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Cable/Video

SlideshowCable's next big network move: Expanding the upstream

Tom Cloonan, CommScope
Cloonan says upstream data demands have climbed to the point that cable operators will soon be forced to enhance or upgrade this critical part of the HFC network.
Cloonan says upstream data demands have climbed to the point that cable operators will soon be forced to enhance or upgrade this critical part of the HFC network.

HardwareSoftware 3/18/2020 | 7:48:14 AM
Upstream spectrum Of all the nonsense I have read on this forum, this one beats it! Mr. Noolan seems to forget that there are still legacy set-top boxes that still dwell in that midband spectrum he alluded to. he not only flew over the legacy video bands, but also the out of band frequencies that these legacy set-top boxes need for addressability. Mr. Noolan seems to forget that if you increase the maximum frequency of 800 MHz that is the average of most amps highest frequency that most MSOs deploy, then the spacing between node, and line extenders will have to be decrease to mitigate span loss that would result at higher frequencies.Bringing amps closer to do this may not be possible in some cases, and may entail putting additiona amp in. That would defeat the goal reducing line actives with the ultimate aim of N+0. Mr.Noolan did not take into account that ingress becomes a real issue with mid-split, and even worse with high-split given the spectrum that has been given cell phone companies, especially in the 700 MHz band. I think the days of HFC is coming to an end, and cablecos are delaying the inevitable. Once Verizon and other telcos who are deploying FTTH get their act together, the cablecos will be forced to abandon HFC.
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