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ROHN 25G Towers
ROHN Telescopic Masts
RF Directional Couplers are like splitters in that they can feed two lines from one, or combine two signals into one cable or feed. The insertion and coupling loss is different however, when compared to a simple two way with an equal split of one half, or 3 dB. The Directional Coupler will "Tap Off" Some signal to feed a local TV or similar component and send the Majority "Thru" to continue on down the Line to Continue or Repeat this Excersize over and over again. This type of Distribution occurrs in "Loop Run" systems that essentially run one cable past each user in a "Loop", Tapping signal to feed each as it passes. In a more Domestic Situation, a coupler is handy to feed a device close to the origin of the signal and send the majority through a relatively long run to feed other devices at the end. Another Situation would be that one device simply requires more than the other and both would be Accomodated using this Device. They are typically rated in dB as to the Loss incurred from "Input" to "Tap" leg.
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