I have the DB4 antenna at www.antennasdirect.com, but it breaks up quite a bit. I've tried re-aiming the antenna, but no luck, gets better in some directions, but never good reception. My VOOM wineguard worked better, but I know it was powered w/amplifier. Do I need perhaps an amplifier or booster? The installer connected in with the dishes using splitters, I'd say there is a total distance of 100 ft from antenna to receiver. About 25 ft to the splitter. Thanks for any suggestions.