Wireless Joint

Well, in the summer I only get band 12, according to my router. I'll paste a screenshot if anybody wants to see it. So if I'm getting CA for the first minute, it must be band 12 aggregated with band 12. I think I've read that's possible.

I live in the country in Maryland, in between lots of tall trees all around. I have AT&T, and the only tower near me (3 miles) has AT&T bands 2. 17, and 12. My router only shows 12 all through the summer while the leaves are on the trees. In the winter it sometimes show 2 and I get CA. After...