what is the best setup for a N-Streme Dual link?

I need to push a 20meg fiber connection about 3 miles point to point. I haven’t used N Streme yet. I will probably use 29 db solid dish with RB 532a or RB333 and 8602+S on both sides. Some suggestions?

There is not too much configuration settings for Dual Nstreme,
http://www.mikrotik.com/testdocs/ros/2.9/interface/wireless_content.php#4.13.4

Make sure you are using big enough gap between transmit and receive frequencies, as well make sure antennas are separated with maximum distance between each other.

If it’s only 20 Mbps, you should be fine with just one link.