The TDC4 can be switched for use as either a standard Quattro converter, or as a switch with dSCR or Quad output.
The TDC4 can be used in two modes at the flick of a switch. Either as a Quattro converter, to give vertical and horizontal high and low bands (+ a separate terrestrial output), or as a 4 output switch
with dSCR or Quad output, combining the terrestrial signals on all 4 outputs.