My posts recommend the HD7000R antenna not the HD7694P antenna.
Here are High Quality splitters.
http://www.hollandelectronics.com , also available at ,
http://www.solidsignal.com.
HFS-2D , 2 way splitter.
HFS-3D , 3 way splitter.
HFS-4D , 4 way splitter.
Who knows what other devices are connected to the other coaxes through out the building.
The devices might be putting AC or DC power in to the coax system.
The holland splitters will prevent power back feeding.
Another way to do it is use a Non power passing splitter.
Many people think that the way to get better reception on a cobbled together multipul outlet coax system is to use amplifiers and etc.
This makes the problems worse , so people think , get a more powerful amplifier , and the problems get worse and then the people add filters and signal helpers and connect another antenna to the coax system inside their apartment , etc. , etc , etc .
The best and correct way is correct system problems.
So why am I providing all this information and more??
These key words that bluefull said , I am thinking of getting a small antenna and running a coax down just for my self.