Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.



1624 posts

Uber Geek

Trusted

Topic # 25788 1-Sep-2008 17:25 Send private message

So does anyone know what the transponder frequency and symbol rates of the transponders Sky are using for their HD service?

Also, are they DVB-S1 or DVB-S2.

thanks

Create new topic
1482 posts

Uber Geek
+1 received by user: 35

Trusted

  Reply # 161354 1-Sep-2008 18:51 Send private message

They have two HD half transponders both running DVB-S2

12331 H 22500 2/3
12358 H 22500 2/3

Steve




Generally known online as OpenMedia, now working for Red Hat New Zealand as a Solution Architect for all things Linux, Virtual and of course Cloud. Still playing with MythTV and digital media on the side.



1624 posts

Uber Geek

Trusted

  Reply # 161429 1-Sep-2008 23:37 Send private message

thanks!!



1624 posts

Uber Geek

Trusted

  Reply # 161492 2-Sep-2008 11:29 Send private message

further to this, has anyone with a DVB-S2 card managed to get lock and tune on these transponders?


3402 posts

Uber Geek
+1 received by user: 800

Trusted

  Reply # 161613 2-Sep-2008 16:49 Send private message

Also interested in this, though you need someone with a 45xx card, card reader, mysky HDi, dvb-s2 card and sky working to test it. Anyone match all of these criteria?

403 posts

Ultimate Geek
+1 received by user: 1

Subscriber

  Reply # 161664 2-Sep-2008 19:18 Send private message

I have just tried to scan those frequencies with a HVR4000 DVB-S2 card and cannot get a lock. Is the 2/3 FEC rate correct?

Cheers Mike



1624 posts

Uber Geek

Trusted

  Reply # 161697 2-Sep-2008 21:53 Send private message

eXDee: Also interested in this, though you need someone with a 45xx card, card reader, mysky HDi, dvb-s2 card and sky working to test it. Anyone match all of these criteria?


one would think that even without the cards, you should be able to get lock on the transponder and see the channels.  Decoding them is an entirely different matter.

Also, even if the PIDs and what have you are hidden, you should still be able to get lock on those transponders I would have thought.  You'd just scan and get no services on them.

3402 posts

Uber Geek
+1 received by user: 800

Trusted

  Reply # 161698 2-Sep-2008 22:03 Send private message

By 'lock and tune' i assumed you meant getting a picture. But yes you could get a lock with just the card i suppose.

1482 posts

Uber Geek
+1 received by user: 35

Trusted

  Reply # 161707 2-Sep-2008 23:07 Send private message

mruane: I have just tried to scan those frequencies with a HVR4000 DVB-S2 card and cannot get a lock. Is the 2/3 FEC rate correct?

Cheers Mike


I pulled the information out of Sky's NIT table

            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: 2 (0x02)  [= 8PSK]
            Symbol_rate: 2248704 (=  22.5000)
            FEC_inner: 2 (0x02)  [= 2/3 conv. code rate]




Generally known online as OpenMedia, now working for Red Hat New Zealand as a Solution Architect for all things Linux, Virtual and of course Cloud. Still playing with MythTV and digital media on the side.



1624 posts

Uber Geek

Trusted

  Reply # 161712 2-Sep-2008 23:29 Send private message

eXDee: By 'lock and tune' i assumed you meant getting a picture. But yes you could get a lock with just the card i suppose.


sorry I should have been more clear.

step 1:  get lock on transponder
step 2:  tune in channels on that transponder (should be able to get this far with Sky)
step 3:  decode (if necessary) and watch tuned channels

Cool

I would imagine one should be able to get to step 2 with any DVB-S2 hardware, but it seems harder than it would seem for some reason.

59 posts

Master Geek


  Reply # 161719 3-Sep-2008 00:12 Send private message

allstarnz:
eXDee: By 'lock and tune' i assumed you meant getting a picture. But yes you could get a lock with just the card i suppose.


sorry I should have been more clear.

step 1:  get lock on transponder
step 2:  tune in channels on that transponder (should be able to get this far with Sky)
step 3:  decode (if necessary) and watch tuned channels

Cool

I would imagine one should be able to get to step 2 with any DVB-S2 hardware, but it seems harder than it would seem for some reason.


MyTheatre 4.0 Beta & HVR4000 'locks & tunes' if you specify the FEC 2/3 & 8PSK explicitly rather than rely on the Auto feature (which works for DVB-S) - I believe that is expected behaviour of this recent beta release. GBPVR does not see them on a standard scan - I haven't looked why - nor have I tried to enter them manually.

So decode should be possible with a 45 sky card with a HD subscription.

Create new topic








Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when new jobs are posted to our jobs board:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:




News »

Trending now »
Hot discussions in our forums right now:

Telecom introduces unlimited broadband data plan
Created by freitasm, last reply by KiwiNZ on 24-Apr-2014 07:28 (94 replies)
Pages... 5 6 7


Stonedine
Created by Lizard1977, last reply by surfisup1000 on 23-Apr-2014 21:27 (58 replies)
Pages... 2 3 4


Forms of government for New Zealand
Created by charsleysa, last reply by KiwiNZ on 23-Apr-2014 20:57 (169 replies)
Pages... 10 11 12


Telecom has started metering their TiVo customers' broadband usage (WITHOUT PRENOTIFICATION)
Created by Peteriv, last reply by kre8uv on 24-Apr-2014 08:03 (70 replies)
Pages... 3 4 5


Parallel imported product
Created by Wills1, last reply by joker97 on 23-Apr-2014 21:01 (53 replies)
Pages... 2 3 4


MH370 - Call for Search & Rescue Help
Created by DS248, last reply by joker97 on 23-Apr-2014 22:37 (737 replies)
Pages... 48 49 50


Labour MP Shane Jones to step down
Created by jeffnz, last reply by jeffnz on 23-Apr-2014 20:41 (32 replies)
Pages... 2 3


Upcoming Freeview Restack AUCKLAND
Created by Brunzy, last reply by richms on 23-Apr-2014 21:05 (13 replies)


Geekzone Live »
Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.