http://i.mt.lv/routerboard/files/SXT-G-5HPnD-SA-qg.pdf

It says 16dBi but the spec sheet says 13dBi.

Currently I have regulatory-domain setup for 16 as I just read it straight from the quick guide in the box. However, if it's definitely 13 I'll change it.

Thanks.

Looks like a copy-paste error from the standard SXT. The SXT-SA has a sector antenna with a different dBi.