[RFI] BrightHouse & RFI?
n6kj.kelly at gmail.com
Thu Aug 21 19:30:26 EDT 2008
Wouldn't this argument also apply to the television set manufacturers?
I mean, you would think it would be in their best interest to shield
from ingress too, but anecdotal evidence suggests otherwise. Ask my
next door neighbor :-)
On 8/21/08, Andy <ingraham.ma.ultranet at rcn.com> wrote:
> In the "old" days with analog cable TV channels, the cable companies had an
> extra incentive to keep RFI from their cables low: When the cables radiate
> anything, there is also ingress into the cables (from broadcast stations,
> from ham radio operators, and from other 2-way radio services), and this
> tends to cause herringbone and other interference problems to their own
> customers. So it was in their best interests to use well shielded cable and
> to keep their cable plant in good condition; and in some cases (or so I've
> read), that was enough to keep them on their toes and fix any leakage
> problems before people had a chance to complain about interference from the
> cables out.
> Now that digital has or is replacing analog NTSC on many cable systems, I
> fear that this particular incentive may be largely gone. The digitally
> encoded signals tolerate more RFI ingress before anything goes wrong for the
> cable customer.
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