Originally Posted by nyctveng
80 ft is long but not excessive. your issue sounds more like an issue with quality rather than level. you can good signal level but low SNR. if the cable between basement and 3 floor is subpar and run by you or contractors, no cable company can guarantee service over it. thicker cable or higher signal level from roof to basement will not compensate for bad cabling on the last 30 feet.
if twc techs are equipped with a signal level meter with qam analyzer, they can pinpoint the problem by taking reading on the roof, basement, then bedroom and study. my guess is the lower level techs may not have all the cool tools or knowledge to pinpoint the problem
Agreed. About a month ago, my cable-card and TA equipped Tivo began to experience severe macro-blocking, dropouts, lost channels, etc. The TWC techs sophisticated looking meter indicated that the signal coming in to my apartment was "perfect". Yeah, right.
While he was "troubleshooting", the cable signal and internet connection cut out completely. It turned out that other TWC technicians were in the basement of the building replacing some piece of equipment that was failing.
Minutes later, the signal returned with none of the aforementioned problems. So some piece of hardware in the basement was at fault, even though the signal appeared to be "perfect" when using a hand held meter.
The tech rechecked the signal after the "fix", and it was identical to the signal prior to the "fix". Obviously, some of their equipment either doesn't work or they don't know how to use it.