M1 antenna setup

I think you may be able to determine whether multiple antenna's will work by doing this. Take your nighthawk close to the tower. Connect the nighthawk to a pc via the USB C cable. Telnet to the router IP on port 5510. Type ""AT!GSTATUS?" without the quotes. This will show you all the bands the router is currently connected to. If you see more than one, I think multiple antennas could be beneficial. The two ports could each connect to the different bands increasing overall speeds. I've corresponded with someone who is actually using a wide band yagi on one antenna port and a parabolic grid on the other with very good results. In that case, you have to know for sure which bands the tower has in order to use the grid because it's a specific band unlike the wide band yagi. I actually just started testing my setup two nights ago. I have dual yagi's @ +/- 45 degrees currently in "<" formation in my attic. I'm picking up band4 and band12. band12 is 700mhz and band4 is 1700/2100mhz. Initial results are promising, without the antennas, the signal is not usable. I plan on testing ">" "V" "<" and vertical for both antennas to see which yields the best results. Also, cabling is important. Currently I'm using 25' LMR400.