REPASSAC – 3 minutes ago »
Graham,
Following on from your thoughts – that the signal improves when the Sky unit is on.
There is no way one LNB circuit should interfere with that of another feed.
Do you think this suggest that the LNB is starting to fail (on that feed anyway)?
There is a way, some Sky boxes are known to have power supply issues creating dirty DC output. It doesn’t affect the Sky box itself but does affect other kit connected to the lnb. Turning it off at the mains removes the issue on other kit.
Could well be the lnb itself.