AX88U side antenna orientation 45 or 90 degrees?

[Logi]

I have seen drawings with both side antennas at 90 and at 45 degrees, what should be the correct orientation/ position?

 

[L&LD]

Use the 90-degree orientation by default. Only use other orientations if experiments provide better results, and only then in that specific environment.

 

[Logi]

Use the 90-degree orientation by default. Only use other orientations if experiments provide better results, and only then in that specific environment.

Thank you