The Following is a Teleview Recommendation for Tv Reception.
To prove Tv reception , do this test , aim the antenna at about 300 degree magnetic compass direction. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Run a known to be good long RG-6 coax from the antenna through a open door or open window direct to the Tv , no couplers , No splitters , no amplifiers , no nothing.
Scan for channels.
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After proving reception.
Replace ALL of the Hodgepodge of coax with all new RG-6 , quad shield is not required but you can use it if you like.
The compression type coax fittings (not the crimp type) will help seal out water.
Here are High Quality Power Passing splitters.
To be used if preamp power is to be passed through the splitter.
HFS-2D , 2 way splitter.
HFS-3D , 3 way splitter.
HFS-4D , 4 way splitter.
http://www.hollandelectronics.com or
http://www.solidsignal .com.
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Do not chain splitters one after the other , one splitter connected to another splitter connected to another splitter , eash time a split takes place the signal strength is reduced.
Use only one splitter and coaxes out to the Tv locations.