In today’s information age, the transmission of data has never been more critical for daily living, both in the business world and at home. While families functioned and businesses survived in the age before most of the technology we depend on now was invented, if you try to operate a business that way today, you would not survive in the competitive market very long. In order to get information from the source to the recipient, a considerable amount of cables and connectors are required. This is true even in the wireless age. After all, the signal must somehow get to the wireless transmitter in order to go out through the air.
If you look behind your television and start to trace the cables backwards to where they connect with the cable company’s main line, you will likely see some small devices with the cable connected to each end. These devices are directional couplers. These connectors help to keep the signal flowing to where it needs to be so your television or other electronic device will work. Otherwise, you would turn it on and get nothing but static and a blank screen. Companies like Werlatone are very well equipped and have knowledgeable people available to help you choose the right coupler for the application. While this sounds like a simple endeavor, choosing the wrong one can lead to frustration.
Uni-directional couplers are designed to allow the signal to flow in only one direction. They have connections for the main line and a coupled line. If, for some reason, the signal flow needed to be reversed, it would be necessary to physically disconnect the unit, turn it around in the opposite direction and reconnect it. An example of where these couplers are used is in television reception, where you are only concerned with receiving the signal and will not be sending anything back out via the cable line.
Bi-directional couplers differ from uni-directional couplers in that both ends of the coupled line can act as coupled ports. They lend themselves well to simultaneous monitoring of forward and reverse power.
Dual-directional couplers utilize two uni-directional couplers that are internally connected. They are unaffected by the loads on each of the ports.
If all this sounds a bit confusing, you might want to seek help the next time you need a coupler. While at first glance they may look similar, choosing the right one for the task at hand can make life much easier when it comes to proper functionality of your equipment.