What did you mean by a one year old power booster? The winegard antenna has an amplifier built in. If you put another booster in line, the amplifier in the antenna is not getting any power and will not pass much signal. The winegard antenna amplifier power supply is, at least in my trailer, in the wall box near the living area TV. There is a switch on it, and an LED that indicates that power is applied. The wiring in my trailer had been modified such that the cable input had been converted to another output to drive an outside television. It took a while studying the manual to sort it all out.
Al and Missy Waschka
2013 Dodge 2500 Laramie 4x4 Cummins (Buzz II)
2001 Safari 25 RB Twin (Slinky Dog)
WBCCI 1322, TAC FL-39, AIR 82265