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List:       nanog
Subject:    Re: Finding information about metro private line service in downtown SF
From:       Mike Lyon <mike.lyon () gmail ! com>
Date:       2004-10-29 6:35:17
Message-ID: 1b5c1c1504102823351e54a1d4 () mail ! gmail ! com
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Depends on the distance and what antennas you are using. If it's a
short hop (which it sounds like it is) and you have very directional
antennae, you can usually avoid most of the interference, especially
if engineered correctly with frequency coordination (BANC) and
checking of the frequencies with a spectrum analyzer before hand using
the the antennas you plan to use (like stated earlier in this thread).
But of course, stear away from the 2.4 Ghz band, look at 5 Ghz and
beyond.

-Mike


On Thu, 28 Oct 2004 21:56:37 -0700 (PDT), Tom (UnitedLayer)
<tom@unitedlayer.com> wrote:
> 
> On Thu, 28 Oct 2004, Jeff Rosowski wrote:
> > The Corning, FreeLink Optical Transport System looked pretty good as well
> > if you have the money for it.  Handles most weather, with the exception of
> > fog.
> 
> Using FSO in San Francisco is almost impossible :)
> There are way too many foggy days, I've watched links go up and down when
> fog rolls down the street.
> 
> If you're looking at wireless, the only real option is 38Ghz (if you can
> get the license) because of all of the 802.11x pollution.
> 
>
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