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Topic # 225674 29-Nov-2017 22:54
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Quick question - if I replace my rooftop satellite with a UFH aerial, can the UHF aerial be connected to the existing satellite cable?


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  Reply # 1910795 29-Nov-2017 23:09
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More than likely, yes. Assuming the cable is in good nick of course.




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  Reply # 1910801 29-Nov-2017 23:48
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I've just done this myself. Cut the RG6 cable from the sky dish . . . added the appropriate connector and hooked up to my aerial. All is working well so ripped the sky dish from the roof and discarded. 


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  Reply # 1910815 30-Nov-2017 06:35
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Cable to a satellite dish should be RG6 - this is rated to a slightly higher spec than what is required for UHF TV, so is normally a good choice to use.




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  Reply # 1910833 30-Nov-2017 07:38
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Great, as I thought. Thanks all.


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  Reply # 1910834 30-Nov-2017 07:39
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RunningMan:

this is rated to a slightly higher spec than what is required for UHF TV.



Can you elaborate on this please?

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  Reply # 1910846 30-Nov-2017 08:16
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You can get away with greater attenuation of higher frequencies on a cable being used for UHF TV as opposed to a sat dish. UHF TV will use up to approx 800MHz, whereas you will need up to approx 2GHz to cable to a sat dish.


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  Reply # 1910878 30-Nov-2017 09:26
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Yeah, will definitely work using the Sat cable, I do this all the time to save re-running new cabling.

 

 

 

The Sat dish cable is more likely higher quality than what is needed for UHF anyway.


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  Reply # 1910948 30-Nov-2017 10:49
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Why not just fix a diplexer at each end of the existing RG6 cable and leave the satellite dish on the roof for future flexibility?

 

https://www.dishtv.co.nz/index.php?route=product/product&product_id=92 


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  Reply # 1910959 30-Nov-2017 10:52
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RunningMan:

 

Cable to a satellite dish should be RG6 - this is rated to a slightly higher spec than what is required for UHF TV, so is normally a good choice to use.

 

 

 

 

They recommend RG6 for all new UHF installs these days.





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.



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  Reply # 1911120 30-Nov-2017 14:03
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farcus:

 

I've just done this myself. Cut the RG6 cable from the sky dish . . . added the appropriate connector and hooked up to my aerial. All is working well so ripped the sky dish from the roof and discarded. 

 

 

Thanks - where did you purchase the UHF aerial and connector from? Is it straightforward for someone with basic skills (me)?


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  Reply # 1911121 30-Nov-2017 14:09
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Most TV sellers will sell aerials. I got mine from JB HiFi - It came with the Hockey stick (pole to attach to side of house/barge-board), some cable and the antenna. Easy to assemble and put up.

 

Mine has a f-plug on it, so I put an f-connector on the cable I already had and screwed it into the aerial.

 

It is possible your existing Sky dish has an F-connector screwing the cable into the LNB - if you can unscrew that, and get a new aerial with a f-plug on it, then you shouldn't need to re-crimp any connectors onto your cable.


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  Reply # 1911296 30-Nov-2017 19:10
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I’m well aware of the attenuation levels of coaxial cables.
The reason for my question was stating that it is higher spec than needed a layman may think there is an alternative cable that can be used, which is not the case.

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  Reply # 1911337 30-Nov-2017 21:04
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My house is cabled with RG-59. I asked the installer if it was RG-6 (I had requested this), he said yes. I found out it wasn't when I went to terminate at wall plates with F types (I think the cable had originally been soldered to terminals on plate).

 

EDIT: RG-59 is fine in my case. 16 km from Sugarloaf, split 2 way then 2 way again and 4 way on other leg





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  Reply # 1911367 30-Nov-2017 23:22
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dafman:

 

farcus:

 

I've just done this myself. Cut the RG6 cable from the sky dish . . . added the appropriate connector and hooked up to my aerial. All is working well so ripped the sky dish from the roof and discarded. 

 

 

Thanks - where did you purchase the UHF aerial and connector from? Is it straightforward for someone with basic skills (me)?

 

 

 

 

I just got a UHF antenna off trademe.
Had to cut the F connector off of the sky dish to pull the cable out.

 

As I don't have a crimping tool I just purchased a screw on F connector from Mitre 10. As it is weather protected on the antenna the screw on type should be fine.


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