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54 posts

Master Geek


#233458 17-Apr-2018 09:55
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Hi,

 

I'm trying to understand why my TV gets Freeview HD signal from old SKY dish (I thought Freeview satellite doesn't support HD), and why my TV turner card doesn't get any signal at all from same cable. My TV turner card is DVB-T2/DVB-C so can understand why it's not getting signal from satellite since that is DVB-S but then why is my TV working and getting HD signal?

 

Background, I have a an old SKY dish hooked up and the satellite cable running to TV area, I just cut the satellite/coaxial adapter and put a UHF adapter so it can connect to TV. Signal is working fine and it confident it is HD (1080p), I'm a pixel peeper so can tell difference between SD and HD. I can't go on roof and physical check (three story townhouse) but it's use to be connected to SKY digital. 

 

So in theory the TV is receiving a DVB-S signal? But shouldn't support HD right, based on what I read Freeview HD isn't supported by satellite yet. TV is Sony X8500D but I don't think that supports DVB-S either. 

 

So any thoughts on why my TV is working with old sky dish and getting HD signal from DVB-S signal, but if its actually DVB-T signal then why isn't my TV tuner card getting any signal?

 

Cheers,

 

Anand

 

Edit: Even on Freeview site says Sony TV's only support UHF and need Satellite receiver connected to TV. https://freeviewnz.tv/product/82

 

Edit2: TV Turner card works with mini ariel that came with it just doesn't pick up strong signal but doesn't work at all from cable in wall connected to roof


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2203 posts

Uber Geek

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  #1997604 17-Apr-2018 10:09
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Odd indeed, but maybe use Google Street to view house roof from above .... there might be a sneaky UHF antenna up there? tongue-out

 

 


Banana?
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  #1997627 17-Apr-2018 10:21
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If you are in a really good reception area, it is possible that just the cable run and the metallic bits of the dish are providing enough signal. The TVs tuner could be a lot better at picking up and using marhinal signal than your tuner card.

 

 

 

OR, your house has UHF and Satellite on the roof, and it is diplexed into the one cable.


 
 
 
 




54 posts

Master Geek


  #1997629 17-Apr-2018 10:22
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So looks like a dish on top, and maybe a UHF Ariel next to it? Hard to tell from picture.

It looks like all our units (5) are sharing one dish. Didn't even know that was possible. All would be hooked up the same. Could one cable to house carry both Satellite and UHF signal?

If there is a sneaky UHF Ariel, then why doesn't my TV turner card work? And my TV Turner car is working on current setup since when I plug one of those mini Ariel's that come with it, it scans and finds channels, it just doesn't pick up good signal hence wanting to plug into cable that's connected to roof.


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  #1997644 17-Apr-2018 10:33
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Does look like both Sat and UHF antenna up there.

 

At least you are getting vision on main TV ... the DVB card is a conundrum.  Have you tried all possible outlets, viz. used the main TV outlet not just one somewhere else in the house?

 

UHF and Sat can be combined, but as others have said before, everything has to be perfect (F connectors, splitter, cable condition etc) ... maybe the set up just isn't up to satisfying the DVB card/computer combination as well as the direct line to a dedicated UHF TV?




54 posts

Master Geek


  #1997645 17-Apr-2018 10:36
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trig42:

 

If you are in a really good reception area, it is possible that just the cable run and the metallic bits of the dish are providing enough signal. The TVs tuner could be a lot better at picking up and using marhinal signal than your tuner card.

 

 

 

OR, your house has UHF and Satellite on the roof, and it is diplexed into the one cable.

 

 

 

 

I'm guessing it's duplexed into one cable based on roof image, but how come TV turner card not picking up signal? Using mini aerial TV turner card works but not when plugged into wall cable.




54 posts

Master Geek


  #1997651 17-Apr-2018 10:44
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Rickles:

 

Does look like both Sat and UHF antenna up there.

 

At least you are getting vision on main TV ... the DVB card is a conundrum.  Have you tried all possible outlets, viz. used the main TV outlet not just one somewhere else in the house?

 

UHF and Sat can be combined, but as others have said before, everything has to be perfect (F connectors, splitter, cable condition etc) ... maybe the set up just isn't up to satisfying the DVB card/computer combination as well as the direct line to a dedicated UHF TV?

 

 

 

 

Yeah no problem with TV. Ok so I'm guessing it's just my TV turner card not liking signal from outlet. I'll try another outlet upstairs and see if there is any better results. 

 

Nice to know that it's duplexed though and clears up some confusion around sat vs UHF signal. 




54 posts

Master Geek


  #1997658 17-Apr-2018 10:51
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Do you reckon I need one of these?

 

http://www.freeviewshop.co.nz/satellite-terrestrial-diplexer-p-57.html

 

I remember upstairs cable had one of these connected to it, I have it in a box somewhere. I'll try it out tonight and update. 

 

 


 
 
 
 


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  #1997661 17-Apr-2018 10:55
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You would in theory.




54 posts

Master Geek


  #1997665 17-Apr-2018 11:03
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Spyware:

You would in theory.



Surprised TV doesn't need it though. They must have them built in im guessing.

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