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JPFX

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#111159 25-Oct-2012 21:38
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Hi,
I am setting up two MySky units to one dish. The dish has a Quad LNB and each decoder has
a separate coax run to the dish plugged into ports 1 and 2 on the LNB. What settings do I need
to setup on the decoder to make two decoders work in this configuration?

Cheers.

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tkr001
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  #706634 26-Oct-2012 07:44
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Assuming they both worked on your dish previously you don't have to do anything. Otherwise ensure LOF is set correctly, probably 10750 (or 10.75)



B1GGLZ
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  #706662 26-Oct-2012 08:45
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tkr001: Assuming they both worked on your dish previously you don't have to do anything. Otherwise ensure LOF is set correctly, probably 10750 (or 10.75)

+1
Normal Sky setup for each.

JPFX

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  #706686 26-Oct-2012 09:06
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Thanks, I just tried the following:
Hooked first decoder to wire 1 only worked fine.
Hooked first decoder to wire 2 only worked fine.
Did the same for the second decoder works fine.
But as soon as I have the first decoder to wire 1
and the second decoder to wire 2 they both say
no signal, as soon as you disconnect either wire
the other unit comes back online. It's a quad LNB
with the wires on the first two outputs, sounds like a LNB issue? Can both units be set to power the LNB at the same time?



CYaBro
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  #706714 26-Oct-2012 10:06
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Sounds like it could be an LNB issue as my parents-in-law had a similar setup when they had multiroom.
The Sky tech put in a quad LNB and ran a second cable to the second decoder rather than splitting the original cable and that worked fine for them.




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dolsen
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  #706731 26-Oct-2012 10:41
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Try moving the cables on the lnb to different outputs.

JPFX

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  #706776 26-Oct-2012 11:25
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Ok, thanks for your help. Just to check my understanding:
If two sky decoders looking at the same satilite are hooked to a quad lnb,
the quad lnb acts like four single lnbs's. So as far as each decoder is concerned
it sees it's own signal so the settings on each decoder should be identical.
I just thought of something, one decoder is a mysky hdi and the other is
a mysky plus, could that make a difference?
 

 
 
 

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Brunzy
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  #706790 26-Oct-2012 11:39
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Why dnt you ring Sky , surely they can answer your questions?

B1GGLZ
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  #706792 26-Oct-2012 11:42
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JPFX:  It's a quad LNB
with the wires on the first two outputs, sounds like a LNB issue? Can both units be set to power the LNB at the same time?

Sounds like a LNB issue.
I don't know what's inside the enclosure. Is it 4 independant LNBs or 1 LNB with 4 outputs? Sounds like maybe the latter. Try disconnecting the power feed from one decoder and see what happens.
If all else fails call Sky.

tkr001
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  #706828 26-Oct-2012 12:28
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Are you running seperate coax to each port on the LNB? If you are it should work fine assuming it is a quad LNB. If it is a single lnb and you split the cable you should only pass through power from one decoder.

B1GGLZ
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  #706894 26-Oct-2012 13:21
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tkr001: Are you running seperate coax to each port on the LNB? If you are it should work fine assuming it is a quad LNB. If it is a single lnb and you split the cable you should only pass through power from one decoder.

Read the Ops first post. He said he was.

tkr001
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  #706897 26-Oct-2012 13:28
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B1GGLZ:
tkr001: Are you running seperate coax to each port on the LNB? If you are it should work fine assuming it is a quad LNB. If it is a single lnb and you split the cable you should only pass through power from one decoder.

Read the Ops first post. He said he was.


Hmmm wonder how I was first to reply to original post without reading it? In any case it depends on whether the unit is a true quad lnb or a single with four ports....Who installed the LNB?

 
 
 
 

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JPFX

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  #706931 26-Oct-2012 13:57
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Yes there are two cables run up to the dish, one for each decoder.
The lnb is a new quad lnb that sky installed. They each work individually
but as soon as both decoders are connected to the lnb they both say
no signal. What if I try connecting it to ports 1 and 4 on the lnb instead of
ports 1 and 2?

tkr001
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  #706977 26-Oct-2012 15:06
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You could try it but it should make no difference. I have a quad with 3 ports occupied and I can have 1, 2 or 3 boxes plugged in at any point in time without problems. If you are comfortable playing around you could try turning power to the lnb off in a box to see if it makes a difference.

JPFX

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  #706985 26-Oct-2012 15:20
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Will give that ago tonight, I thought it must be a cable fault but each wire works
fine by itself. Very strange.

JPFX

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  #707391 27-Oct-2012 11:38
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Here's the update, tried it in different ports on the LNB still the same.
Tried turning off LNB power on the second decoder still the same.
As soon as I plug a second decoder in it says no signal on both units.
Both wires work by themselves in both units. Any ideas to try?

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