I’ve been seeing this thread on the list for a while but hadn’t really read it. Probably worth keeping in mind when we do turn our stuff on to see how much interference there might be
Sent from my iPhone > On Jul 25, 2021, at 10:09, Jaime Solorza <[email protected]> wrote: > > > T-Mobile took over lots of 2 and 3Ghz stuff from Sprint...maybe could be > related to that.. > >> On Sun, Jul 25, 2021, 7:45 AM Tyson Burris <[email protected]> wrote: >> LOL, Mike you got to get in the game bro. >> >> I typed that up half asleep as well. >> >> >> >> It’s not always that easy, but yes we have done all that. >> >> You really think Crown, SBA, American care? >> >> >> >> Crowns answer: 3ghz isn’t licensed anyone can use it plus you would need to >> contact the interfering party directly >> >> >> >> Well they are partially right. >> >> >> >> Tyson Burris, President >> Internet Communications Inc. >> 739 Commerce Dr. >> Franklin, IN 46131 >> >> Office # 317-738-0320 >> Cell/Direct # 317-412-1540 >> Online: www.surfici.net >> >> >> >> >> >> What can ICI do for you? >> >> >> Broadband Wireless - PtP/PtMP Solutions - Mesh Wifi/Hotzones - IP Cameras - >> Fiber - Towers - Infrastructure. >> >> CONFIDENTIALITY NOTICE: This e-mail is intended for the >> addressee shown. It contains information that is >> confidential and protected from disclosure. Any review, >> dissemination or use of this transmission or its contents by >> unauthorized organizations or individuals is strictly >> prohibited. >> >> >> >> From: AF <[email protected]> On Behalf Of Mike Hammett >> Sent: Sunday, July 25, 2021 8:59 AM >> To: AnimalFarm Microwave Users Group <[email protected]> >> Subject: Re: [AFMUG] T-Mobile PALs and CBRS GAA >> >> >> >> I just woke up, so maybe my reading comprehension isn't the best yet. >> >> >> >> >> >> Can't you use a spectrum analyzer to track down the sources of the >> interference and then work with the tower owner on who it is that's on that >> tower and contact information? >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> >> Midwest Internet Exchange >> >> The Brothers WISP >> >> >> >> >> From: "Tyson Burris" <[email protected]> >> To: [email protected] >> Sent: Sunday, July 25, 2021 5:24:25 AM >> Subject: [AFMUG] T-Mobile PALs and CBRS GAA >> >> Good morning AF Geeks- >> >> >> >> Someone help me understand this better. Several questions below. >> >> We operate in six counties in Indiana. Some rural some not so much. >> >> In our main county (johnson) we are starting to get interference even when >> we are connected to the SAS. >> >> While we cannot prove anything yet, each tower we are seeing this on >> recently had new T-Mobile equipment deployed. >> >> >> >> I reached out to our attorney, Steve Coran, this week and asked him to >> pulled the county PAL winners. Listed here: >> >> >> >> PAL winners for Johnson County, IN: >> >> >> >> XF Wireless Investment, LLC (Comcast) -- 20 MHz >> >> Actel, LLC (CenturyLink) -- 20 MHz >> >> Wetterhorn Wireless L.L.C. (DISH) – 30 MHz >> >> >> >> >> >> -Century Link has zero cell services of any kind in our county and currently >> not deploying in fixed wireless. >> >> -Comcast floats off Verizon >> >> -Dish also has zero cell services of any kind in our count >> >> >> >> So what we ended up with is PAL winners who have nothing to offer locally >> yet unless subleasing. >> >> >> >> Questions are: >> >> >> >> is T-Mobile subleasing PAL’s from any of these three? >> >> Is T-Mobile illegally just rotating PAL’s anywhere they want in the country >> instead of just local counties? >> >> Anyway to clearly isolate the offending carrier sucking up so much spectrum >> and causing all the interference? >> >> Another member brought up T-Mobile as a possible offender. Did any data >> come from that? >> >> What time of the day do the SAS databases sync with each other and does this >> force other carriers to cut back on total GAA – share nicely? >> >> Has anyone found the other SAS providers to be better then GOOGLE. Starting >> to think their system is worthless or inaccurate. Truth is I think this >> whole concept of spectrum sharing is poorly handled and not fully tested on >> 3g. >> >> If a carrier is on the same tower, how will that affect sync? I ask because >> we found some very interesting work arounds and results with upload when we >> started playing with sync settings…ie distance, frame, channel. >> >> If the customer SM is moved from one spot to another or from a roof to a >> post how badly does this affect the calculations on the SAS side? >> >> >> >> >> >> Things we have discovered: >> >> Even when we find noise floors on spectrum analysis in a reasonable range >> and move to the cleaner channel on the SAS the interference still trashes >> the uplinks. >> In some cases the SAS is blocking the cleanest of channels which could be >> PAL related. >> In some cases customer SM’s going off other ‘unaffected’ sites nearby may >> get knocked offline by the new noise. >> In some cases we have had to drop off the SAS and found switching to other >> regulatory has allowed us to switch to cleaner channels and stabilized subs. >> (which is exactly what we shouldn’t be doing) >> We have a ton of 450m units going on towers as both new and upgrades. I am >> concerned that the more urban areas will struggle with capacity since we >> have to break this up across multiple sectors. >> >> >> >> >> History and Equipment: >> >> Again this seems very isolated to our more urban deployments which have >> historically been awesome in the 50Mhz channels prior to CBRS turn ups. >> >> Our more rural areas are not seeing this issue at all. >> >> All three locations have very specific and brand new T-Mobile equipment so >> this has been our assumption of the cause without such proof. >> >> Equipment on these commercial towers has been no more then two 450i AP’s >> with KP 120’ sectors (pending 450m upgrades). >> >> >> >> >> >> >> >> Tyson Burris, President >> Internet Communications Inc. >> 739 Commerce Dr. >> Franklin, IN 46131 >> >> Office # 317-738-0320 >> Cell/Direct # 317-412-1540 >> Online: www.surfici.net >> >> >> >> >> >> What can ICI do for you? >> >> >> Broadband Wireless - PtP/PtMP Solutions - Mesh Wifi/Hotzones - IP Cameras - >> Fiber - Towers - Infrastructure. >> >> CONFIDENTIALITY NOTICE: This e-mail is intended for the >> addressee shown. 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