8 Hd Channels On 1 Transponder
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I cannot hold a lock on 129/27 either, with a 24" dedicated dish. Here is a current thread you may find interesting.
http://www.satelliteguys.us/dish-network-forum/99926-problems-129-a.html
http://www.satelliteguys.us/dish-network-forum/99926-problems-129-a.html
Back to the original topic, there are major issues with 129W TP27. When Dish added the HD sports channels, they decreased the quality on the 3 existing HD channels (MAXHD, A&E, and Universal HD). Apparently they set the minimum bitrate for the sports channesl to 4Mbps. Unfortunately, this really hurts when there is no game playing and all the channel is showing is the "DishHD" logo. As you can see from the graph I have attached, no channel dips below 4Mbps.
There are 6 actual video pids on this transponder (even though there are 7 listed on that graph). If you notice, Altud and 5793 HDSKD are graphed the same (green and purple) because they are mapped to the same video pid. When I captured this data there was a DishHD slate on 5791 and 5792. These two channels are eating up 8+Mbps from this mux!!!! That is approx 20% of the mux devoted to DishHD slates!
It is also obvious that they have a 14Mbps rate cap on each individual channel. Keep in mind all 6 video pids are h.264 so we can't really relate to mpeg2 bitrates. The chart captured the real time bitrates of the pids on that mux for approx 1 minute.
There are 6 actual video pids on this transponder (even though there are 7 listed on that graph). If you notice, Altud and 5793 HDSKD are graphed the same (green and purple) because they are mapped to the same video pid. When I captured this data there was a DishHD slate on 5791 and 5792. These two channels are eating up 8+Mbps from this mux!!!! That is approx 20% of the mux devoted to DishHD slates!
It is also obvious that they have a 14Mbps rate cap on each individual channel. Keep in mind all 6 video pids are h.264 so we can't really relate to mpeg2 bitrates. The chart captured the real time bitrates of the pids on that mux for approx 1 minute.
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Thats amazing, considering in 1997 they could bairly squeeze 8 Standard definition channels per transponder!
Just as a comparison, here is the mux on 61.5, with the same 3 HD channels, but lacking the addition of the HD Sports channels.
Notice MAXHD hitting the 14Mbps cap quite often? I will also point out there is approx 15Mbps on this mux which is just null packets (filler). For some reason they are not using the entire available bandwidth on this mux for the 3 existing HD channels.
Notice MAXHD hitting the 14Mbps cap quite often? I will also point out there is approx 15Mbps on this mux which is just null packets (filler). For some reason they are not using the entire available bandwidth on this mux for the 3 existing HD channels.
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Encoder hardware power has increased significantly over the last 10 years. Gotta wonder how long they can keep it up. I wonder what the PQ was like on those 8 SD channels though
. Probably better than the current SD PQ.Encoder hardware power has increased significantly over the last 10 years. Gotta wonder how long they can keep it up. I wonder what the PQ was like on those 8 SD channels though
Like every other product ever made, its a balance of making something good enough that people are ok with it. But no better.... that it unless the competition is making things better. Unfortunately nobody really is better. Everyone is pretty much the same these days.
It's not actually on, even for Dish Network Engineers.
Just a place holder channel number assigned.
Encoder hardware power has increased significantly over the last 10 years. Gotta wonder how long they can keep it up. I wonder what the PQ was like on those 8 SD channels though
Nope. There was more Fuzzy Vision then.They would limit the incoming analog bandwidth in order to control bitrate. Looked terrible.
BTW: one of the 8 listed by the OP does not exist. (MP271 5890 is not in the system)
Wow!! excellent graph!! I wish I knew what the heck I was looking at!!! So are you are saying that Dish added a sports channel and 129/27 took a dump? Which channel and when?
Sorry for my ignorance, I have no idea WTF a PID and a MUX are. I need to do more research!
Do you have that graph for say a 24 hour period? I've noticed the bulk of my signal loss is an afternoon event.
Is there a graph which shows the 3 existing channels before the addition of the 3 HD Sports source channels? If not, the actual effect of adding the channels is not known.
If the slates were to use next to no bandwidth, there would be a substantial change in the existing channels when a sports event began and a noticeable change would occur. This noticeable change is to be avoided. Thus, the slates do use an appreciable amount of bandwidth, while not being as much as a sporting event would use, the change is minimized.
Based on other MPEG4 Tps, we should expect this Tp to have 6 HD channels and accept the PQ that results from that loading as that seems to be what they plan to do throughout the system. The reaction to the first Tp which had 6 MPEG4 HD channels was positive.
There is a difference in the setup of this Tp versus the other HD RSN Tp. This Tp can have 6 active channels while the other HD RSN Tp is configured with 5 active channels and apparently one slate channel. Perhaps Hokie Engineer or digiblur can confirm if there is a channel on Tp 8 which has no SID(perhaps VPID 7714).
If the slates were to use next to no bandwidth, there would be a substantial change in the existing channels when a sports event began and a noticeable change would occur. This noticeable change is to be avoided. Thus, the slates do use an appreciable amount of bandwidth, while not being as much as a sporting event would use, the change is minimized.
Based on other MPEG4 Tps, we should expect this Tp to have 6 HD channels and accept the PQ that results from that loading as that seems to be what they plan to do throughout the system. The reaction to the first Tp which had 6 MPEG4 HD channels was positive.
There is a difference in the setup of this Tp versus the other HD RSN Tp. This Tp can have 6 active channels while the other HD RSN Tp is configured with 5 active channels and apparently one slate channel. Perhaps Hokie Engineer or digiblur can confirm if there is a channel on Tp 8 which has no SID(perhaps VPID 7714).
They appear to be in the process of adding local sports HD channels to that tranponder. I wouldn't expect the quality to increase. If you are having signal issues, that would be caused by either your dish not being pointed perfectly or a lnb issue. I'll check the signal levels on 129 to see if TP27 is lower than the others when I get back home.
A mux is a group of data streams. Each stream could be a video, audio, or data channel. I found a great place to start reading and learning this stuff is on this webpage:
North American MPEG-2 Information
John:
You probably are correct that they were planning on 6 channels from the start and were already doing some rate shaping on the original three channels. I don't have any data from before this change was made
. If you look at my graph from 61.5, you'll notice max-hd peaks out much more than on 129. The nulls on the 61.5 tp make me think they are planning for 6 channels on that mux as well.
The problem I have been having is with channels A&E HD and UNIHD on Sat 129 TP27.
Some said that the problem started when E* added the RSN-HD's. But the only RSN they added on TP27 is Altitude, and that channel is not available yet.
COuld there be other issues, perhaps my equipment?
Some said that the problem started when E* added the RSN-HD's. But the only RSN they added on TP27 is Altitude, and that channel is not available yet.
COuld there be other issues, perhaps my equipment?
Most likely it is not your equipment as many people are having problems with TP27 on 129. It is putting out a much lower signal than the other TPs and unless your dish is aimed perfectly, and also peaked for 129, you're going to have problems.
Many have installed a second dish to improve their reception of 129. Personally I would attempt to reaim your current dish to peak the signals on 129, which will lower the signals on 110/119 a little but its probably the best solution until they send another bird to cover 129w.
Many have installed a second dish to improve their reception of 129. Personally I would attempt to reaim your current dish to peak the signals on 129, which will lower the signals on 110/119 a little but its probably the best solution until they send another bird to cover 129w.
He got the exactly recommendation from first posts at DBSTalk, but still complaining. Well, it a just TV, actually HIS TV channels .
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Who do you mean by "they" ? ANd what are you referring to as "do that" ?
There are these things called "nouns"...
I was referring to the quote I QUOTED.
It's pretty clear that "they" is Dish Network and "do that" is replace 129... JohnH knew what I was talking about. He answered my question without making any snide remark.
Thanks for answering the question, John H. It's appreciated.
