Need to see the cabling in the top box in the loft
And the wiring diagram
Triax Link Modulator - 370419
This looks like a modulator look at this linkWe also have one of these which we think was when we used a magic eye for sky through in kitchen would that be right? View attachment 52721
And the wiring diagram
Triax Link Modulator - 370419
We also have one of these which we think was when we used a magic eye for sky through