You can use the Big HD7084P antenna to Test reception of WPSD.
Aim the HD7084P antenna at about 17 degree magnetic compass direction.
Scan for channels.
Digital tuners can develop - Digital Glitches - that are not cleared out with simple channel scans.
Do a Double Rescan ,
http://www.dtv.gov/rescan.html.
If WPSD is reliable received.
Then install a Channel Master CM4228HD antenna aimed at about 17 degree magnetic compass direction.
Return the HD7084P antenna to the original aim direction at about 207 degree magnetic compass direction.
Install a Winegard CC7870 , Hybrid transformer coupled combiner.
And connect the HDP-269 preamp to the output of the combiner so that both antennas are amplified at the same time.