That really only makes sense if the links will have asymetrical bandwidth 
shaping otherwise you are just wasting capacity. Run them in parallel and load 
balance them or use the second as a backup. 

And DP antennas would be a cost effective way to go and would guarantee 
polarity isolation. Balance the RSL levels on both links and you should be able 
to operate on the same channel depending on the radio's C/I ratio

Bob
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Andrew MacLeod <amacl...@ethericnetworks.com>

Date: Sun, 12 Apr 2009 16:45:08 
To: WISPA General List<wireless@wispa.org>
Subject: Re: [WISPA] STP for redundancy on two panels horiz/vert oriented?


I would concur with Josh. I would use OSPF and run the links  
unidirectionally that way in essence you get a full duplex link, but  
still have redundancy should a link go down.

Also, why use two antennas? MTI makes a nice dual polarized 23 dbi  
antenna.

Andrew MacLeod
Network Operations Manager
Etheric Networks
877.541.3905

Sent from my iPhone

On Apr 12, 2009, at 16:33, Josh Luthman <j...@imaginenetworksllc.com>  
wrote:

> I would suggest OSPF bridging so you can use both of them as long as
> they're working, if not then it just uses one.
>
> On 4/12/09, Rogelio <scubac...@gmail.com> wrote:
>> Using a dual 5.8 GHz radio solution, could I conceivably give myself
>> some sort of redundancy by doing the following:
>>
>> --two 23 dBi panels, one on each radio
>> --on panel for horizontal orientation; the other, for vertical
>> --put a switch on both sides that supports spanning tree
>>
>> I have LOS between these radios, and I'm assuming that it would be  
>> rare
>> to have both polarizations go out at the same time.
>>
>> Does this sound conceivable?
>>
>>
>>
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>
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> Josh Luthman
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