Stargazer said:
There will be a LOT more than 48 channels needed for national HD. I thought they could fit more than 2 HD channels per TP with the MPEG-4 and turbo 8PSK. Maybe they can get 3 HD channels per TP at that point and with future compression improvement get 4-5 HD channels per TP. Isn't that about how many SD stations per TP we were seeing on the satellites about 10 years ago?
Are you talking about national HD available now, or in a few years? I was talking about right now, to which there are much less than 48 national HD channels available. My last count was around 35-37, and thats stretching it, counting channels that I dont believe are doing a lot of HD, for example: NBA TV, NFL channel, OLN HD (thats sure to piss off all 659 hockey fans).
If you are tlaking about in the future, as channels migrate to HD, and MPEG4 compression (real time encoding) becomes better, you will need more space, but at the same time, you are going to probably be gaining space from SD channel removals, and hopefully better bandwidth usage on existing locations (like getting other FSS slots next to DBS slots much like 118.75/119, or moving SD to MPEPG4 or who knows). The real question is, how soon do we need room for 50 HD national channels? How about 100? I just think its a ways off before we will need that kkind of capacity, especially for 100 HD national channels.
Smith said:
I knew I read it somewhere
Of course I'm also curious to know if 16QAM is viable for Dish to use. If they could use that, and didnt someone confirm in the weekly uplink thread that all Dish broadcom chips support it, 16QAM 3/4 FEC on these FSS transponders would yield just under 74Mbit! That alone at a full 19mbit per channel could yield upwards of 90 HD channels!