At 8/6/2010 02:03 AM, Bob West wrote: >SR71 needs to die. The other UBNT cards ROCK and blow those MT cards away. >Sorry MT. I spent much cash or moolah, (Depends on your choice of >vernacular) on your cards They have all ended up in tech laptops or >installed as wireless tech access points. No more MT cards as AP or CPE's.
a) Yes, I like your jokes, at least on occasion, which is probably more than average. b) I'm in the planning stages now, doing the P&L sheets, frequency maps, equipment choices, etc. The SR71-15 and the R52Hn are the two 802.11n 5GHz high power mPCI cards that I can think of, and only the latter fully works with RouterOS at present. Is there another MOMO card that you can recommend for building the multi-hop backbone? The Rocket external radios make more sense for access than the backbone. I suppose I can use Rockets for a couple of critical high-capacity links and use XR5s in 11a mode for everything else that doesn't need the speed... Thanks! >Slavinski- > >-----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. -- 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/
