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225 posts

Master Geek

# 49530 19-Nov-2009 12:15
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Hi Geekzoners,

Thought I had this sussed in my head (means trouble), and thought I'd better check...

What I would like to do is receive Freeview/SBS and BBC/Australia Network from the one dish on my HTPC in the lounge and a separate STB in the granny flat. Being able to watch the same channel at both ends too!

I think I would need a 90cm dish with 1 LNB for Optus D1 and 1 for Intelsat 5 (mounted on a suitable bracket) with a RG6 cable from each LNB plugging into a 2 way switch. A single cable would then carry all the signals. A splitter would then split the signals to go to the HTPC and the granny flat.

The HTPC has  2 sat inputs so I can watch and record tv, so I would need to split the cable coming into the lounge again. It is currently running Windows 7 RC. The cable going into the granny flat would be plugging into a generic STB capable of scanning the non freeview channels.

Will this work provided the signal is strong enough?
Anything I have most likely missed?
If the granny flat gets SKY, will it work on this setup? Will the SKY man have to do anything else other than plug inthe SKY box and tune in?

Any advice, comments and much appreciated!


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1699 posts

Uber Geek


  # 274595 19-Nov-2009 21:53
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right, the first problem I see is this....

running c-band (D1) and Ku-band (IS5) off the same dish would be quite a hassle, especially on such a small dish. Mainly as Ku band dishes are offset, whereas C-band dishes are prime focus.

You'd need a DisEqC switch for the two LNB's.

With the splitter at the other end, you need one set top box to be the master, that will power the LNB's and determine which dish is being used.

Also, IS5 is at 169E, and D1 at 160E, this might be too much of a gap. I can run C1, D1 and D2 off the same dish (152, 156, 160E), but that's all Ku band.

Have a read of this, explains a bit

1091 posts

Uber Geek

  # 274680 20-Nov-2009 10:09
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We're having a somewhat similar discussion over here:

basically you want to have 3 different devices (2cards and a stb) all trying to control the same switch which won't work.


225 posts

Master Geek

  # 274718 20-Nov-2009 12:28
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Man, I have no idea! Thanks for the comments, might have to go down the separate dish route for the granny flat via a sky installation.

@allstarnz - my desire to get the extra channels from the different bands is from looking over at who have a package that claims to get bbc/aust network with freeview via a 90cm dish. So is a 90cm dish the absolute minimum?

@mcranez - thanks for the link, I'll be following to see how it goes.

225 posts

Master Geek

  # 275404 23-Nov-2009 11:00
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Doing some searching and reading - might have the answer - a 3 into 4 satellite multiswitch. Has inputs for 2 dishes/lnbs as well as terrestrial and 4 outputs for separate STBs. Each sat input is for different polarities, ie 1 is horizontal, 1 is vertical, so I could try and get SBS on vertical input and BBC/Aust Network on horizontal and Freeview on terrestrial.

Anyone have expertise on this???

1699 posts

Uber Geek


  # 275420 23-Nov-2009 11:53
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a 90cm is the absolute minimum for IS5 c-band. In fact i'm amazed you can get anything C-band on a 90cm.

147 posts

Master Geek

  # 278441 1-Dec-2009 18:43
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I am using a 120cm offset dish with a conical feed for C band IS 5, and a multi holder for D1,D2 and C1 Ku. It would be a simple matter to install dual output Lnb's, take them through 2 DiSEqC switches to individual STB's.

1699 posts

Uber Geek


  # 278513 1-Dec-2009 21:51
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kiwisat: I am using a 120cm offset dish with a conical feed for C band IS 5, and a multi holder for D1,D2 and C1 Ku. It would be a simple matter to install dual output Lnb's, take them through 2 DiSEqC switches to individual STB's.

so to do this, you just point your dish at 169°E, then mount the triple bracket on the side?  You have any trouble with low reception levels?

you use a scalar ring for your c-band LNB?


147 posts

Master Geek

  # 278561 2-Dec-2009 00:33
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Yes I use a conical, offset C Band style. No not a problem with low reception at all. Intelsat 8 Ku is too close without carving a chunk out of the scalar if you get my drift, but plenty of signal on those other three.

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