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Guest Message by DevFuse

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Is it true DTV has more satellites than dish?


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88 replies to this topic

#81 OFFLINE   harsh

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Posted 29 July 2012 - 05:25 PM

Even the link I posted, has close to 400 posts.

And much of that centered around the "potential" bandwidth once most of the encoders had been changed out.

I was referring to the anecdotal evidence you'd gleaned from experiments with DIRECTV2PC data rates and looking at file sizes of recorded programs (this may have been someone else's work).

Too often we enjoy the comfort of opinion without the discomfort of thought. -- JFK


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#82 OFFLINE   veryoldschool

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Posted 29 July 2012 - 05:30 PM

I was referring to the anecdotal evidence you'd gleaned from experiments with DIRECTV2PC data rates and looking at file sizes of recorded programs (this may have been someone else's work).

I've done a lot of that, but is not relative to the SATs. What one MPEG-4 program uses, can't be directly related to a TP, the SAT Mux for one, negates and addition of channels to have anything meaningful.
A.K.A VOS

#83 OFFLINE   harsh

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Posted 29 July 2012 - 05:56 PM

I've done a lot of that, but is not relative to the SATs. What one MPEG-4 program uses, can't be directly related to a TP, the SAT Mux for one, negates and addition of channels to have anything meaningful.

But what the discussion really comes down to is how much bandwidth is used for programming and how much gets spent on insuring that the programming arrives unscathed. The sum of the parts is as close as we can come.

Too often we enjoy the comfort of opinion without the discomfort of thought. -- JFK


#84 OFFLINE   James Long

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Posted 29 July 2012 - 06:52 PM

According to the current NIT table for DISH (if I have the math right):

DISH Eastern Arc can transmit 3.015 million bits of information per second (after error corrections) on ConUS transponders currently in the NIT.
On the 37 ConUS transponders with at least one channel active for customers (and are not used for locals), DISH can transmit 1.449 million million bits of information per second.
22 transponders in the NIT are used for locals, 21 currently have no public channels.

DISH Western Arc can transmit 1.805 million bits of information per second (after error corrections) on ConUS transponders currently in the NIT.
On the 50 ConUS transponders with at least one channel active for customers (and are not used for locals), DISH can transmit 1.773 million million bits of information per second.
1 transponder is leased and not counted here.

Spotbeams not included.
(NIT = Network Information Table)

Helpful?

#85 OFFLINE   veryoldschool

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Posted 29 July 2012 - 07:02 PM

But what the discussion really comes down to is how much bandwidth is used for programming and how much gets spent on insuring that the programming arrives unscathed. The sum of the parts is as close as we can come.

If we were dealing with fixed bit-rates, we might be able to "sum the parts".
The nature of MPEG-4 makes it impossible, as the bit-rates vary way too much. You would need access to the SAT Mux log.
A.K.A VOS

#86 OFFLINE   P Smith

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Posted 29 July 2012 - 09:23 PM

Measuring, comparing, concluding ...

If we cannot establish base units, then we should measure HDD not in MB/GB/TB but in number of pictures and hours of video, as some [smart] marketeers doing that.

Getting bandwidth for one provider (thanks to Go... ummm James ), now let's get median value for HD and SD channels for the provider. Doing same for DTV by harsh [using gct's tables] could give us a value to compare two providers ...
We could start count only CONUS or both - doesn't matter if you have total BW and BW for each type of channel

#87 OFFLINE   harsh

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Posted 31 July 2012 - 07:42 AM

If we were dealing with fixed bit-rates, we might be able to "sum the parts".

That's why I asked the question about 100% utilization. If we knew that the mux used all of the bandwidth, which program was using how much wouldn't much matter.

Too often we enjoy the comfort of opinion without the discomfort of thought. -- JFK


#88 OFFLINE   harsh

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Posted 31 July 2012 - 07:43 AM

Helpful?

When combined with other freely available information (how many of what kinds of channels), quite a bit.

Too often we enjoy the comfort of opinion without the discomfort of thought. -- JFK


#89 OFFLINE   P Smith

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Posted 31 July 2012 - 08:50 AM

That's why I asked the question about 100% utilization. If we knew that the mux used all of the bandwidth, which program was using how much wouldn't much matter.

If you inclined to find the number, I think you have $50-70 to buy DVB-S/DSS card (TH1020A), SW is free - TSReaderLite, dish and PC you have already.
The requested by you measures has dynamic nature - each tpn statmuxing - so using the card and TSR you will get it.

Take it, it's there.




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