This woudl be better, as you have a metal indoor case around it. * ----------------------------------------------------------- Dennis Burgess, CCNA, A+, Mikrotik Certified Trainer WISPA Board Member - wispa.org <http://www.wispa.org/> Link Technologies, Inc -- Mikrotik & WISP Support Services WISPA Vendor Member* *Office*: 314-735-0270 *Website*: http://www.linktechs.net <http://www.linktechs.net/> */LIVE On-Line Mikrotik Training/* <http://www.linktechs.net/onlinetraining.asp>
The information transmitted (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is intended only for the person(s) or entity/entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient(s) is prohibited, If you received this in error, please contact the sender and delete the material from any computer. Kurt Fankhauser wrote: > Do you think that having each card on a RB433 while being installed into an > indoor enclosure with only 1 card per routerboard with foil around the > indoor enclosure will solve the self-interference? Assuming that the RB433's > are still stacked onto each other. > > Kurt Fankhauser > WAVELINC > P.O. Box 126 > Bucyrus, OH 44820 > 419-562-6405 > www.wavelinc.com > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Eje Gustafsson > Sent: Monday, April 20, 2009 4:55 PM > To: 'WISPA General List' > Subject: Re: [WISPA] is this router overloaded? > > Plus that many radios that close together is a almost a guaranteed to create > self interference especially if they are high power radio cards. Those are > according to MAC Compex radios they do have some highpower but most are not > so might not really be a problem. > > > > I seen people that put XR5 or SR5 radios for example in the MT's on a single > board in a metal enclosure that create self interference between the radios > from what it seems either just to strong side lobes or a internal clock > frequency leakage between the radios. Putting alu foil between the radios > helped out but wasn't until one radio was moved to it's own box the problem > completely was resolved in once instance. > > > > Depending on the powers of the card and it's side lobes you might need > 60+MHz separation between the center channels in non turbo mode. > > > > In this case here one radio card is on 5745 and the other is on 5785 which > means 40Mhz between center channels or total of 20MHz between the channels. > Not very much for the side lobes. If anyone looks at a 802.11a or g signal > on a SA you will quickly understand why 20MHz might not be enough and why > you might need at least 40MHz between the "edges" of the signal. > > And on top of this both of these cards are very busy from the look of it > (one backhaul for the entire system and the other just a very busy AP). > > > > / Eje > > > > _____ > > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Blair Davis > Sent: Monday, April 20, 2009 3:40 PM > To: WISPA General List > Subject: Re: [WISPA] is this router overloaded? > > > > IMHO, too many radios for the cpu speed. > > I don't go more than 3 radio for a cpu <1GHz > > > > > > Kurt Fankhauser wrote: > > I have a RB600 here that I've taken a screenshot of. No interfaces are > bridged, everything is routed and I'm noticing some lag in the traffic that > passes though this device during peak use. I suspect that the 41 RIP routes > might have something to do with it as actual throughput isn't that much > sometimes topping out around 8Mbps. Just want to hear from others and if > there is any suggestions on how I might speed this up let me know. CPU usage > on it is around 40-50%. > > > > > > > > Kurt Fankhauser > WAVELINC > P.O. Box 126 > Bucyrus, OH 44820 > 419-562-6405 > www.wavelinc.com > > > > > > > > > > > > _____ > > > > > > > > > > > > _____ > > > > > > > ---------------------------------------------------------------------------- > ---- > 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/ > -------------------------------------------------------------------------------- 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/
