Reduces the signal strength and hopefully improves your signal quality figure.What does that do and where do I get one ?
Doesn't really matter too much as long as it is somewhere near the top end of the cable run.Thanks for the information. Somehow it has just reminded me there is a mast head amplifier inplace (although not on the aerial, more in the house where the aerial comes in).
I would try taking it out and see what happens to the figures. If you really do need it, then use the minimum amount of gain necessary.This has a variable dial. It was installed prior to the digital switchover as we located right on the limit for Crystal Palace transmissions and this helped improve the signal. I think I'll try tinkering with that first.