900 is voodoo anyway. Notch filters are almost a necessity these days with 900. -- Justin Wilson <j...@mtin.net> Aol & Yahoo IM: j2sw http://www.mtin.net/blog xISP News http://www.twitter.com/j2sw Follow me on Twitter Wisp Consulting Tower Climbing Network Support
From: Chuck Hogg <ch...@shelbybb.com> Reply-To: WISPA General List <wireless@wispa.org> Date: Sat, 5 Feb 2011 11:51:16 -0500 To: WISPA General List <wireless@wispa.org> Subject: Re: [WISPA] 900MHz noise Something is frequency hopping, maybe RTK (John Deere, find the offender and work with them to have them skip your frequencies), Water Department SCADA (MicroHard sells one that does this to us, gotta reconfigure them to skip your frequencies), Electric Smart Meters (your screwed if this is it)... You might be able to move to horizontal? This is another reason I don't use MT/UBNT 900 any longer, the Canopy can operate with a noise level of -70 fairly well. Regards, Chuck On Sat, Feb 5, 2011 at 8:22 AM, Scott Reed <sr...@nwwnet.net> wrote: > I just put up a couple of new towers with MT/XR9 based APs. When they > went up about 3 weeks ago, everything was good. Signals were good. > Noise level in the 90s. Customers worked well. > Yesterday we were at a customer that has been problematic for 2 weeks or > so. Connected to the radio with power from the truck and the network > was great. Didn't really look at noise levels, but signals were good. > Connected the customer back up and no go. We found a power supply > problem and then checked for the signals again. OH NO, it won't stay > connected. Did a scan. Noise cycles over about 8 seconds like this: 93 > 85 70 50 65 70 85 95 > So this morning I ran scans from 2 other towers with XR9 APs. They are > doing the same thing. Direction doesn't seem to matter, but I did not > leave APs in scan mode with customers down long enough to get good > numbers based on direction. > Any suggestions as to what I am looking for? > > > -- > > Scott Reed > Owner > NewWays Networking, LLC > Wireless Networking > Network Design, Installation and Administration > Mikrotik Advanced Certified > www.nwwnet.net <http://www.nwwnet.net> > (765) 855-1060 > > > > > ------------------------------------------------------------------------------ > -- > 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/
