[mythtvnz] Sky HD

[Steven Ellis]

David Zanetti wrote:
> On Tue, 2008-07-15 at 11:48 +1200, Craig Whitmore wrote:
>   
>> On Tue, 2008-07-15 at 11:32 +1200, Nick Rout wrote:
>>     
>>> I haven't read any publicity or technical info on Sky HD.
>>>
>>> Are Sky offering TV1/2/3 feeds in HD unencrypted from Optus D1?
>>>
>>> If so can a normal DVB-S card capture the signal?
>>>       
>> The broadcasts as far as I know are DVB-S2 NDS encryted signals.
>>     
>
> AFAIK it's not -S2, but -S on spare transponder space they found by
> pushing bitrates a bit further down.
>
> Don't believe Optus D1 had any -S2 transponders on it.
>   
If you pull the network information off the current SD transmissions you
get the following

            DVB-DescriptorTag: 67 (0x43)  [=
satellite_delivery_system_descriptor]
            descriptor_length: 11 (0x0b)
            Frequency: 19083520 (=  12.33100 GHz)
            Orbital_position: 5632 (= 160.0)
            West_East_flag: 1 (0x01)  [= EAST]
            Polarisation: 0 (0x00)  [= linear - horizontal]
            Kind: 1 (0x01)  [= DVB-S2]
            Roll Off Faktor: 2 (0x02)  [= Alpha 0.20]
            Modulation_type: 1 (0x01)  [= QPSK]
            Symbol_rate: 2248704 (=  22.5000)
            FEC_inner: 6 (0x06)  [= 8/9 conv. code rate]


            DVB-DescriptorTag: 67 (0x43)  [=
satellite_delivery_system_descriptor]
            descriptor_length: 11 (0x0b)
            Frequency: 19093504 (=  12.35800 GHz)
            Orbital_position: 5632 (= 160.0)
            West_East_flag: 1 (0x01)  [= EAST]
            Polarisation: 0 (0x00)  [= linear - horizontal]
            Kind: 1 (0x01)  [= DVB-S2]
            Roll Off Faktor: 2 (0x02)  [= Alpha 0.20]
            Modulation_type: 2 (0x02)  [= 8PSK]
            Symbol_rate: 2248704 (=  22.5000)
            FEC_inner: 2 (0x02)  [= 2/3 conv. code rate]

So it appears that they have two new half transponders using DVB-S2.
Both of these currently show 3 HD services comprising

SKY Sport 1 HD
SKY Sport 2 HD
SKY Movies HD
SM Greats HD
TV3
HD Test

Plus I've tried to perform a transponder scan using a DVB-S card and I
can't pick anything up or get a lock.

Steve

-- 
Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz