rashid11
join:2008-01-06
Rutherford, NJ
| reply to kingspud
Re: Verizon Bites CableCard Bullet (New Set Top Boxs)
the swap of older STBs will prolly be required when they go with MPEG4, which is very likely to take a very long while.
FIOS' all-optical network means very low SNRs which translates to QAM-256 - giving FIOS the fattest pipe and they are not quite starved for BW like satellite companies are, for example.
MPEG4 is about 50% more efficient, compared to MPEG2, meaning you can have same PQ while requiring 50% less BW to deliver it. And it also means you can cram 2x the number of channels into the same BW - again, a giant boon to satellite TV companies.
As a TIVO owner I am more interested in FIOS adopting "first card is free" policy - wish FCC could force them to do that. |
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cypherstream
Build Fios, and I will come.
join:2004-12-02
Reading, PA
clubs:
 ·Cingular Wireless
| said by rashid11  :FIOS' all-optical network means very low SNRs which translates to QAM-256 - giving FIOS the fattest pipe and they are not quite starved for BW like satellite companies are, for example. That's not the main benefit. Most cable operators do 256QAM as well. Just Fios saves the bandwidth that cable operators would use for VOD, Internet, and Voice, since those services are on it's on wavelength carried via IP.
Not to mention its a 54-864 MHz output, when many cable systems only go to 750 MHz.
My area for example has 4 256QAMs for VOD, and one for HSI/Voice. That's 5 QAM slots that could be saved if they were on a different fiber/wire/wavelength/etc....
Some area's have even more QAMs for VOD and Data. Sure the SNR is great, but no ones pushing 1024QAM.... |
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