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Downstream SNRM Drops

#21
I wouldn't be surprised. There are many trees hitting the line, one day we will be back to square one. I have noticed that the SNRM can react, sometimes very quickly, to the sun's strength. That would probably back up your idea of the outer layer of the cable becoming exposed.
 
#22
Ideally, you want to get all those trees trimmed well back before you force the ISP to get BTO in and replace the line (Councils like to play "pass the buck").
I hope none of them are in public spaces, because from experience, they tend to be the hardest to get sorted.
My main issue is on a commercial site - I just threatened to start sending the cable replacement bills to them every year if they didnt do something.
 
#26
Ok, so most DS tones above ~400 are majorly impacted when the DS SNRM drops. Any ideas as to what could be causing this?
I am not an expert, but I got told years ago that water inside a cable core acts as a sort of frequency cut off filter - it will let certain frequencies through without issue, but block others.
This was in relation to a leaking TV antenna cable though.
 
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