I have a digital television that was directly connected to my antenna(outdoor). It was connected with a cable length of approximately 20 feet. After a year, I have finally run a cable from the antenna around to a break-out-box (splitter) in my garage to run the signal to all rooms. It (the cable) is now approximately 100 ft. My exact configuration is Antenna > antenna amplifer >> coax >> amplifier >> coax >> television set. My issue is that I used to receive all of the 10 channels broadcasted in my area but now I only receive one? I have ran all checks on my TV for digital and analog channels but only one shows up. As shown on fcc.gov, the channel that I receive is not the strongest? Why can I not receive the other channels I used to get, especially the stronger ones?