So what I did is put up a 30 foot tower, I installed 2 CM-4221 antennas, almost back to back. One is aimed at Camp Fortune and the other is aimed at the towers near Watertown. In total I am getting 22 stations. The antenna is hooked directly to a Tablo box and it shows all stations coming in a full strength. I did not put an amplifier in the system, and after two months of service all seems good so far.