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.




590 posts

Ultimate Geek

Subscriber

# 104725 20-Jun-2012 21:33
Send private message



  

I'm talking about the Sky LNB pictured above. 

Currently I have:  
LOF1: 10750 
LOF2: 10750 
LNBSW: 12900 
22k: off 

While I do seem to receive channels, I feel I am sometimes missing some. (I'm not just after freeview channels) 

I have no switches or anything between the LNB and the usb receiver. 

I would like to be able to tell the dual LNB which LNB to use, to see which gives a better signal.

The more verbose/detailed/technical the answer the better, I'm here to learn, not just to get the correct numbers and say yay.

Create new topic
256 posts

Ultimate Geek


  # 644067 20-Jun-2012 22:40
Send private message

The other LNB is pointed at C1 , theres nothing on it except optus aurora and thats getting switched of end of next year




 

3539 posts

Uber Geek

Trusted

  # 644070 20-Jun-2012 22:53
Send private message

I had a poke around on the NANZ beam of Optus C1 a few months back and found pretty much as Injuised said: mostly encrypted Aurora channels, a Test channel and a couple of SNG feeds which come and go at no particular times.  Really not worth the bother, so when my dual-throat LNB died, I replaced it with a more sensitive single-throat to pretty much eliminate any possibility of rain fade.





 
 
 
 


549 posts

Ultimate Geek


  # 644265 21-Jun-2012 13:55

To access the "C1" LNB, turn on 22kHz. This switches to the other side of the LNB.




don't mess with me.... i'm the hd insider....

141 posts

Master Geek


  # 644314 21-Jun-2012 15:30
Send private message

injuised: The other LNB is pointed at C1 , theres nothing on it except optus aurora and thats getting switched of end of next year

It is true that the other LNB is pointed at C1/D3 and the only channels that you can receive in NZ using a Sky dish/LNB  are the Optus Aurora encrypted channels SBS and Central 7. SBS is arguably the best channel that you can access in NZ with a regular satellite dish. Wimbledon should be on Channel 7 over the next couple of weeks.
The Aurora service will cease at the end of next year as it is being replaced with the more comprehensive VAST service. Although VAST is also broadcast from C1/D3 none of the transponders used by VAST have a footprint that covers NZ.
Turn 22Khz on to switch your LNB to C1.
You might be able to get an STB and/or Aurora Irdeto card that will decode Aurora channels if you search TradeMe. 



590 posts

Ultimate Geek

Subscriber

  # 644473 21-Jun-2012 21:39
Send private message

Thanks guys.
Will give turning on the 22kHz a try and see what happens.

I'v kinda moved the LNB a bit, so it might not be tuned to C1 anymore.
Was thinking that maybe I could get it to receive D1 and D2, but it seems they are to far apart.

grant_k, You said something about getting a new more sensitive single-throat LNB, what kind of specs should I look for to get one of these?

I read that universal LNBs are worse, so a standard LNB, single-throat to start with I guess.

I got a usb TBS5922 so I can do blind scans with my computer, which seems to be working out quite well.
It's interesting to see whats all hidden up there, I'v come across one or two mysterious transponders which don't seem to have any channels on them... maybe an ISP transponder... Or maybe my signal was too week... My dish is a bit misaligned at the moment.
Will have to fix that on the next clear day.

3539 posts

Uber Geek

Trusted

  # 644508 21-Jun-2012 23:22
Send private message

TechnoGuy001: grant_k, You said something about getting a new more sensitive single-throat LNB, what kind of specs should I look for to get one of these?

I read that universal LNBs are worse, so a standard LNB, single-throat to start with I guess.

I ordered one of these @ $40:

http://www.freeviewshop.co.nz/02db-noise-figure-11300-band-p-627.html

For my dish, I also needed one of these brackets @ $16:

http://www.freeviewshop.co.nz/replacement-bracket-p-620.html

It wasn't quite the dead right thing, but a hole drilled right in the centre between the other two holes fixed that.  Then I selected it to V-pol on my receiver, and tweaked the skew for best signal on the Test channel as seen on the receiver.  Signal Strength on V-Pol is quite a bit lower than the H-Pol signals which are intended for NZ viewers, so if you optimise the performance on V-Pol, you will have a more sensitive indication of correct alignment than simply optimising H-Pol by itself.





141 posts

Master Geek


  # 644542 22-Jun-2012 08:25
Send private message

TechnoGuy001: Thanks guys.
Will give turning on the 22kHz a try and see what happens.

I'v kinda moved the LNB a bit, so it might not be tuned to C1 anymore.
Was thinking that maybe I could get it to receive D1 and D2, but it seems they are to far apart.

grant_k, You said something about getting a new more sensitive single-throat LNB, what kind of specs should I look for to get one of these?

I read that universal LNBs are worse, so a standard LNB, single-throat to start with I guess.

I got a usb TBS5922 so I can do blind scans with my computer, which seems to be working out quite well.
It's interesting to see whats all hidden up there, I'v come across one or two mysterious transponders which don't seem to have any channels on them... maybe an ISP transponder... Or maybe my signal was too week... My dish is a bit misaligned at the moment.
Will have to fix that on the next clear day.

D1 is 37,000 kilometers above the equator at 160 East, C1 is at 156 East, D2 is at 152 East, so the satellites are 4 degrees longitude apart..
If you were to point your Sky dish 4 degrees further west so that it was pointing at C1 rather than D1, then the secondary LNB which is offset by 4 degrees on a standard dish would then receive signals from Optus D2.
Whether or not you think there is anything of interest on D2 will depend upon your religious beliefs and ethnic background.
There is a package available where you can install an 85cm dish with 3 LNB's to receive D1 C1 and D2 http://www.jayx.co.nz/Package4.html
If I were going to install a bigger dish I would go for a 90cm dish and C band LNB so that I could receive from Intelsat 5, with a Ku band LNB offset to receive from D1.

Create new topic



Twitter and LinkedIn »



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 tech item prices are listed in our price comparison site:





News »

Disney+ streaming service confirmed launch in New Zealand
Posted 20-Aug-2019 09:29


Industry plan could create a billion dollar interactive games sector
Posted 19-Aug-2019 20:41


Personal cyber insurance a New Zealand first
Posted 19-Aug-2019 20:26


University of Waikato launches space for esports
Posted 19-Aug-2019 20:20


D-Link ANZ expands mydlink ecosystem with new mydlink Mini Wi-Fi Smart Plug
Posted 19-Aug-2019 20:14


Kiwi workers still falling victim to old cyber tricks
Posted 12-Aug-2019 20:47


Lightning Lab GovTech launches 2019 programme
Posted 12-Aug-2019 20:41


Epson launches portable laser projector
Posted 12-Aug-2019 20:27


Huawei launches new distributed HarmonyOS
Posted 12-Aug-2019 20:20


Lenovo introduces single-socket servers for edge and data-intensive workloads
Posted 9-Aug-2019 21:26


The Document Foundation announces LibreOffice 6.3
Posted 9-Aug-2019 16:57


Symantec sell enterprise security assets for US$ 10.7 billion to Broadcom
Posted 9-Aug-2019 16:43


Artificial tongue can distinguish whisky and identify counterfeits
Posted 8-Aug-2019 20:20


Toyota and Preferred Networks to develop service robots
Posted 8-Aug-2019 20:11


Vodafone introduces new Vodafone TV device
Posted 7-Aug-2019 17:16



Geekzone Live »

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


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



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.