Do you have a mast amplifier that works at 12v and you need a power source? The source for housing 12V (220mA) 5796 of Televes, sends power through the input coaxial cable, allowing in turn the passage of the TV signal.
It is inserted into the installation to feed mast amplifiers or a BOSS system. It is compatible with amplifiers with satellite mix (FImix), as it automatically detects in its output the existence of a LNB (voltage and tone) management signal generated by a receiver, and lets it pass to its input.
This source is the one recommended with the 561601 mast amplifier for terrestrial and satellite signal mixing.