
> (5735 - 5835 @ 80), (30)
> 
> *SEEM* to differ to my completely amateur eye vs industry canada
> section 6.2 here:
> http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html#s6.2
> 
> This is the applicable text for that band:
> 
> "The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10B, dBm,
> whichever power is less. B is the 99% emission bandwidth in megahertz.
> The e.i.r.p. spectral density shall not exceed 10 dBm in any 1.0 MHz
> band."
> 
> An easier source to parse for the IC data :
> http://www.semfionetworks.com/blog/industry-canada-new-5ghz-band-regulations
> 
> This is the output from my Archer C2600:    * 5180 MHz [36] (17.0 dBm)
>                         * 5200 MHz [40] (17.0 dBm)
>                         * 5220 MHz [44] (17.0 dBm)
>                         * 5240 MHz [48] (17.0 dBm)
> 
> 
> It appears that the 5170-5250 band is way under spec at 17dbm instead of 23dbm.

It looks to me like you are correct. Would you like to send a patch? Or
if you aren't familiar with patching the regulatory db I can generate
one.

Thanks,
Seth


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