Cordless phones, baby monitors, PAGING SYSTEMS, and the bane for rural Iowa users is the new GPS positioning systems on every big farmer's tractor. They make 900 MHz worthless even with filters; they use the entire allotment. Telemetry, talking refrigerators, and other consumer devices also use 900 MHz. It also propagates much better than 2.4 so noise can be coming from a LONG ways away.
At 10:55 AM 9/3/2009, you wrote: >I am curious about 900 noise. My 2.4 gear sees noise levels of about >-98 to -102, but the XR9 setup I have with H120 sector see -80 to >-85 or so. I am in a small town of 5000 and I am curious what might >be generating such a high noise floor. > >Mark McElvy >AccuBak Data Systems, Inc. > >-----Original Message----- >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >On Behalf Of RickG >Sent: Thursday, September 03, 2009 10:42 AM >To: WISPA General List >Subject: Re: [WISPA] 900Mhz question > >Lol, and the answer is because horizontal usually has less noise. >Whcih has nothing to do with the size of the wave cycle. Unless >someone knows something I dont - which is always possible. > >On Wed, Sep 2, 2009 at 11:15 PM, Paul >Rice<paul.r...@boomerang-networks.com> wrote: > > heh, the question was why folks doing 900 preferred horizontal > > > > -------------------------------------------------- > > From: "RickG" <rgunder...@gmail.com> > > Sent: Wednesday, September 02, 2009 9:41 PM > > To: "WISPA General List" <wireless@wispa.org> > > Subject: Re: [WISPA] 900Mhz question > > > >> On Wed, Sep 2, 2009 at 12:06 PM, Paul > >> Rice<paul.r...@boomerang-networks.com> wrote: > >>> Folks like horizontal for 900 MHz due to the size of the wave cycle > >>> approx > >>> 13 inches long > >> > >> I knew that but couldnt figure out why you specified "horizontal". I > >> guess you might have said Folks like 900 MHz due to the size of the > >> wave cycle approx 13 inches long. > >> > >> Thanks! -RickG > >> > >> On Wed, Sep 2, 2009 at 9:51 PM, Paul > >> Rice<paul.r...@boomerang-networks.com> wrote: > >>> same size. The electromagnetic wave is the same, polarity refers to the > >>> orientation of the wave. up and down or side to side. > >>> 13 inches is the wavelength (length of a single cycle). > >>> > >>> -------------------------------------------------- > >>> From: "RickG" <rgunder...@gmail.com> > >>> Sent: Wednesday, September 02, 2009 7:33 PM > >>> To: "WISPA General List" <wireless@wispa.org> > >>> Subject: Re: [WISPA] 900Mhz question > >>> > >>>> The wave size of vertical would be different? -RickG > >>>> > >>>> On Wed, Sep 2, 2009 at 12:06 PM, Paul > >>>> Rice<paul.r...@boomerang-networks.com> wrote: > >>>>> Folks like horizontal for 900 MHz due to the size of the wave cycle > >>>>> approx > >>>>> 13 inches long > >>>>> > >>>>> -------------------------------------------------- > >>>>> From: "RickG" <rgunder...@gmail.com> > >>>>> Sent: Wednesday, September 02, 2009 11:02 AM > >>>>> To: "WISPA General List" <wireless@wispa.org> > >>>>> Subject: Re: [WISPA] 900Mhz question > >>>>> > >>>>>> But look at all the experience you are gaining :) > >>>>>> > >>>>>> On Wed, Sep 2, 2009 at 10:36 AM, Robert > >>>>>> West<robert.w...@just-micro.com> > >>>>>> wrote: > >>>>>>> Why horizontal polarity? Cause I'm a total idiot when it comes to > >>>>>>> 900mhz > >>>>>>> and as my luck usually runs, if I go by the book nothing works until > >>>>>>> I > >>>>>>> do > >>>>>>> what I'm not supposed to do. But, also as my luck runs, the opposite > >>>>>>> of > >>>>>>> what I try first will work So it actually won't matter what I do > >>>>>>> including > >>>>>>> sitting the antennas 5 feet in front of each other, it will never > >>>>>>> work > >>>>>>> the > >>>>>>> first time out. :) > >>>>>>> > >>>>>>> Bob- > >>>>>>> > >>>>>>> > >>>>>>> -----Original Message----- > >>>>>>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] > >>>>>>> On > >>>>>>> Behalf Of Tim Edwards > >>>>>>> Sent: Wednesday, September 02, 2009 12:33 AM > >>>>>>> To: WISPA General List > >>>>>>> Subject: Re: [WISPA] 900Mhz question > >>>>>>> > >>>>>>> I'm with Chuck, much better performance with the Trango vs. Mikrotik > >>>>>>> in > >>>>>>> my experience. > >>>>>>> Why horizontal pol? Vertical cuts through the foliage much bettter, > >>>>>>> at > >>>>>>> least with the NorCal > >>>>>>> foliage we have here. > >>>>>>> > >>>>>>> tim > >>>>>>> > >>>>>>> -- > >>>>>>> =-=-=-=-=-=-==-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > >>>>>>> Tim Edwards, Chief Engineer t...@telescience.net > >>>>>>> TeleScience Networks http://telescience.net > >>>>>>> 11101 Hiway 1, #102 415-663-8891 > >>>>>>> Point Reyes Station, CA 94956-1375 > >>>>>>> =-=-=-=-=-=-==-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> Chuck Hogg wrote: > >>>>>>>> I find that the Trango 900 can handle the noise and capacity much > >>>>>>>> better > >>>>>>>> than MikroTik/XR9. I have a few hundred on Trango and it works > >>>>>>>> better > >>>>>>>> imo than XR9's. Canopy's GPS synch is the only reason I would > >>>>>>>> prefer > >>>>>>>> their 900MHz option. > >>>>>>>> > >>>>>>>> Regards, > >>>>>>>> Chuck Hogg > >>>>>>>> Shelby Broadband > >>>>>>>> 502-722-9292 > >>>>>>>> ch...@shelbybb.com > >>>>>>>> http://www.shelbybb.com > >>>>>>>> > >>>>>>>> > >>>>>>>> -----Original Message----- > >>>>>>>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] > >>>>>>>> On > >>>>>>>> Behalf Of Robert West > >>>>>>>> Sent: Monday, August 31, 2009 4:49 PM > >>>>>>>> To: 'WISPA General List' > >>>>>>>> Subject: Re: [WISPA] 900Mhz question > >>>>>>>> > >>>>>>>> I'm actually about to test something similar in a few days. We have > >>>>>>>> a > >>>>>>>> 2.5 > >>>>>>>> mile link to put in with half a mile of it through trees with .25 > >>>>>>>> miles > >>>>>>>> of > >>>>>>>> that running right over a creek. Doing it on the cheap, or trying > >>>>>>>> to. > >>>>>>>> Have > >>>>>>>> 2 Mikrotik 411 boards on both sides running a transparent bridge > >>>>>>>> using > >>>>>>>> XR9 > >>>>>>>> cards attached to a pac wireless grid antenna setup with horizontal > >>>>>>>> polarity. The antennas are up and the boxes are configured, just > >>>>>>>> have > >>>>>>>> to go > >>>>>>>> out tonight or tomorrow and run power to them and try to see what > >>>>>>>> kind > >>>>>>>> of > >>>>>>>> throughput we can get, if any. Haven't tried it before but we'll > >>>>>>>> see. > >>>>>>>> > >>>>>>>> Bob- > >>>>>>>> > >>>>>>>> > >>>>>>>> -----Original Message----- > >>>>>>>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] > >>>>>>>> On > >>>>>>>> Behalf Of Patrick D. Nix, Jr > >>>>>>>> Sent: Monday, August 31, 2009 3:38 PM > >>>>>>>> To: WISPA General List > >>>>>>>> Subject: [WISPA] 900Mhz question > >>>>>>>> > >>>>>>>> We've been using the Trango 900Mhz gear and are familiar with canopy > >>>>>>>> and > >>>>>>>> it's abilities. How does a Mikrotik with something like a XR9 > >>>>>>>> compare > >>>>>>>> in terms of penetration and throughput when paired with a Ubiquity > >>>>>>>> CPE? > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> Patrick Nix, Jr., > >>>>>>>> Computer Network Solutions > >>>>>>>> CSWEB.NET Internet Services > >>>>>>>> IT Manager > >>>>>>>> > >>>>>>>> http://www.cnetworksolutions.com > >>>>>>>> http://www.csweb.net > >>>>>>>> > >>>>>>>> (918) 235-0414 > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> ________________________________ > >>>>>>>> > >>>>>>>> Attention: This e-mail and any attachments may contain confidential > >>>>>>>> and > >>>>>>>> privileged information. 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