AZwldcats
Ummm That's Right
join:2001-02-20
Tucson, AZ
clubs:
| reply to DonLibes
Re: Render CableCards useless?
What is SDV?
SDV stands for Switched Digital Video, a scheme where not all TV channels are broadcast out from the cable headend to the homes that it serves all of the time. This is attractive to cable companies, because they can offer more TV channels than their cable plant has the bandwidth to broadcast. For example, you cable company may have 10 different channels in your lineup, but only 5 physical channels to send them from the headend to the houses they service. This requires a cable box that can communicate back upstream to the headend and say “I would like to watch ESPN2HD now” and then headend would take that request, assign it to a frequency and then tell the cable box “ESPN2HD is available on xxx,xxx kHz”
Taken from:
»www.tivocommunity.com/tivo-vb/sh···t=357703 |
