The proper way to hook up the AP-4700 preamplifier is as follows:
1You run a cable from the antenna to (antenna input) on the AP-4700.
2 From the (to power supply) on the AP-4700 you run your cable into the house where the PS-1503 is mounted.
3 At the power supply/injector. The cable coming from the AP-4700 (to power supply) will attach to the (ANT) connector on the power injector.
4 The wall transformer will hook to the connector on power injector marked PWR.
5 From the power injector connector marked TV you go to you TV set or splitter system.