I have SKY + Amstrad box and Thomson digibox, just orderd the sky plus combiner which will be connected to the distribution system via a TVlink splitter. At the moment both sky boxes are transmitting UHF on the same frequency which obviously causes major interference. Does anyone know how to alter the output UHF frequency so I can watch sky+ recording upstairs and digibox in the kitchen? This is not shown in the instructions or on the service menu (unless I have missed it) or will the skyplus combiner sort this out? Lee.