Question about short link with SXT Lite 5

RouterOS Wireless Networking
1

Hi, I try to setup a wireless link with Mikrotik SXT Lite 5 between 2 building that each one have 2 floor (about 10 m height) and distance about 200 meter. there is no Higher Building between.
I have 2 question
1-what Height I need for antenna above the roof.
2- How much Tx power should applied for best performance?

This is the site I setup the link. all building have maximum 2 floor. and I have visual contact to another location from roof but now sure how much height need antenna for link together.

2

According to the calculation of the Fresnel zone , for the distance and frequency of the question , must install at least 2 m height in relation to the highest obstacle .

3

If visibility is clear, sounds about right. Distance is short, so 2m should be fine

4

Ok. This is the setup. I apply 1 or 2 db tx power but cant get it work. Is it to low to the buildings roofts? the AP side is 2-3 meter higher than station and I apply some angle to both side.
I can’t see AP on Station with 5GHz-A/N 20/40MHz Ce Frq: 5775

Station Side

5

This should work fine, probably a configuration mistake. Include your configuration exports.

6

If I set Channel Width to 10MHz or 5 MHz station could see AP in scan but not connect. in 20MHz it can’t see AP.

7

Both ends should have the same frequency width set. I would like to see station side to fully adapt this setting from the Ap side too. Start with full power regulatory domain setting and rise the antenna gain value incrementally to finetune the tx power on both sides.

8

I just set both of them to 10MHz for Test. I reset them to default now. Nothing change from default.

9

Ok. Thank you every one. Its UP! apparently I used wrong frequency!
So I set the AP & Station Tx power manually to 1 db and both Antenna Gain to 1 dBi. Should I has to set all them manually or just AP side is enough?
This is my status now. Is it sound good? any suggestion to Improvement? I need to get Maximum speed Here.