It looks just like you described.  Get a spectrum analyzer or a wi-spy and
check it out.  Chances are though you won't be there when it is happening.

Phil

On Sun, Feb 22, 2009 at 9:12 PM, RickG <rgunder...@gmail.com> wrote:

> I agree but such a sudden change? I mean like day & night. Interesting to
> contemplate though. What does interference look like if IT is affecting a
> tower?
> -RickG
>
> On Sun, Feb 22, 2009 at 11:08 PM, <e...@wisp-router.com> wrote:
>
> > Never assume a problem is ever interference no matter how rural you are.
> > This is one of the biggest problem I see people are doing.
> >
> > /Eje
> > Sent via BlackBerry from T-Mobile
> >
> > -----Original Message-----
> > From: RickG <rgunder...@gmail.com>
> >
> > Date: Sun, 22 Feb 2009 23:04:44
> > To: WISPA General List<wireless@wispa.org>
> > Subject: Re: [WISPA] tower issue
> >
> >
> > I agree with you and actually intend on replacing it. But, I doubt it's
> > related since this setup has been running on this particular tower since
> > 2004 (I bought the company this way). Also, it is set up on several
> others
> > with no issues. I failed to mention these towers are in very rural
> > locations
> > so I doubt there is any interference.
> >
> > -RickG
> >
> > On Sun, Feb 22, 2009 at 10:34 PM, Marlon K. Schafer <
> o...@odessaoffice.com
> > >wrote:
> >
> > > Not sure if it's related or not, but high gain omni antennas are
> usually
> > a
> > > great big no no.  They tend to send more signal UP than in the
> direction
> > of
> > > the customers.
> > >
> > > I'd replace it with an 8 or 9 db unit just on principal.  You'll
> probably
> > > find that most customers will actually get a BETTER signal.
> > >
> > > laters,
> > > marlon
> > >
> > > ----- Original Message -----
> > > From: "RickG" <rgunder...@gmail.com>
> > > To: "WISPA General List" <wireless@wispa.org>
> > > Sent: Sunday, February 22, 2009 7:23 PM
> > > Subject: [WISPA] tower issue
> > >
> > >
> > > > OK, here a good one! (aka, how I spent my weekend in a blizzard!)
> > > >
> > > > One of my towers has a single WARP/StarOS connected to a 5GHz grid
> for
> > > > backhaul and a 15dBi omni for the local connections.
> > > > On Saturday, after making some small changes, I rebooted it and it
> > would
> > > > not
> > > > allow me to connect via wireless any longer - or my customers :(
> > > > So, I go to the tower, connect up via ethernet and everything is a
> > usual
> > > > but
> > > > I see all associations but only a few client have ip addresses. I can
> > > ping
> > > > the few clients but the packet loss is huge 80-90%. I then reload my
> > > > backup
> > > > but still get the same thing. I try changing channels, but still the
> > > same.
> > > > I
> > > > then systematically begin replacing parts starting with the radio
> card.
> > > > Eventually, I replaced EVERYTHING but still have the problem. One
> note:
> > > > occasionally, twice of maybe three times, after a reboot, all came
> back
> > > > normal. The third time, I left well enough alone for now but of
> course,
> > > > you
> > > > know what will happen the next time I reboot.
> > > >
> > > > Any ideas???
> > > >
> > > > -RickG
> > > >
> > > >
> > > >
> > >
> >
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