Has he installed the antenna? If so, does it produce reliable reception of the stations he desires? If so, simply install a splitter.
If not, then return the amplified antenna and replace it with a Winegard HD7694P or Antennacraft HBU-33... Pointed at about 305° to start with.
Mount outdoors, clear of obstructions, including the roof and any other part of the house.
Try this with no amplifier. Use a passive splitter.
Perform this test during the installation:
http://forum.tvfool.com/showthread.php?t=13646 If the need for an amplifier is proven, simply add a Channel Master CM-3410 between the antenna and splitter.