Decoupling coaxial cable to avoid "ground loops" |
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| If your remote control won't work when the tvLINK is connected to the TV aerial input, make yourself a decoupled "fly-lead" to connect it to the TV aerial input. (It should never be plugged directly into the TV aerial socket because that puts strain on it, which can damage the socket AND the tvLINK!) |
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| Make two cuts around the outer PVC sheath about 5mm apart, at any point in the cable (but not too near the end, otherwise it will pull apart when you try to strip the cable for fitting a plug). |
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| Remove the ring of plastic to expose the shield. |
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| Carefully cut away the shield foil and braid, making sure that no strands can connect across the gap. |
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| Wrap self-adhesive plastic tape around the cable, pressing it down so it adheres to the white dielectric plastic. |
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| Cut a 5cm strip of aluminium foil and wrap it around the cable with the gap at its centre. |
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| Finally, secure the cable by wrapping tape (self-amalgamating tape recommended) around it so that it adheres to the cable and to the aluminum to prevent movement. A cable which is "decoupled" like this will pass the normal UHF signals unimpeded but will block DC and low frequencies. |
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| Better still, for a really neat and secure job, use our heatshrink tubing. |
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| Read how to fit TV plugs to the fly-lead. |
