I replace cable and satellite with a tv antenna in the attic . I try to use a non-powered splitter on the cable that pass the antenna from the cable breakout box to the new Panasonic 50 '' plasma hdtv in the living room and back down to the breakout box and that be a no go . I have the Kennesaw mountain between I and the Atlanta transmitter so I first add a single output Motorola BDA amp between the antenna and the first splitter but the 15 db up be still knock down by 3.5 db -lrb- or 7 db I do not remember -rrb- by the splitter . the main tv only have the single cable from the one splitter and it be work great but the other tv go through a additional 4 way splitter and that definitely be 7 bd down per output . I replace this 4 way with the bda-s4 and now the other room be get really good reception . on all tv 's Channel 46-1 CBS and 11-1 Atlanta Live be lose during certain condition in the day -lrb- night and rain -rrb- but morning seem to be they best time . I do not think of -lrb- or know about -rrb- use the dual output BDA amp from Motorola in lieu of the first splitter or I might have get better reception on the iffy channel . oh well , what another $ 50.00 ? the hdtv local news channel pop out at you -lrb- do I mention my new 50 '' hdtv screen -rrb- and I think the show be better look than satellite -lrb- because its free ? -rrb- the show I do not get over the air I use Hulu , Netflix on PS3 , or direct to the station web sight on a pc . now I need a good hd-dvr and I be set .