OK ... I see what you want
you've split the wrong point
First let me say - this isn't my area .... but I do spend a lot of time in maplins
the co-ax from the dish needs to be split into two feeds
----------box1 --- tv1
Dish ----|
----------box2 ---tv2
not
dish ------------box1 -------box2
| |
TV1 TV2
I think this is the beastie you need (but the guy on the counter will give you the gen)
http://www.maplin.co.uk/module.aspx?tabs=n&Mod uleNo=9273&ma=satellite%20signal%20splitter
the ideal is a double LNB - but they are �39
Maplins are normally very good with advice .... you can always throw yourself on their mercy ... and then if it's too much (in the words of the news of the world) make your excuses and leave