The winegard Wingman attachment has no effect on the boosting or amplification of your antenna. It does, however, help increase the received signal strength on the side of the batwing by changing the reception pattern of the dipole antenna. It is not an active antenna element. Changes the reception pattern into a longer oval on that side. It also seems to help on the backside of the antenna also. Maybe one of our hams or antenna pros can give you some actual numbers. When I had to replace my old batwing, I went to the Sensar IV, which has the wingman built in, and noted an amazing difference! Please note that on some rigs, this cannot be used due to location next to an air conditioner unit.