They've already explained this. The Atheros chipset in the ePMP can discriminate the two paths based on the phase of the two signals in a mixed slant and V/H antenna configuration.

On 12/4/2015 2:23 PM, Jon Langeler wrote:
That would only work if the radio is capable of signal combining or MImo-A and also halves your throughput. You definitely want to match it on both ends

Jon Langeler
Michwave Technologies, Inc.

On Dec 4, 2015, at 2:13 PM, Adam Moffett <dmmoff...@gmail.com <mailto:dmmoff...@gmail.com>> wrote:

The DSP in the ePMP can do some kind of processing to correct for the 45 degree offset when you have slant on one end and V+H on the other. I might not be stating it with the correct technical jargon, but that's the gist of it. They sell a dual slant sector for the AP with the intent to use it with V+H integrated SM.

This is a built in feature of the Atheros chipset, so presumably UBNT radios can do the same thing.

That all said...I would try to match them up as just a matter of principle.



On 12/4/2015 2:07 PM, Joshaven Mailing Lists wrote:
Your AP & SM should always have the same antenna orientation. I promise you that you don’t want slant on the AP and not on the CPE. If the signal is so obstructed that the orientation is screwed up to the point that unmatched polarization is actually a benefit then there is something seriously wrong…


Sincerely,
Joshaven Potter
MTCNA, MTCRE, MTCWE, MTCTCE, UACA
Google Hangouts: yourt...@gmail.com <mailto:yourt...@gmail.com>
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On Dec 4, 2015, at 1:59 PM, Paul McCall <pa...@pdmnet.net> wrote:

We are looking at smaller sector sizes for a 5 Ghz ePMP cluster (60 degree probably), and am considering my options, which might also increase my gain quite a bit. Using a non-Dual Slant sector such as AM-5AC21-60, would increase my options. There have been a calling threads on Cambium’s sites about whether Dual Slant was a big factor at the AP if the SMs aren’t dual-slant. Cambium’s Daniel Sullivan made this comment … The thread was originally about 2.4 Ghz options, so not sure if it applies exactly to 5 Ghz.
Paul



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