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ITALIAN926

join:2003-08-16
kudos:2
reply to DrDrew

Re: [HD] Is Verizon lying about HD?

Nice response drew, but how could they increase to 1Ghz ? I thought thats where Moca lived, above 860Mhz?


More Fiber
Premium,MVM
join:2005-09-26
West Chester, PA
kudos:31
said by ITALIAN926:

I thought thats where Moca lived, above 860Mhz?

Indeed. Channel C4 is used for MOCA WAN. It is a 50Mhz frequency band from 875-1025Mhz.
--
There are 10 kinds of people in the world; those who understand binary and those who don't.


Zero

join:2009-07-01
Collegeville, PA
reply to ITALIAN926
You're right they can't because of MoCA, which is why they didn't start out with a 1GHz plant. Only options 1 and 3 are viable and only option 1 is mature enough to be implemented now.


DrDrew
That others may surf
Premium
join:2009-01-28
SoCal
kudos:16

2 edits
reply to ITALIAN926
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MOCA has several bands. IF the provider is using up to 1 Ghz, they should probably use MOCA band D so it doesn't interfere.

Slide from this presentaion:
»www.mocalliance.org/CEDIA/presen···tion.pdf

Verizon didn't start with 1 Ghz because at the time they launched, the boxes weren't available to do 1 Ghz. It's possible now, but doesn't provide a huge benefit for the costs involved. Especially since all the 1 Ghz capable boxes also do MPEG4.


ITALIAN926

join:2003-08-16
kudos:2
Dr Drew, they couldnt do that because there are a BILLION 5-1000Mhz coax splitters in the field right now.


DrDrew
That others may surf
Premium
join:2009-01-28
SoCal
kudos:16
Click for full size
said by ITALIAN926:

Dr Drew, they couldnt do that because there are a BILLION 5-1000Mhz splitters right now in the field.

That 1000Mhz isn't a hard cut off.

The signal above 1000 Mhz still passes on the majority of 5-1000 Mhz splitters. They just aren't performance tested or rated for a known amount of loss above 1000 Mhz. MOCA equipment was designed with that in mind.
--
If it's important, back it up... twice. Even 99.999% availability isn't enough sometimes.