Hi check the below link
http://wiki.mikrotik.com/wiki/Hotspot_server_setup
This will provide you step by step information.
+1 very useful questionHow can i change port name or add some description to port ?
My friend his using this antenna in his resortPlease check this antenna.
http://www.itelite.net/en/Katalog/Multi ... al-HV.html
Make schema from your network pleace