AT&T has "serious" line isolator filters for both Cat5/6 and RG-6 (HPNA).
They installed some in my U-verse setup and they helped considerably in at
least one case (a sensitive STB). Some of the U-verse guys know about these
(and know how to order them out of AT&T) and some of them don't.
Around here (CT), it seems that many of the U-Verse techs are on short-term
loan from other parts of the country, and they vary in their knowledge and
experience of RFI issues.
The filters are labeled "AT&T Westell" 080-500550 (RJ45) and 080-500548
(Type F). Not Western Electric, sigh...
73 Martin AA6E
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