Hello JuiceKing,
See our SA44B hardware manual.
https://relatedcontentdemo.kinsta.cloud/sigdownloads/SA44B/SA44B-User-Manual.pdf
This information is in section 3.1.1 but I realize now there are better places to put this information. I will add this information to the RBW limitations for the future.
Regards,
A.J.