[wplug] New FCC Rules May Prevent Installing OpenWRT on WiFi Routers
Drew from Zhrodague
drewzhrodague at zhrodague.net
Wed Jul 29 21:29:40 EDT 2015
*Ahem*
> Has this really been a problem, or are you putting out hypothetical
> reasons for locking down firmware? I'm not aware of any issue in this
> regard.
I think there is more fear-of-abuse, than any actual widespread use.
Many of the routers we're familiar with can be put into an
international-mode, which allows channels 12-14 - these are outside of
our limits here in the US. Flashing any distribution of OpenWRT (like
dd-wrt) will allow a user to set these other channels. I have heard of
people discussing this, and I can imagine that some frustrated users may
opt to use these 'extra' channels to avoid interference. Part of the
FCC's mandate is to protect various slices of spectrum from abuse, so I
can see that they want to do more to prevent out-of-band usage.
However, after skimming the posted FCC documents, it looks a bit
heavy-handed, and could be a big problem for the more advanced users,
mesh-networks, hobbyists, and whomever else - hell, I couldn't have done
robot comms and telemetry without a few wrt54g units from goodwill with
openwrt loaded - the commercial solution did not actually work at all!
I have not done a thorough analysis, but my initial take is that it
will jack-up the cost of routers, and make them unflashable by
end-users. I haven't been impressed with many factory firmware
iterations, so I am not looking forward to the upcoming limitations.
> I'm admittedly not an expert, but the max power of the radio should
> be a function of the hardware (I do understand that software can
> limit output, but I'm saying the hardware "is what it is" and no
> software is going to increase what the hardware is capable of). FCC
> should (and does) regulate output by radios/antennae, but should stay
> the hell out of trying to legislate software/firmware.
I believe the limit is 1 watt, and I have rarely encountered a router
that will do that much power - most are 30-100mw.
There will be a presentation regarding these FCC rules at the Battle of
the Mesh in Slovenia - where Adam Longwill from PittMesh will be
attending, and I think also presenting. I'll be paying close attention
to the details of that presentation.
http://battlemesh.org/BattleMeshV8
--
Drew from Zhrodague
post-apocalyptic ad-hoc industrialist
drew at zhrodague.net
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