CEDIA ESPA EST Practice Test

Answer - A - Diplexer is used to combine satellite and OTA signals.

Key Takeaway: A Diplexer is a passive device that implements frequency domain multiplexing. A diplexer multiplexes two ports onto one port; its ports are frequency selective. Diplexers might be used to connect two receivers inside a building to two antennas that are some distance away, using a single cable. A satellite diplexer is used to combine a signal from the satellite dish with a signal from either an off-air TV antenna or cable TV feed into a single coaxial cable. A second satellite diplexer is used to separate the combined signals.