sextant 5hnd vs UBNT NB M5 (5km,20Mbps stable)

hi
can i use mikrotik sextant 5hnd for 5km link? i need 20Mbps stable throughput.
if no:
1-what is maximum stable throughput of sextant 5hnd in 5km?
2-can ubnt nano bridg m5 do this? if yes 22 or 25 dbi?

if correct setup, no interferrence etc etc, this should give you about 100Mb/s stable on Sextant.

tanks

(i ask these questions because there is difference between datasheet and reality)
and can i use sxt 5hnd for my 2km link (with 10Mbps stable throughput)?

seems these radios(sxt and sextant) cant use as accesspoint in ptmp link.its true?

Yes, both SXT and Sextant will be good for 2KM link
Watch this video on how to install the SXT (Sextant has similar setup): http://www.youtube.com/watch?v=-KNo1B7K-YY