I just ordered a new set of dual polarity antennas for a new BTS we are setting;
My setup goes like this:
AP Side >>> Mini PCI F50 Pro + 17 dbi Sector (Single polarity)
Client Side >>> Mini PCI Compex + 30 dbi Grid

Singal was -56/58

New setup goes like this:
AP Side >>> R52Hn + 16dbi Sector (Dual Polarity) As per the vendor tells me
Client Side >>> Mini PCI Compex + 30 dbi Grid

New signal level - 85/90

What has gone wrong please suggest?
I suspect the dual polarity sector. May be it is not 16 dbi but just 8/10 dbi.

Check that you are using both chains for tx as well as both for rx.

Check that you are using both chains for tx as well as both for rx.

YES. I have chain 0 and chain 1 both tx and rx ticked.

Try to verify the sector antenna data.
As a rule of thumb a dual pol antenna needs double size
for the same gain. May be you're at the edge of the
sector? You loose 3db spreading power to 2 polarities.

Try to verify the sector antenna data.
As a rule of thumb a dual pol antenna needs double size
for the same gain. May be you're at the edge of the
sector? You loose 3db spreading power to 2 polarities.

The client what i am talking about was connected initially with a Grid as it was the only client.
Then we had more clients so we got a single polarity sector to replace the grid.
Then we had a few clients where we had the SXT's and 711-5hn hence inorder to use the "n" we order the dual pol and moreover we r running the dual pol successfully on another base.
All other clients may be on edges but this one we r testing on is very str8 in line with the sector.

I don't think that since the client end is not "n" it should affect. Neways I have not yet put it on 5Ghz A/N. Because if I use that everything goes off completely. So it is only 5Ghz A so far