Videocon D2H changed the symbol rate of 3 TPs

[Vadirocks]

No, As i said DTH Ops r having low SR and FEC in their Home TP ..but D2H is now having Heighest..

Yeah I Too Noticed It!

As High SR Needs Strong Signal Footage For Stable Signal Level, Thought It Can Accommodate Many Channels Right?

 

[Mr.Bhat]

Yes it may help to add more channels but dont know about the Compression technology which stables the PQ..

 

[Vadirocks]

Yes it may help to add more channels but dont know about the Compression technology which stables the PQ..

As I Heard, They Can Compress PQ & AQ Individually For Each And Every Channel,

In Single Tp! They Can Provide One Channel Without Compressing And One With Compressing!

 

[ayanc99]

As I Heard, They Can Compress PQ & AQ Individually For Each And Every Channel,

In Single Tp! They Can Provide One Channel Without Compressing And One With Compressing!

So is there any forum where we can get information on how many new channels both SD and HD has been created with the change in symbol rate?

 

[Vadirocks]

So is there any forum where we can get information on how many new channels both SD and HD has been created with the change in symbol rate?

Here Itself You Can Get All Info! Once They Started To Do Something,,,,,,,,,,

 

[Sanjeev]

so good news is coming for d2h usershyahyahya

 

[v_srikanth961]

D2H initiated experiments in changing SR of TPs. When they acquired two new TPs 11164H and 11164V the SR of these two TPs is different from others (44995 and 43997). Once these two new TPs started working fine around december last year they started changing SR of other TPs also to 44995.
AFAIK D2H also changed its HOME TP from 11483 H to 11164H. This they have done when they activated the TP and after moving channels from 11483H to this TP.

So D2H definitely knows what its doing!!!

D2H probably will not mess with FEC as 54MHz signals are more susceptible to noise.

With a capacity of 44995 KSPS (Kilo Symbols per second) and each signal representing 3 bits (8PSK), now D2H has a bandwidth of 44995 x 3 = 134985 kbps = 131.82 Mbps
Now how many ever channels can be compressed and fit in the 132 Mbps bandwidth it will do.

Technically it might be possible to compress audio/video of each channel separately, the amount of effort required to test the channel with different compression level is huge. And one compresion level may not work in all the cases. So its difficult to find an optimal compression level. Using same compression level for all channels makes some channels really good and may be some really bad. Its all trial and error.

 

[Vadirocks]

D2H initiated experiments in changing SR of TPs. When they acquired two new TPs 11164H and 11164V the SR of these two TPs is different from others (44995 and 43997). Once these two new TPs started working fine around december last year they started changing SR of other TPs also to 44995.
AFAIK D2H also changed its HOME TP from 11483 H to 11164H. This they have done when they activated the TP and after moving channels from 11483H to this TP.

So D2H definitely knows what its doing!!!

D2H probably will not mess with FEC as 54MHz signals are more susceptible to noise.

With a capacity of 44995 KSPS (Kilo Symbols per second) and each signal representing 3 bits (8PSK), now D2H has a bandwidth of 44995 x 3 = 134985 kbps = 131.82 Mbps
Now how many ever channels can be compressed and fit in the 132 Mbps bandwidth it will do.

Technically it might be possible to compress audio/video of each channel separately, the amount of effort required to test the channel with different compression level is huge. And one compresion level may not work in all the cases. So its difficult to find an optimal compression level. Using same compression level for all channels makes some channels really good and may be some really bad. Its all trial and error.

Nice Explanation!,,,,,,,,,,,,,

 

[M.J.Sadiq]

@v_srikanth961: Nice explanation...

 

[acmedigitals]

D2H initiated experiments in changing SR of TPs. When they acquired two new TPs 11164H and 11164V the SR of these two TPs is different from others (44995 and 43997). Once these two new TPs started working fine around december last year they started changing SR of other TPs also to 44995.
AFAIK D2H also changed its HOME TP from 11483 H to 11164H. This they have done when they activated the TP and after moving channels from 11483H to this TP.

So D2H definitely knows what its doing!!!

D2H probably will not mess with FEC as 54MHz signals are more susceptible to noise.

With a capacity of 44995 KSPS (Kilo Symbols per second) and each signal representing 3 bits (8PSK), now D2H has a bandwidth of 44995 x 3 = 134985 kbps = 131.82 Mbps
Now how many ever channels can be compressed and fit in the 132 Mbps bandwidth it will do.

Technically it might be possible to compress audio/video of each channel separately, the amount of effort required to test the channel with different compression level is huge. And one compresion level may not work in all the cases. So its difficult to find an optimal compression level. Using same compression level for all channels makes some channels really good and may be some really bad. Its all trial and error.

good details ....:tup
in this situation how many channels can add in one tp ?