With signal levels that hot, seams like it wouldn’t be too difficult to find the source walking around with a yagi and ubnt or canopy SM.
From: Af <af-boun...@afmug.com> on behalf of George Skorup <geo...@cbcast.com> Reply-To: "af@afmug.com" <af@afmug.com> Date: Monday, June 13, 2016 at 11:43 PM To: "af@afmug.com" <af@afmug.com> Subject: Re: [AFMUG] UBNT 900 channels Yep, I know. Could be anything. This signal is very hot though. We've seen baby monitors and cordless phones go bad and start spewing all kinds of crap over the years. And remember, Canopy 900 FSK is listening on an 8MHz wide channel. That's why it looks so bad. And like I said, it's obviously overload the receiver. Whatever it is, it's more than 36dBm EIRP. And there *are* licensed users in the 902-928 band, besides even amateurs. There's public water meters in town, but it's not usually very chatty. They're still on the sleepy meters where they drive around and wake them up to read them. And that's on a fixed channel at 915.5. There's also Commonwealth Edison rolling out smart meters. They're installing them now. All FHSS. No repeaters up yet. Mesh is not activated yet. Next year they say. Did I mention that I hate 900? Only gonna get worse. On 6/13/2016 10:26 PM, Jaime Solorza wrote: Yikes... https://fccid.io/frequency-explorer.php?lower=911.5&upper=913.5 On Jun 13, 2016 9:22 PM, "Jaime Solorza" <losguyswirel...@gmail.com<mailto:losguyswirel...@gmail.com>> wrote: 911.5 is used by some railroad companies for Transponders... On Jun 13, 2016 9:18 PM, "Jaime Solorza" <losguyswirel...@gmail.com<mailto:losguyswirel...@gmail.com>> wrote: On your graph it is much wider than what you are stating....how was the aniritsu set up? Did you try listening to signal? You can find allot of issues that way....even cellular sites can bleed into 900 MHz band..GTE was notorious for it... -35dB at 2 blocks? Where is this? City, rural? On Jun 13, 2016 8:59 PM, "George Skorup" <geo...@cbcast.com<mailto:geo...@cbcast.com>> wrote: Had a friend at the dispatch company stop by and let us use an Anritsu. It's a very high power signal at 911.5. And it's very narrow, either 1 or 10khz. Maybe 5. I'm tired. On the street with a little 10dBi M2 yagi, we couldn't add enough attenuation to get it to stop overloading even the analyzer. At least we have a general idea where it's coming from. But obviously it's overloading the front end on our Canopy AP, which is at 150' and probably two blocks away. I doubt it's anything amateur. This is retarded. I fucking hate 900! Some googling says 911.5 could be a transponder, locator, HID kinda thing. But it popped up on Saturday at at 1:30 in the afternoon. It was also 101 degrees outside then. I have to wonder if there's a power co transformer or a line spitting out crap somewhere like a spark-gap transmitter. On 6/13/2016 7:27 PM, Jay Weekley wrote: I imagine it could be stronger than that. Looks like the scale stops at -35 Sean Heskett wrote: whatever it is, it has to be right on the same site as you or aimed right at you since it's at a -35 :-/ On Mon, Jun 13, 2016 at 2:56 PM, George Skorup <geo...@cbcast.com<mailto:geo...@cbcast.com>> wrote: Thanks. Not sure why I didn't find that. Not sure what this is, but it sucks. We were on 912 and someone decided to get right on top of us. Now we're at 923 and I can keep only one customer registered (because he's at -45). Looks like we're going to have to abandon 900 at this site. [cid:image001.png@01D1C61C.08C3AB00] On 6/13/2016 3:30 PM, Micah Miller wrote: I believe that this will answer your question: https://community.ubnt.com/t5/Wireless-Networking/Ubiquiti-900-Mhz-frequencies/td-p/454763 On Mon, Jun 13, 2016 at 2:56 PM, George Skorup <geo...@cbcast.com><mailto:geo...@cbcast.com> wrote: Anybody know offhand what the carrier frequencies are for the UBNT M900 at the various channel widths. Is 911 one of them?
