Re: [WISPA] Ever wonder how bad RB333/444 stacked cards interfere?

[Blair Davis]

The following is IMHO... YMMV... Only the R5H. Bought a lot of 5 a while back.  Price looked good vs XR5.  Started testing them... when hooked to the same ant, reported noise floor varied by 10db. tx power, as reported by the other end of the link varied by 7db. Units with strong tx had high error rates at higher modulations. thought bad batch, swapped out 4 of them.  1 of the new ones was ok, other 3 as bad as ones I swapped.  Returned those 3 for credit. used the 2 I had left in CPE's.  one went deaf after T-storm, (lost 20db of sensitivity)  Other still in service. My XR5's all match on reported noise floor within 2db. Tx power matches within 2db I've never had any  XR's bad out of the wrapper, and only 1 failed in the field.  (direct lighting strike) MikroTik makes great router software, and has learned to make good SBC's  (routerboards)  IMHO, their radio cards are 'not good'.  (i'd have used another word, but I don't want banned from the list!) Ubiquity makes GREAT radios.  And good CPE's.  They can't make good software for an AP or router if their lives depend on it... I use routerboard with XR cards for my AP's and backhauls... I use Nano's, Loco's, and bullets for my CPE's now. MikroTik and Ubiquity together.  I just wish I could load Router OS on my Ubiquity CPE's Kurt Fankhauser wrote: What ad luck did you have with the mikrotik cards, and also what model card did you use? I only use the R5H from them.   Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com     From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Blair Davis Sent: Friday, April 23, 2010 10:27 PM To: WISPA General List Subject: Re: [WISPA] Ever wonder how bad RB333/444 stacked cards interfere?   I'd love to see the same test with ubiquity XR cards.... I've had such bad luck with mikrotik's radio cards I don't use them any more Because of the channel overlap, I've always put only one xr-2 or xr-9 per metal enclosure. However, I often put two xr-5 cards in the same enclosure, and separate them by 2 channels or more, and do the same with CM9's on the 5.x bands.

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