Sorry cant answer about Airmax sectors, dont know them

Post in your section here http://forum.tp-link.com/forumdisplay.php?39-300Mbps-Wireless-Routers

Don't use DFS channels Check MAXTream is disable on 510 They have to be in same channel

Sorry out of ADSL in Mexico ISP provides for free ADSL modem router, never need it to buy one, that's the reason I know zero on ADSL

vinoswald wrote HI Danymarc, are you trying to say that WBS510 is not recommended for PtMP using SECTORIZED antenna? If for Long-distance PtP, what is the maximum antenna gain does TP-LINK carry to...

This device is meant for PTPs up to 50 kms. not for Hotspot For indoor they already have the EAP, for outdoor you have the CPE210, later they will come with sector antenna here...