You Betcha! Sarah-
-----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Fred Goldstein Sent: Thursday, August 05, 2010 12:25 PM To: WISPA General List Subject: Re: [WISPA] Multiple sectors, one frequency? At 8/5/2010 01:01 AM, Robert West wrote: >Yeah, the R52Hn does but the sensitivity sucks compared to the UBNT radio. >I use the MT cards only for close range now, seemed great at first but >I was having g issues after a while. My MT boards with UBNT cards, >however, run seemingly forever with no issues. I have 2 433 boards >with XR2 cards that haven't rebooted for over a YEAR! I wish these guys would cooperate more on drivers. I have a site (the injection point) where I really want to blast a couple of 80 Mbps links out of a Routerboard 800, so it has to be MIMO. The R52Hn boards have roughly the same sensitivity specs "on paper" (on PDF?) as the UBNT SR71-15s, and are supported in RouterOS, but I am *not* surprised that a pricier UBNT board, with more shielding and heat sinks, and perhaps a better front-end transistor under that shield, works better in practice. The money is all in the noise for this application (backhaul), but the SR71 family doesn't seem to fully work in RouterOS. Grumble grumble... >But back to the issue, if you MUST run the same frequency, you MUST >wrap your sectors in some shielding in order to isolate the RF from the >other radios. > >A guy in the UBNT forums has such a thing. rfar...@hydrosoft.net >Shoot him an email. He says it makes the other sectors invisible. I suppose I shouldn't be surprised... it's plastic! A little metal goes a long way. >-----Original Message----- >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >Behalf Of Fred Goldstein >Sent: Thursday, August 05, 2010 12:06 AM >To: WISPA General List >Subject: Re: [WISPA] Multiple sectors, one frequency? > >At 8/4/2010 11:50 PM, Robert West wrote: > >A mess. Just run Air View and it will answer your question. As long > >as one radio can see one of the other radios, it's messed up to no end. > >I have seen, however, some pretty nice but large shields that will > >isolate the sectors but in the end, just change the freakin' channels, >already! > > > >The radios aren't up yet. I'm laying out the links map to create the BoM >for each of the nodes. Since it requires multiple hops of radio for >backhaul, in a meshy configuration, some poles need 6 radios. Not a lot of >channel space... especially when you have to coordinate with the three to 8 >other nodes you've got adjacency to. (Okay, to do more than 3, one of the >radios is a PtMP shared backhaul link. Darned 36 dBi EIRP limit... the PtP >end of the link needs lots of antenna gain when it's 15 miles away!) > >The R52Hn does narrow channels too, doesn't it? I'm not sure that the >SR71-15 works too well in RouterOS. > > > >-----Original Message----- > >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > >Behalf Of Fred R. Goldstein > >Sent: Wednesday, August 04, 2010 3:32 PM > >To: WISPA General List > >Subject: [WISPA] Multiple sectors, one frequency? > > > >If I have a site with, say, Ubiquiti Rocket M5 radios plugged into > >120 degree sector antennas, with Airmax (TDMA) turned on, do they have to >be > >on separate frequencies, or can they coexist on one? The > >5.8 GHz band is kind of crowded to be having three access frequencies plus > >two or more backhaul frequencies... thanks. > > > > -- > > Fred Goldstein k1io fgoldstein "at" ionary.com > > ionary Consulting http://www.ionary.com/ > > +1 617 795 2701 > > > > > > > >--------------------------------------------------------------------------- >- > >---- > >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/ > > -- > Fred Goldstein k1io fgoldstein "at" ionary.com > ionary Consulting http://www.ionary.com/ > +1 617 795 2701 > > > >--------------------------------------------------------------------------- - >---- >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/ -- Fred Goldstein k1io fgoldstein "at" ionary.com ionary Consulting http://www.ionary.com/ +1 617 795 2701 ---------------------------------------------------------------------------- ---- 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! 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