if you have the right lenth of cable, to go around the room, you will need two, (twist-on F plugs) for to go each end of your new cable. put one on each end look at how its is attached to the lead on the cable that is comming from the box , take the cable out of the sky box end only. get a ( F connector socket to socket" coupler) screw that into the lead end that you took out of the skybox, now get your new cable lead with the ( twist-on f plugs) and screw them into each , other and put the other end of the new cable lead that has the other ( twist-on f plugs) into the sky box. you can get them in maplins , look up their web page , to make sure that they dont come off the lead use tape. to hold them on tape them well , good luck
mick, November 2008