John Scrivner wrote:
Mac,
We believe this is truly an outside offender in 2.4 GHz. I have
personally seen a carrier that is several times more power than anything
I have ever seen. I only saw it for a brief instant though. This
interference just does not last long enough to be caught. The high
latency is caused by retransmits but I am sure outside interference is
what is leading to the need for frames to be sent again. This effects
all channels across the 2.4 GHz bands. We have seen the noise floor jump
up higher than our radio power levels when this problem happens. What
ever is causing this is running higher power than anything we have in
the field. We will look at anything, though, to help troubleshoot and I
appreciate your ideas.
Scriv
We've had this too and have never been able to narrow it down. Basiclly,
certain areas and without warning or obvious cause, simply become dead
for 2.4ghz in that there appears some very powerful inband interference
that is not 802.11b/g and has no obvivious source we can find, but the
area of effect is fairly localized (using affected customers to
tirangulate).
We also have a problem within our hometown of repeatedly experiencing
burnt out 2.4ghz equipment. Never happens anywhere else in our county
wide footprint, just our hometown and across a wide variety of equipment
such as smartbridges, atheros, prism 2.5 cards, cb3's, cisco aironet,
you name it. Been looking at this problem for years and simply don't
understand it. We've had events like this occuring down one particular
street for example and an accesspoint not too far away, all in the space
of one evening. We've also had events like one subscriber per day (on
2.4ghz) winding up with burnt out prism card, requiring a truck roll and
card replacement.
Mike-
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