[lug] Local phone service with Comcast--any experience?
Daniel Webb
lists at danielwebb.us
Wed Jun 22 20:31:21 MDT 2005
On Wed, Jun 22, 2005 at 05:49:06PM -0600, Nate Duehr wrote:
> Oh yeah... someone else mentioned the WRT54G... maybe that plus a
> standard Vonage box would be more flexible. I saw some posts around
> that said Linksys is messing with the hardware and there are now (once
> again) multiple versions of the device... all named WRT54G. Why *do*
> they do that?! Sigh...
Something to think about: I have line of sight with 12 to 18 dB directional
antennas, and I still get 20-30 seconds dropout per hour due to all the
interference on the 2.4 Ghz band. My normal signal is good enough to get 10
Mbps sustained, which is a really good signal, but I get noise as high as
-60dB, and because of the way 802.11b works, it won't even transmit when the
noise is that high[1]. I was considering setting up voip over my wireless link,
and I probably will still try, but I don't expect it to be very reliable.
And no, no one else is using my channel or even the two adjacent channels, at
least not with 802.11b gear. I suspect cordless phones, but I know there are
at least two sources, because they affect the gear differently: one of them
causes the signal strength reported by iwconfig to drop to -110db or so, and
the other one causes the noise to rise to -60dB or so.
[1] At least, I think that's how it works... radioheads correct me if that's
not how the carrier sense part of 802.11b works.
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