When Splitting the High Frequencies of Satellite TV Services to feed multiple Receivers, the Loss associated with the splitter may need to be compensated for with the use of an In-Line Satellite Drop Amplifier specific to this purpose and Frequency Range. Consider the need and review the "Satellite TV Amplifier" category for selection.
Also the issue of supplying Voltage back to the LNB(F) may be addressed more resolutely with the installation of a Power Supply and Power Inserter specific to the purpose. Consider the need and review the "DC Power Inserter" category for selection.