2x2 mimo MIMO antennas for TMobile Internet Router

[Cptdondo 0]

I have a TMobile Internet router: https://www.waveform.com/a/b/guides/hotspots/t-mobile-5g-gateway

I am halfway between two towers; each is about 5 miles away. My signal is OK.  One tower is B12 B66 and B71; signal -65bBm - call it Tower 1.  The other is B12 and B71; signal -68dBm - call it Tower 2.

The towers are about  180* apart.  They are almost line of sight - there are trees and possibly a small rise in the way.

I can add a 2x2 MIMO and aim it Tower 1.  Or I can add a 4x4 MIMO and aim it at Tower 1 or 2.

If I go with the 2x2 MIMO aimed at Tower 1, should I consider a second 2x2 and aim it at Tower 2?  Would that just scamble signal?  Am I better off with the 4x4?

Any ideas on how to proceed? Those antennas are expensive for my budget so I don’t really have the cash for a do-over.

[Admin 2561]

,,,,for outdoor antenna I think you should read this post ... !!!!

https://www.reddit.com/r/tmobileisp/comments/l93wym/how_to_use_an_external_antenna_on_the_tmobile/

,,,and this...

 

[Admin 2561]

,,, you can build such an antenna....???