Noise Floor problem on RB911

RouterOS General
1

I tested last version of v6.35rc2 and same with v6.35rc5 with RB911 which working as ap bridge on band 5GHz-A/N/ac. These screen shoots with wireless-fp package

and same unit with same time with same antenna but with wireless-cm2 package

is there anyone can explain to me why these differs in Noise floor
same for connections signal to noise values with wireless-fp package

and with wireless-cm2 package is

is there any logical explanation for this …is that bug ?
as I can see there is some thing wrong in Noise Floor calculation . I tested that with different versions and findout this problem started at V34
anyone can conform that or add some comments.

2

Any one can conform this issue ? I am sure there is something wrong in noise floor calculation with version 6.34 on wireless-cm2 packet. please make some testes and update this post.
regards