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Discussion Starter #1
I am curious as to how exactly Dish gets the CBS HD feed, in that they are using WCBS-NY and KCBS-LA as the apparent source.


1) Does Dish pick up the affiliate 45mbs HD feed directly off the bird and switch over to the local NY or LA station at breaks? They have to have the LA & NY locals in house anyway for SDTV customers.


2) Or do WCBS and KCBS send the HD signal from the local stations in that Dish gets a seperate fiber feed from these two locals as a "packaged" HDTV feed. If this is the case, what is the TRUE bit rate. Meaning that a 19.3mbs signal from the station being shipped to Echostar over a 45mbs DS3, is still only 19mbs in terms of signal quality.


3) Some other way?
 

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A guess:


OTA antenna in NYC going to a digital receiver

connected to a T3 line going to Cheyenne, Wyoming (61.5 sat uplink center).


OTA antenna in LA going to a digital receiver

connected to a T3 line going to Gilbert, Arizona (148 Sat uplink center).
 

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PVR,

Perhaps you meant "T3" (DS-3 @ 45 Mbps rather than 1.544 Mbps DS-1)? It's kinda hard to squeeze an already squeezed 19.2 Mbps bitstream onto a pipe with only 1.536 Mb/s of usable bandwidth... Unless of course we could use Einstein's quantum entanglement, aka "Spooky Action at a Distance":D

Quote:
Originally posted by PVR
A guess:


OTA antenna in NYC going to a digital receiver

connected to dual T1 lines going to Colorado (61.5 sat uplink center).


OTA antenna in LA going to a digital receiver

connected to dual T1 lines going to Gilbert, Arizona (148 Sat uplink center).
 

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From my observations here on the west coast, I see that the KCBS-HD feed on DISH is literally 3 to 4 seconds ahead of the standard def KCBS feed on DISH. Maybe DISH is beaming the west coast feed directly to the 148 SAT from LA??? Otherwise, I'm not sure why the big difference in delay....Anyone???
 

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Discussion Starter #6
Quote:
Originally posted by PVR
A guess:


OTA antenna in NYC going to a digital receiver

connected to dual T1 lines going to Colorado (61.5 sat uplink center).


OTA antenna in LA going to a digital receiver

connected to dual T1 lines going to Gilbert, Arizona (148 Sat uplink center).
I believe all locals go to Cheyenne. Denver is just E* offices. Gilbert is backup except for locals. At least that is what was expalined to me by E* a year ago.


I really don't the idea of the HDTV feed being sent via a local station. Just one more link in the chain.
 

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I just traced the path. The output of the WCBS-DT encoder feeds a distribution amp. An output of that amp goes down one floor to a telco room where it feeds a fiber encoder. That fiber cable is labeled as going to Echostar HD.


Edit-10-26

I have been informed that the above circuit is not yet active.
 

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Thanks for the info, "D B".


I suggest you remove that "circuit number"

from your posting. It doesn't mean anything

to us, and the only use to anyone would be if

someone wanted to intentionally "disturb"

that circuit. (sort of like advertising your

credit card number although not as bad).


Well, I suppose someone who works for the

right telco could trace that number and

tell us where it goes on the other end

(probably all the way to an echostar

uplink center)...
 
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