Christian Lamparter chunkeey
Tue Aug 16 08:25:45 PDT 2011

On Tuesday, August 16, 2011 04:37:13 PM David Goodenough wrote:
> On Tuesday 16 Aug 2011, Christian Lamparter wrote:
> > On Tuesday, August 16, 2011 04:10:31 PM David Goodenough wrote:
> > > As a side question, why would a card not be allowed to be an AP?  I can
> > > understand why it might not be capable of being an AP, but surely if
> > > anyone is allowed to be an AP (and having clients but no AP is no use to
> > > anyone) why are some cards not allowed to be an AP?
> > 
> > Because [at least in the US] the FCC dictates that an AP which
> > operates in the 5GHz band has to support DFS and TPC.
> > 
> > http://www.elliottlabs.com/documents/dynamic_frequency_selection_and_5ghz_b
> > and.pdf [http://linuxwireless.org/en/developers/DFS]
> > 
> > Currently, neither DFS nor TPC are not implementated, therefore you are
> > not allowed to operate a 5GHz AP, the law is as simple as that.
> In which case should the list say that DFS and/or TPC are required.
Are you questioning your own government :D ? They make the laws, so you
have to ask them.

> I seem to recall that there is work going on to do this
not anymore.


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