Coax taps are used when one video source feeds multiple displays in the same location. This quad port coax tap has one feed through port and four tap ports. The feed through port typically will go to the next coax tap in the line. The tap ports will be used for the displays.
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.
Q: What’s the difference between a coax splitter and a coax tap?
A: A Tap is used in traditional cable installations to make a transitions from the feed line to runs throughout the building. The feed line is designed for long runs from the source and the taps are used to breakout the signal from the feed line. Taps usually will have one low loss port and one port with higher loss. The low loss port is used to connect the feed line. The port with the higher loss is used for the display.
A splitter is used to split one feed line into multiply signals. Each output of a splitter will have the same signal strength. When you split out the signal you only send half as much through each line. It is important to not 'stack' splitters since this loss is additive. Stacking too many splitter may cause your display or device to not function correctly.
