Set of Wap60g / align antenna ?

Hello
I have a set of wap60g and a distance of 120m to bridge. What it means TX Sector 33 and TX Info right 19 degrees, up 3.8 degrees.

And when I look to Status and MSC it vary often between 40/4 up to 60/7 dont know why.

Do I need really need a absolute free sight point to point ?
Thanks