This diplexer is used to combine Wideband TV signals with Satellite IF signals. The DIP 2 has high isolation to prevent satellite LNB noise interferring with the terrestrial signals of harmonics of the terrestrial signals The DC from the receiver passes through to the SAT side of the DIP 2 to power the LNB The DIP 2 is designed for outdoor use. SPECIFICATIONS TV Port 47-860mHz Insertion Loss 2dB Max Isolation 40dB Min Satellite Port 950-2150mHz Insertion Loss 3dB Max Isolation 30dB Min Current Passed 1A Max Outdoors Yes