Yea, it's wrong. Try something besides MCS14 or MCS15 on their 
calculator, or a better link calculator. I've got NB22's with +25 
deployed at 10 miles.

Regards
Michael Baird
> http://www.ubnt.com/linkcalculator/
>
> Says that this would be a marginal signal at 10 miles. (16090 meters) for the 
> PowerBridge M5  link margin 14.4
>
> Steve Barnes
> RC-WiFi Wireless Internet Service
>
>
> -----Original Message-----
> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On 
> Behalf Of Michael Baird
> Sent: Friday, July 30, 2010 11:28 AM
> To: WISPA General List
> Subject: Re: [WISPA] MIMO 5.8 GHz panel antennas?
>
> They have a Powerbridge M5 that includes a 25 db MIMO panel.
>
> Regards
> Michael Baird
>    
>> I wonder if any of you have experience with 5.8 GHz MIMO antennas.
>> I'm trying to design a point-to-point link, about 10 miles, that will
>> carry a high percentage of a whole network's backhaul.  So I'd like it
>> to go at about 80 Mbps, MCS 12 in 20 MHz.
>> The UBNT SR71-15 card can plug into a Routerboard and thus feed two
>> antennas, or a dual-polarized antenna.  I'd rather have one antenna
>> than two.  I can find dual-feed 2' dishes, but they're on the large
>> side, with wind load and visibility issues.  And I see a lot of
>> single-feed panels, which can handle 11a-type traffic.
>>
>> I can run Ethernet into an external radio that comes in a panel, but
>> that adds a hop and more complexity, and frankly most of the specs
>> don't match the SR71-15's.  There will be at least three antennas at
>> each end, possibly four (backhaul plus local access).  MiniPCI radios
>> in, say, an RB600 seem easier to deal with.
>>
>> But who makes a standalone 5.8 GHz dual-polarized panel, something the
>> 22-25 dB range (13-16")?  UBNT makes MIMO sector antennas, and makes
>> panels with built-in radios, but it doesn't seem to have a PTP panel
>> antenna to mate with the SR71-15.  ARC has one that works with its
>> built-in enclosure system; do I just leave the enclosure empty and
>> route the cables through it?  (Seems hokey.)  RADwin has one designed
>> for its own system; I don't know how well it would work otherwise and
>> it's way expensive.  Suggestions?  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/
>
>
> --------------------------------------------------------------------------------
> 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/

Reply via email to