by Bitmonster » Thu May 24, 2007 3:08 pm
It depends on the type of STB. If they all use different IR remote codes, they all can be controlled. But mostly if the STBs are from the same type, they use the same code and you are therefore limited. One way to get around this is the use of the zones feature of the USB-UIRT. It allows you to attach two additional blaster diodes that can be controlled independently. So if you ensure one blasters can't reach the other boxes, you can use three of the same kind (two external blasters and the internal blaster).