Diplexers are used to combine or separate different frequency signals. They allow for off-air and satellite signals to be run on the same feed line. This saves time and installation cost. Diplexers are commonly used in pairs.
Features:
Separates or combines off-air TV-antenna and satellite signals from or onto a single feed-line
Mixing or Diplexing 900-2150 MHz and 40-860 MHz Bands
A: Many devices aren't designed to take in DC power so you would want to use a DC power blocking splitter to make sure that your equipment doesn't get fried. They stop the DC voltage from getting through thus protecting your antennas TVs amplifiers etc.
