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The house is off the grid.
As a way to reduce power consumption.
Reception can be Tested without and with a preamplifier.
When Reception is Tested without the preamplifier.
All parts of the preamplifier will Not be connected , preamp unit , power injector, power supply.
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When Testing reception without the preamplifier.
The 2 antennas , DB8e and HD5030 , are combined with a.
UVSJ= UHF/VHF - Separator/Joiner.
Connect the DB8e UHF antenna to the UHF connection of the UVSJ.
Connect the HD5030 VHF antenna to the VHF connection of the UVSJ.
The remaining connection of the UVSJ is connected to the Tv/s.
http://www.amazon.com/Antennas-Direc.../dp/B008PBTPN4.