How does a TV splitter work?

Thanks John, that one does indeed seem to answer my question. If the device is properly designed then sending a signal into the 2 outputs (now inputs) will cause a signal at the input port that equals (input1 - 3dB) + (input2 - 3dB). And there will be no output from either of the 2 input ports. That of course assumes ideal conditions which probably don't apply, but at least the results will be in that ball park.

I can see that you have a lot more patience with Google than I do. When I see a long list of things in the search results that don't apply I give up pretty quick.

Thanks Again.

Bill

A resistive splitter will have a theoretical minimum 6dB loss. 3dB from the split, and 3dB from resistive losses.

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Thanks Bill, When I saw the magic T, I thought it was about one of these gizmo's

George H.

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Ahh, Thanks John, The two transformers are as shown in figure 4, One for impedance matching and the other to do the splitting. (?)

George H.

Well, I have worked with RF circuits at one time, and may even have come in contact with one of those things upon a time, but it has been a while, and I have forgotten most of that sort of thing.

Bill

Fred Abse Inscribed thus:

Agreed !

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no resistor. it was cheap one, hard, brittle plastic shell, "PAL" connectors made from pressed steel arranged with their axes in a Y formation zinc plated steel skeleton, no pcb, just bits soldered together.

It woked sort of, but there was interferance between the output ports, put the tv on one channel ad the stuff on the opther port would get noise on a different channel adding that resistor would have no doubt helped, but back then I'd not even heard of a hybrid. only knew how to solder it back togethern after someone tripped over the antenna lead, or jammed it against the wall etc.

-- ?? 100% natural

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