check this out.. http://www.spacedata.net/smart_grid.html
Jaime Solorza Wireless Systems Architect 915-861-1390 On Wed, Dec 16, 2015 at 7:55 AM, Paul McCall <pa...@pdmnet.net> wrote: > That's very interesting Eric. Our exposure to the smart meter damage has > been minimal so far. One tower mostly unusable and a couple other > customers affected at other towers. > > We have a ham guy blasting away at 924 near two of our towers so we had to > use 906, 914, 922 for that tower (no guard zone) and it has worked pretty > well. > > We just got our 900 gear in so hopefully we can get it on a tower for > comparisons before Christmas > > -----Original Message----- > From: Af [mailto:af-boun...@afmug.com] On Behalf Of Eric Muehleisen > Sent: Wednesday, December 16, 2015 9:17 AM > To: af@afmug.com > Subject: Re: [AFMUG] 900 MHz 450i report > > Interesting. The majority of our 900 subs are located in prime smart meter > territory. I've worked with several of the power companies across western > Kansas and they all run a version of Landis Gyr meters with is FHSS 900 ISM > (see pic here > https://dl.dropboxusercontent.com/u/1578608/Public/smart_meter.jpeg) > > They transmit infrequently in short bursts...very little data. The only > time we see interference is when they mass update software. After some > discussion, we convinced them to run updates during our non-peak times. So > far we've been able to co-exist peacefully. YMMV. > > On Tue, Dec 15, 2015 at 7:38 PM, Ken Hohhof <af...@kwisp.com> wrote: > > Everywhere. > > > > Smartgrid is probably the main culprit. > > > > And without LOS, all signals get scattered by the same foliage and > > other obstacles that are scattering the signal you are trying to pick > > up. So literally, the interference sources are everywhere. Sometimes > > I blame the midichlorians. > > > > > > From: Jaime Solorza > > Sent: Tuesday, December 15, 2015 7:28 PM > > To: Animal Farm > > Subject: Re: [AFMUG] 900 MHz 450i report > > > > > > Where is the noise coming from? > > > > On Dec 15, 2015 6:19 PM, "Ken Hohhof" <af...@kwisp.com> wrote: > >> > >> We swapped out an FSK AP in a high interference area today. No > >> magic, works about the same. > >> > >> Too bad, even the installer liked the SM and antenna. Even the coax > >> boots are nice. > >> > >> Will probably work well for those of you who don't have -65 noise > floors. > >> > >> We are going to have to give up on 900 MHz at this location. This > >> was the last gasp. > >> > > >
