Gabriel (General Dynamics) used to make a 2 ft HP dish that was affordable, P/N HQF2-52-N. I think Tessco and Last Mile Gear used to sell them, but I can’t find them anymore. Jirous makes a shrouded dish.
From: That One Guy /sarcasm Sent: Friday, July 03, 2015 10:03 AM To: af@afmug.com Subject: Re: [AFMUG] high noise floor ideas? first, try to source the noise, it could be something as simple as a tech AC router somewhere on premise, at leasy do a sweep 360 degrees to see if you can locate the direction of the noise. If youre able to move your gear and there is structure you can get between you and the noise that helps because you eliminate it without adjuncts on the device. If its coming from the same direction as the other end of the link, I dont think there is alot you could do. If you have the room for a radiowaves 2' HP antenna those knock down a ton of interference, we have been putting rockets on them with really good success, but its an 800 dollar antenna the last time we got one and that was a deal. You could also try splitting out the chains to separate antennas to see if you get some diversity. We had a radiowaves on a ptp 500 with noise on one end that we couldnt get resolved. We switched to seperate 1' Alvarion antennas with 6 foot verical and 2 foot horizontal seperation for no good reason other than they were laying there and for whatever reason we dropped power but the spectrum cleaned up, I suspect it was the direction of the interference and the fact that the two panels arent probably completely aligned with each other. You can also deploy a massive EMP and take out all sources of interference On Fri, Jul 3, 2015 at 1:17 AM, Rory Conaway <r...@triadwireless.net> wrote: On one of the buildings we are on, we used Jirous because of the integrated shroud. There are several other antennas up there, most with RF Armor and a 34dBi dish that has the Ubiquiti shroud on it to minimize the noise. Rory From: Af [mailto:af-boun...@afmug.com] On Behalf Of Rory Conaway Sent: Thursday, July 2, 2015 11:14 PM To: af@afmug.com Subject: Re: [AFMUG] high noise floor ideas? Do you have shield kits on the antennas? Rory From: Af [mailto:af-boun...@afmug.com] On Behalf Of Jon Langeler Sent: Thursday, July 2, 2015 7:51 PM To: af@afmug.com Subject: Re: [AFMUG] high noise floor ideas? Mimosa B5c with ubiquiti dishes. 11mi link. time for bigger dishes I guess Oh yeah Sent from my iPhone On Jul 2, 2015, at 10:02 PM, Ken Hohhof <af...@kwisp.com> wrote: Well, a little more information might be helpful. You say links, does that mean these are PTP links? Same antenna gain as the other links that have lower noise floors? How big an antenna? Could this link have more gain, or be pointed at a distant noise source? What kind of radios? Bottom line, there is one way to eliminate a bad radio as the cause, and that is to replace it. You could also try turning off your other radios briefly during a maintenance window to see if they are bleeding into this one. From: Jon Langeler Sent: Thursday, July 02, 2015 8:35 PM To: af@afmug.com Subject: Re: [AFMUG] high noise floor ideas? Haha. No but it looks like one device that decided to take the whole band and add a 10db noise floor. we are used to -90 then a bunch of -60 signals in 20Mhz and at most 80Mhz chunks. Just thought if I was missing something Sent from my iPhone On Jul 2, 2015, at 9:12 PM, Mike Hammett <af...@ics-il.net> wrote: Where Jon's at there are more trees than people. Shouldn't be a lot of 5 GHz there. ;-) ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------------------------------- From: "Gino Villarini" <ginovi...@gmail.com> To: af@afmug.com Sent: Thursday, July 2, 2015 8:04:41 PM Subject: Re: [AFMUG] high noise floor ideas? -80 high noise floor????? On Thu, Jul 2, 2015 at 8:59 PM, Jon Langeler <jon-ispli...@michwave.net> wrote: We have a link with an unusually high noise floor of -80 across the board at a very remote location. Other ends of the links and other links at the tower are seeing -90 noise floor through the band which is expected. Any idea why we would see the higher noise floor on a link end that's across the whole 5Ghz band that should be very low? Sent from my iPhone -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
