Sky HD RF signal to amplifier

[aja321]

Hello

I have a sky hd box that has a coax cable in rf2 that goes to my loft where I have a digital bypass amplifier. I also have a digital aerial that is connected to the amplifier that sends freeview round the house. When I use a combiner/splitter to get both signals into the amplifier the quality of the picture is terrible (I've connected both individually and the picture quality is excellent therefore no cable or connection problems). Is there a combiner I can use that will combine the 2 signals without losing picture quality? Or do you have any other suggestions for getting good quality free view and sky around the house?


Thanks for your help
Andy

 

[logiciel]

Hi and welcome to AVF.
An obvious question first, have you tried various channels for the Sky receiver's RF output?

 

[Johnbyte]

Is there a combiner I can use that will combine the 2 signals without losing picture quality?

Not that I know of.

Or do you have any other suggestions for getting good quality free view and sky around the house?

You need to change your set up. The antenna input should go direct to RF in on the Sky box i.e. not to the amp. Then your RF2 out cable will be the only input to your distribution amp.

 

[Stevenage Neil]

Logi's answer is the way to go.

 

[Johnbyte]

(I've connected both individually and the picture quality is excellent therefore no cable or connection problems).

OP's post above.

 

[Stevenage Neil]

OP's post above.

??

Both signals work fine independently. They obviously interfere when combined. The OP needs to change his RF channel.

 

[aja321]

Hi,

Thanks for the feedback. The RF channel is 68 so I presume that's far enough away from terrestrial not to make a difference. I was hoping you would'nt say the aeriel has to go into the Sky box cos that's a pain in the bum for me but I suppose it's the only way

Thanks again

 

[MartinPickering]

Is there a combiner I can use that will combine the 2 signals without losing picture quality?

It's called "an aerial diplexer". However, I can't guarantee that your pictures will be perfect but, with the correct choice of diplexer "crossover point" and sky RF channel, they should be a lot better.

 

[Stevenage Neil]

..The RF channel is 68 so I presume that's far enough away from terrestrial not to make a difference...

Never assume/presume. Do you know what your terrestrial channel numbers are?

 

[logiciel]

The RF channel is 68 so I presume that's far enough away from terrestrial not to make a difference. I was hoping you would'nt say the aeriel has to go into the Sky box cos that's a pain in the bum for me but I suppose it's the only way

68 is the pre-set channel and as it's giving bad results there must be something interfering with it, as often happens, so you need to change it.
It usually goes into the Sky receiver's Aerial In socket, but that is not the only way, and it does not have to be done.

 

[Stevenage Neil]

68 is the pre-set channel and as it's giving bad results there must be something interfering with it...

The terrestrial signal!

The OP has stated that both work fine independently but both degrade when combined!!

 

[logiciel]

Yes - that's what I meant by "something" - we agreed on that in posts 2, 4, 6, and 9.