I have two SXT ACs installed on a line of sight 200meter link. Below is a video showing a speed test being run using clients on each side (not using the bandwidth test on the SXT) and we getting around 80-85Mbit/sec. Ive tried many different TX powers (the video is shown with both sides set to default) to where its in the -60dBm range and still no change. The band we are using is 5260 on Ceee and there is no one on that band so I feel we are clean there. Ive tried it on 40mhz, same thing. The protocol is NV2 with a passphrase. I tried 802.11 (don't believe I had any security setup, not familiar with how to do that) and that didn't make much of a difference except CCQ was very stable at 95-100%.
I only have 6 firewall rules (to block DHCP broadcast/requests on the link) and with that enabled or disabled, I didn't see any difference in speed.
Any suggestions on what to do? This is my first time using Mikrotik RouterOS products. Btw this link is mainly to connect two houses to share server data between them without having to use the ISP link (each side has their own cable modem).
http://youtu.be/6zl1McJSZFg
Dixit