absolutely. is it shielded? even more likely now that we know about the cell tower...
On Mon, Oct 12, 2009 at 5:04 PM, Randy Cosby <dco...@infowest.com> wrote: > Are you saying you think the 5875 signal could be coming through > cabling? Like a bad poe injector or something? > > Randy > > > Gary McWhirter wrote: > > Cabling? > > > > On Mon, Oct 12, 2009 at 4:05 PM, Randy Cosby <dco...@infowest.com> > wrote: > > > > > >> Well, we replaced the backhaul (osbridge) and get the same readings on > >> the new one. The old one does not get the same readings when moved to > >> another location, so it's picking up SOMETHING. Powered down everything > >> else, same problem. So, someone is slamming me with a ton of signal > >> near 5875... Now to find out where it's coming from. > >> > >> Any recommendations for a 5 gig spectrum analyzer? Ubiquiti airview > >> looks interesting, but only for 2.4 and 900. Guess I can use the > >> built-in one in the osbridge, but it's not too fast / granular. > >> > >> Randy > >> > >> > >> Randy Cosby wrote: > >> > >>> Did that - don't have the results here with me, but there was quite a > >>> poor noise floor around the middle of the band - just like the osbridge > >>> reported. Not nearly as severe though. > >>> > >>> Randy > >>> > >>> > >>> Scott Carullo wrote: > >>> > >>> > >>>> Just do a survey on the AP, really thats all that matters... its easy > >>>> takes a few minutes and you have the data you need to make educated > >>>> decision. > >>>> > >>>> Scott Carullo > >>>> Brevard Wireless > >>>> 321-205-1100 x102 > >>>> -------- Original Message -------- > >>>> > >>>> > >>>> > >>>>> From: "Randy Cosby" <dco...@infowest.com> > >>>>> Sent: Monday, October 12, 2009 11:45 AM > >>>>> To: "WISPA General List" <wireless@wispa.org> > >>>>> Subject: Re: [WISPA] spectrum analysis - 5dBm interference at 5785 > >>>>> > >>>>> Quite likely you're right. > >>>>> > >>>>> I tried shutting off the trango AP's with no luck - same bad spectrum > >>>>> analysis. I'm next going to go on site and do linktests on the AP's > >>>>> with the backhaul off. > >>>>> > >>>>> My suspicion is the backhaul is bad - at least the spectrum analysis, > >>>>> but it is potentially the source of interference as well. > >>>>> > >>>>> Randy > >>>>> > >>>>> > >>>>> Lakeland wrote: > >>>>> > >>>>> > >>>>> > >>>>>> Randy, > >>>>>> > >>>>>> You cant go by that spectrum analyzer. Something is wrong. Most > >>>>>> > >>>>>> > >>>>>> > >>>> receivers > >>>> > >>>> > >>>> > >>>>>> can't handle 5dbm pumped into them without killing them. > >>>>>> > >>>>>> -B- > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> Randy Cosby writes: > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>>> Over the weekend we started getting complaints about a bad > linktests > >>>>>>> > >>>>>>> > >>>>>>> > >>>> for > >>>> > >>>> > >>>> > >>>>>>> all customers on an old trango AP site. I've tried finding a > cleaner > >>>>>>> > >>>>>>> > >>>>>>> > >>>> > >>>>>>> channel, but am not having much luck getting good linktests up > there. > >>>>>>> > >>>>>>> > >>>>>>> > >>>> > >>>>>>> This is one of the first sites I built, and use a couple OSBridge > >>>>>>> > >> 5Gxi > >> > >>>>>>> > >>>> > >>>>>>> radios to backhaul. I found they added a spectrum analyzer to a > >>>>>>> > >>>>>>> > >>>>>>> > >>>> newer > >>>> > >>>> > >>>> > >>>>>>> firmware version, so I installed it and ran a analysis of the site. > >>>>>>> > >>>>>>> > >>>>>>> > >>>> It > >>>> > >>>> > >>>> > >>>>>>> shows a 5dBm signal at 5785! Not -5, but 5. See attached. It > >>>>>>> > >>>>>>> > >>>>>>> > >>>> appears > >>>> > >>>> > >>>> > >>>>>>> that something VERY hot is either pointed at my AP site, or > something > >>>>>>> > >>>>>>> > >>>>>>> > >>>> up > >>>> > >>>> > >>>> > >>>>>>> there has started interfering. > >>>>>>> > >>>>>>> Spectrum analysis from the near side of the link was relatively > >>>>>>> > >> clean. > >> > >>>>>>> > >>>> > >>>>>>> Any suggestions on where to start my search? > >>>>>>> > >>>>>>> Randy > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>> > >>>>>> Bob Moldashel > >>>>>> Lakeland Communications, Inc. > >>>>>> 1350 Lincoln Avenue > >>>>>> Holbrook, NY 11741 > >>>>>> 800-479-9195 > >>>>>> 631-286-8873 Fax > >>>>>> 516-551-1131 Cell > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >> > ---------------------------------------------------------------------------- > >> > >>>> ---- > >>>> > >>>> > >>>> > >>>>>> WISPA Wants You! Join today! > >>>>>> http://signup.wispa.org/ > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >> > ---------------------------------------------------------------------------- > >> > >>>> ---- > >>>> > >>>> > >>>> > >>>>>> WISPA Wireless List: wireless@wispa.org > >>>>>> > >>>>>> Subscribe/Unsubscribe: > >>>>>> http://lists.wispa.org/mailman/listinfo/wireless > >>>>>> > >>>>>> Archives: http://lists.wispa.org/pipermail/wireless/ > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>> > >> > ---------------------------------------------------------------------------- > >> > >>>> ---- > >>>> > >>>> > >>>> > >>>>> WISPA Wants You! Join today! > >>>>> http://signup.wispa.org/ > >>>>> > >>>>> > >>>>> > >>>>> > >> > ---------------------------------------------------------------------------- > >> > >>>> ---- > >>>> > >>>> > >>>> > >>>>> WISPA Wireless List: wireless@wispa.org > >>>>> > >>>>> Subscribe/Unsubscribe: > >>>>> http://lists.wispa.org/mailman/listinfo/wireless > >>>>> > >>>>> Archives: http://lists.wispa.org/pipermail/wireless/ > >>>>> > >>>>> > >>>>> > >>>> > >>>> > >> > -------------------------------------------------------------------------------- > >> > >>>> WISPA Wants You! Join today! > >>>> http://signup.wispa.org/ > >>>> > >>>> > >> > -------------------------------------------------------------------------------- > >> > >>>> WISPA Wireless List: wireless@wispa.org > >>>> > >>>> Subscribe/Unsubscribe: > >>>> http://lists.wispa.org/mailman/listinfo/wireless > >>>> > >>>> Archives: http://lists.wispa.org/pipermail/wireless/ > >>>> > >>>> > >>>> > >>> > >>> > >> > -------------------------------------------------------------------------------- > >> > >>> WISPA Wants You! Join today! > >>> http://signup.wispa.org/ > >>> > >>> > >> > -------------------------------------------------------------------------------- > >> > >>> WISPA Wireless List: wireless@wispa.org > >>> > >>> Subscribe/Unsubscribe: > >>> http://lists.wispa.org/mailman/listinfo/wireless > >>> > >>> Archives: http://lists.wispa.org/pipermail/wireless/ > >>> > >>> > >> > >> > -------------------------------------------------------------------------------- > >> WISPA Wants You! Join today! > >> http://signup.wispa.org/ > >> > >> > -------------------------------------------------------------------------------- > >> > >> WISPA Wireless List: wireless@wispa.org > >> > >> Subscribe/Unsubscribe: > >> http://lists.wispa.org/mailman/listinfo/wireless > >> > >> Archives: http://lists.wispa.org/pipermail/wireless/ > >> > >> > > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > http://signup.wispa.org/ > > > -------------------------------------------------------------------------------- > > > > WISPA Wireless List: wireless@wispa.org > > > > Subscribe/Unsubscribe: > > http://lists.wispa.org/mailman/listinfo/wireless > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
