Universal Satellites Automatic Location System (USALS), also known (unofficially) as DiSEqC 1.3, Go X or Go to XX is a satellite motor protocol that automatically creates a list of available satellite positions in a motorised satellite dish setup. It is used in conjunction with the DiSEqC 1.2 protocol. It was developed by STAB, an Italian motor manufacturer, who still make the majority of USALS compatible motors.
In most cases it is sufficient to simply unplug the analog receiver and connect the antenna cable to the new digital box. As a general rule the antenna alignment should remain unchanged, unless the dish has not been aligned properly in the first place and needs fine tuning. All this should not pose a big problem.
The regional broadcasters, which from november on Astra-1 (19.2 East) to see, move per 1.9.2007 to the Astra-3 at 23.5 East, the schotelbezitter his installation to adapt to both positions to be received. For both positions performed with a fixed dish to receive sufficient exchange of the LNB for a monblock. Choose However, the correct model!