[Leaplist] Replies to "an ipcop question"

Fred Moore fmoor at fmeco.com
Mon Dec 15 22:53:39 EST 2008


Hank Lambert wrote:
>
> Very true. It's not that the new firmware will drive the transmitter
> more, it's that the stock firmware limits the power output. It's my
> understanding that the Linksys wireless devices are limited to
> somewhere around 24 mw; I believe that is 24 mw into the amplifier,
> but I am not positive on that. DD-WRT and Tomato Firmware will allow
> you to increase the power level to 251 mw, which is the limit of the
> transmitter.
>
> Being that Linksys did not design the ritter/wap to operate at that
> level, they did not provide adequate cooling for running the device at
> these increased power levels, and doing so will more than likely burn
> up the CPU. You can add a heat sink to the CPU, one like a video GPU
> cooler, and a cooling fan to get around the overheating problem. My
> best friend Google found many sites explaining how to do this.
> Personally, I would like to see a water-cooled Linksys WRT-54GL :)
>
> Increasing the power output is not the only way to increase range, and
> might not be the best option anyway (increasing power can increase
> noise). Quite a while ago Phil sent 3 e-mails with links on how to
> make high-gain antenna's for wifi devices. I lost those links when my
> laptop died, but maybe Phil and/or others might have those links and
> repost them. Now that I think about it, I would get more satisfaction
> from getter better performance from home brew antenna's than cranking
> up the power.
>
> --Hank
>
>
> Aaron Morrison wrote:
> > On 15 Dec 2008, at 18:55, William Warren wrote:
> >> also find a router that is suported by dd-wrt as it can also
> >> increase the radio's output.
> >>
> >> --
> > This has less to do with dd-wrt than the firmware in the access
> > point itself.  There are a number of reasons why power output may
> > be restricted (reliability, compliance with FCC rules for ERP
> > (Effective Radiated Power) or spectral purity, etc.)  If the
> > hardware doesn't support it, then all the software in the world
> > won't help increase power output.
>
> > --am
>
> > _______________________________________________ Leaplist mailing
> > list Leaplist at leap-cf.org
> > http://lists.leap-cf.org/mailman/listinfo/leaplist
>

Actually it was designed to run at 250 mw.  Europe allows higher
power.   if you run an external amplifier you actually may need to
decrease the power for spectral purity... I have not seen any heating
problem.. The best way to obtain gain is with the antenna its...free.. Fred


-- 
Lots of soaring generalities, without a single hard fact in sight. Saves
the trouble of having to do research.
Fred/WD8KNI



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