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RE: [Karlnet] Changing Polarity

To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] Changing Polarity
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Thu, 8 Apr 2004 17:37:38 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Does anybody know what the C/I requirements are for TurboCell, I have
seen it working with -67dbm signal and -70dbm noise, which would be a
C/I of 3db...

Any other real world experience?


> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com]
> On Behalf Of Brendan O'Bra
> Sent: Thursday, April 08, 2004 5:27 PM
> To: Karlnet Mailing List
> Subject: Re: [Karlnet] Changing Polarity
> 
> holy crap! 65 db! WOW.
> 
> Provided you're using turbocell, you may still be able to make a go of
> it.  The differnce in polarity will probably help - assuming that most
> of your noise is the same polarity as the first antenna (the one
that's
> not working well currently).  I'd also suggest seperating the antennas
> vertically by as much as possible (at least 10 feet).
> cj wrote:
> 
> >Thats not a bad idea.  the only concern is will it cause too much
> interference to do anything?  I cant change the channel because i'm
> already using 6 and 11 up on the roof top.  if i change thepolarity
only,
> will i get too much interference to see the current clients even?  I'm
in
> vegas and already working with a really high noise floor (-65).  do
you
> think the polarity will be enough to have it still work?
> >
> >
> >
> >thanks
> >
> >cj
> >
> >Brendan O'Bra  wrote:
> >
> >
> >
> >>a changed in polarity can cause up to 30db change.
> >>
> >>
> >
> >
> >
> >>how about setting up a second AP with the new polarity, so that you
can
> >>change everyone over with minimum pain for everyone? If you used a
> >>different network id/passphrase, it would be pretty smooth (i'm
assuming
> >>you're running turbocell)
> >>
> >>
> >
> >
> >
> >
> >
> >
>
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