>>12302300
Unfortunately you will want to visit your local cell tower and understand that your cell phone outputs nominally three watts and typically much less.
You'll learn that frequencies are re-used in small geographic areas with other sites interposing.
You'll learn that towers don't put signal very far at all outside of their cell - per design.
Now, knowing that they have a small 10sq mile broadcast footprintโฆ
Reconcile the MASSIVE cabling at these locations. Soup can thick.
I'm the sauce. Sorry you want an authority but go ahead and look into it yourself.
These are easily capable of hundreds of thousands if not millions of watts output.
EASILY.