Some help would be much appreciated. Similar questions have been riased but not the specifics of mine around. In essence I wish to connect four rooms to the RF2 output of my digibox but I already have an amplifier and masthead installed for the main aerial (and need to continue using these). I have an aerial feeding into a Labgear Masthead Amplifier CM7271, this then feeds into a Labgear MSA421 4 way signal booster. From the MSA421 four room sockets are distributed signals from the aerial only. I now have sky and wish to use the RF2 (power is enabled) output to feed these 4 televisions with both Sky and terrestrial tv. I conveniently have a spare coax line in my wall socket (used to be used for FM I guess) where the digibox is and I have successfully connected this to the digibox RF2 output and received sky in the loft. However, I now wish to use this spare co-ax to connect to all four rooms in the loft to feed them Sky/terrestrial. When I tried disconnecting them from the MSA421 and connecting them to the RF2 cable via a Y splitter the picture was illegible. I tried using a 4 way masterplug signal booster (using the RF2 output cable as the UHF input to the masterplug and the four rooms as the 4 outputs) and this seemed to work OK but I am concerned about having two amps in the loft, which surely isn't needed? Any ideas how this can be easily achieved with the minimum of equipment would be much appreciated.