Joe M: I can tell you right now that there seems to be far more CATV systems in the US that are far outside of the CLI standards than there are that are within the "acceptable" CLI standard. Our system happens to be one of the companies that tends to invest greatly in infrastructure maintenance rather than subscriber growth. Every field technician is required to maintain a weekly driveout log, always have his CLI detector on in his truck and fix any leak found immediately if detected over 5 mv/m. For every "leak" we find, I can point out *hundreds* in adjacent systems in rural areas operated by much larger companies.
And it will likely end up with even more trouble calls to correct ingress issues - an ATSC digital carrier on top of a NTSC analog carrier makes for a much worse picture than the mixing of two NTSC signals ever did. I think locally we're probably the exception to the industry - for every 5 field technicians working installs/trouble calls/disconnects, 1 advanced tech is working on CLI/CPD... In the TimeWarner system to the east of us, that ration is more like 100:1... 73s, AJ, K6LOR On Fri, Jan 9, 2009 at 12:21 AM, MCH <m...@nb.net> wrote: > That will be a loss for all RF users because where there is INGRESS, > there is usually EGRESS, too (and often to the point it's not legal). > Cable is supposed to be a closed system. As you said, the problem will > still be present - just not dealt with as swiftly - if at all. > > The only ones who should be offended by the above statement are those > who promote running illegal systems, so please consider that before you > reply. > > Joe M. > > > AJ wrote: > > As someone that works in the CATV industry... > > > > I'm truly looking forward to the analog-shutoff in February... > > > > No more "ghosting" trouble calls due to ingress... > > > > Granted, those T/Cs will be less frequent but the problem of > > ingress/egress will still be present... > > > > > > Oh well :) > > > > I can tell you that our install volume for homes that have never ever > > had cable has jumper 400% since the coupon program ran out of money... > > > > > > 73s, > > > > AJ, K6LOR > > Boise, Idaho market > > > > On Thu, Jan 8, 2009 at 9:38 PM, <n...@no6b.com <no6b%40no6b.com><mailto: > n...@no6b.com <no6b%40no6b.com>>> > > wrote: > > > > At 1/8/2009 08:02, you wrote: > > >Tom, > > > > > > > > > >I do like the suggestion about the pre-amp - I may give that a try > > this > > >afternoon (if it isn't too cold in my attic!) and I'll report my > > results. > > >(BTW - mine is not a "hardware store" variety, it's a Winegard > > that I spent > > >probably $70 on about three years ago.) > > > > Preamps aren't going to help if the problem is multipath distortion. > > From > > what I've been told, the 8VSB format that our DTV uses has poor > > multipath > > tolerance. Notice how there are no DTV Watchmans available. When > > Feb. 17 > > arrives I won't be able to watch TV during my weekend walks anymore. > > > > I think DTV is like D-Star: on paper, & in good broadband path > > conditions, > > digital will outperform analog. However, in many real-world scenarios > > digital falls apart due to its intolerance of phase distortion. > > > > Bob NO6B > > > > > > > >
