Wireless Joint

Seems really useful , but idk what it is...wish someone on here could explain...

Thanks. I have at least 5 towers 2 to 5 miles away, rural wooded area,. With 2 15dbi flat panels do work well alot of the time but I do get bounced around alot. Ill probably just order one and see.

Does anyone know if using 2 of the 15 db flat panels at a 45 degree plus/minus performs better than a single MIMO antenna? Ive searched and havnt found any answers to this question.