![]() ![]() ![]() This will provide a measure of the VSWR, minus the losses associated with the coupler itself. An example of this, is to use a bi-directional coupler, or perform multiple tests with a directional coupler, and measure the incident and reflected power through a transmission line. This could be especially bad if a matched terminated port fails becomes a reflective load, leading to damaging power levels on the main transmission path.ĭirectional couplers are commonly used in test and measurement applications. Moreover, if the terminated port power exceeds the power limits of the terminator, failures can occur. However, if the terminated port is a short, open, or a mismatch to the characteristic impedance of the transmission line, then the power at that port will be reflected back to the main transmission path. If the termination is set to the intrinsic impedance of the transmission line, often 50 ohms, then the energy in that terminated port should be absorbed with minimum reflections. ![]() Generally, a 3-port directional coupler with a precision internally matched termination will allow for higher directivity than a 4-port directional coupler with an external termination.Īnother factor to consider is the type of termination at the terminated port of a directional coupler. It is common for the coupled port to be rated at a lower power level than the main transmission path, and if the main transmission path power minus the couple strength exceeds the coupled ports power handling ability, failures can occur. The less coupled the ports, the lower the insertion loss. It is important to note that the amount of coupling offered by a directional coupler directly impacts the theoretical minimum of the insertion loss of the main transmission path. Variations of bi-directional couplers exist, called forward coupler and reverse coupler, which impact which of the coupled ports is coupled to the forward or reverse port. There are two main types of directional couplers, a standard directional coupler with a single coupled port and a terminated port, and a bi-directional coupler with a forward and reverse coupled port. As isolation from the coupled ports to the main transmission path is desirable, directional couplers typically have high isolation among the ports. Our products are backed by our amazing warranty and a satisfaction guarantee, including 100% US based customer assistance.Directional couplers are extremely useful passive RF components capable of extracting a small portion of the energy from the main transmission path, and redirecting it to one, or more, coupled ports.We are located in Utah, "The Beehive State," here in America where we have become a leading manufacturer and provider of high quality and durable electronic accessories along with OEM parts and replacements.All of our high quality products are brought to you by our Family owned and operated company.Also installs easily to most wallplates.Įffectively handles signals for major cable television, satellite tv and internet providers, including:Īll of our high quality couplers, coaxial cable extensions, female to female coax connectors, cable TV coaxial cables and DIY electronics are brought to you by: By providing a reliable and durable signal transfer, our 3GHz rated coax couplers offer high quality, weather resistant connectors with low signal attenuation and support for both, audio & video use. Featuring easy to screw in F-pin connections, this coupler is designed for indoor and outdoor use, seamlessly connecting, joining and extending the length of RG58, RG59, RG6, and RG11 coax cables. This cable extension adapter connects two coaxial video cables for TV's, DVD's, DVR's, VCR players and more (including compatible modems, antennas and other analog setups). Manufactured From: High quality, weather resistant material with extremely low signal attenuation.Perfect For: DIRECTV, Satellite Dish, Cable Internet Svc (including Comcast, Cox, Charter, Verizon Fios) and off-air antenna systems (Rated to 3GHz).Accommodates F-Type Connector Pins: RG58, RG59, FG6, and RG11 coaxial (750hm) Cable with wall plates for indoor and outdoor use.Easy to Use: Joins two coaxial cables with male F Type connectors together. ![]() Coupler Perfect For: Combining two video cables or extending overall length of your Cable TV internet connection cable. ![]()
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