The coax cabling is pretty old at our house, which is what I am fixing.
There is a coax splitter (there are others too but that doesnt matter right now) which has only 1 cable out, so actually it is only a extension, although it has 3 outputs (so 2 is empty).
The question is: Is it losing signal? If you may not understand, I mean this : PICTURE. Will the outcome be "1" or "1/3" ? The dBs are not matter rn.