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> Twinhan LNB in and out, Connecting two DVB-S cards to one dish with one cable
tbergman
post Sep 30 2009, 12:23 PM
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Hi all,

I'm a newbie here, so please forgive me if this question has been asked and answered before. I did a search and couldn't find anything.

I have 2 Twinhan 1020A cards. I want to be able to hook them up in series to the same dish. i.e. Dish to card 1 lnb in - card 1 lnb out to card 2 lnb in.

Is this possible? I understand about the 18v supply to the lnb.

Any info would be helpful.

Cheers

TB
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bear
post Sep 30 2009, 07:17 PM
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QUOTE
Is this possible? I understand about the 18v supply to the lnb.
Suggest you use a two way splitter, i.e. 1 port in and two ports out. Make sure you have DC Pass on both output ports so the LNB can be powered by either cards. If you have a dual polarised LNB then you will not be able to select the polaisation as it uses 18/13V switching power. Alternatively you could look at DiSEqC for switching but again your limited to one card as control. Best approach is to use a dual Polarised dual LNB with 2 outputs, run two cables and then you can operate both cards at the same time on different transponders horz or vert.
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tbergman
post Oct 1 2009, 02:07 PM
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QUOTE (bear @ Sep 30 2009, 07:17 PM) *
Suggest you use a two way splitter, i.e. 1 port in and two ports out. Make sure you have DC Pass on both output ports so the LNB can be powered by either cards. If you have a dual polarised LNB then you will not be able to select the polaisation as it uses 18/13V switching power. Alternatively you could look at DiSEqC for switching but again your limited to one card as control. Best approach is to use a dual Polarised dual LNB with 2 outputs, run two cables and then you can operate both cards at the same time on different transponders horz or vert.



Thanks for that. very useful information. I was a bit wary of hookink them in series because I suspected I might fry the LNB.

I'm using the dish provided by Foxtel, so I doubt it's dual polarised.

Thanks again.

TB
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bear
post Oct 1 2009, 05:46 PM
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I'm using the dish provided by Foxtel, so I doubt it's dual polarised.
I imagine you can just replace the LNB to suit your needs.
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