A system and method for positioning a dish antenna having a plurality of low noise block converters for the simultaneous reception of signals from a plurality of satellites in a direct broadcast satellite system. An integrated receiver/decoder alternately powers at least two low noise block converters to sample signals for comparison to a threshold value to detect a peak signal for each of the low noise block converters. When the peak signals are detected, they are compared to a master threshold to indicate a master lock for the system.