Funny you should ask. 2 years ago I had to abandon 2.4 due to the noise floor creeping up. Since then the 5.7 noise floor has been climbing and the 2.4 spectrum went back down and is usable again.
Go figure.... __________________________________ Jerry Richardson airCloud Communications -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mike Hammett Sent: Wednesday, January 07, 2009 11:25 PM To: WISPA General List Subject: Re: [WISPA] Typical Sector count Who uses 2.4 GHz anymore? When I started almost 4 years ago, I chose 5 GHz because of the potential for 2.4 GHz noise and the lack of spectrum. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Chuck Hogg" <ch...@avolutia.com> Sent: Wednesday, January 07, 2009 2:11 PM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] Typical Sector count > You don't have enough channel overlap with 90 degree sectors in 2.4, > 5Ghz probably ok...but not 2.4 ? > > Regards, > Chuck Hogg > Avolutia, LLC > 502-722-9292 > ch...@avolutia.com > www.avolutia.com > www.shelbywireless.com > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Mike Hammett > Sent: Wednesday, January 07, 2009 3:01 PM > To: WISPA General List > Subject: Re: [WISPA] Typical Sector count > > Interference protection is exactly why I went with 90*. Not that > there's > much to be worried about where I am, but I figured it a better decision > to > overbuild. That and extra capacity, something most WISPs don't engineer > > for. > > The omnis are only for small areas, of a half mile or less. > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > > -------------------------------------------------- > From: "Jack Unger" <jun...@ask-wi.com> > Sent: Wednesday, January 07, 2009 1:34 PM > To: "WISPA General List" <wireless@wispa.org> > Subject: Re: [WISPA] Typical Sector count > >> Mike, >> >> Just my 2 cents worth (after 50 years of RF experience). >> >> In many cases, four 90-degree sectors is a waste of money. You will > have >> more sector overlap than need. Three 120-degree sectors is just as >> effective and costs less. >> >> A single omni is normally a bad idea. You have no protection from >> interference coming in from any direction. >> >> jack >> >> >> Mike Hammett wrote: >>> Since Patrick posed that question about cost for a typical 3 sector >>> tower, I ask the following question: >>> >>> How many sectors is typical for you? >>> >>> My answer is 4x 90*, unless it's a small area repeater, which is then > a >>> single omni, or different as that situation requires. >>> >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> >>> >>> > ------------------------------------------------------------------------ > -------- >>> WISPA Wants You! 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