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Traditional data collection software used fixed masks (satellite elevation level, SNR values, PDOP,etc.) to determine which GPS satellite signals to shield. Although this insured that most poor signals were rejected, it also caused many perfectly usable signals to be ignored. Because the new Trimble postprocessing engine achieves better results when it is connected to more GPS measurements, the new default GPS slider is now set to Productivity. 
According to Trimble’s latest “White Paper” article titled, “Trimble Mapping & GIS Products: New Postprocessing Enginge,” the “new settings ensure optimal postprocessed accuracy due to the engine’s ability to select and use the GPS satellite measurements.” Simply put, a new and improved GPS satellite selection application will allow you to produce better results by connecting to more satellites.
Position yield potential is also greatly increased around environments such as Trimble’s Test Site 2 (typical) and Test Site 3 (extreme) where obstacles could effect postprocessed data accuracy. According to Trimble, yield in a suburban (Test Site 2) area can increase by 20% and over 40% in a forested environment (Test Site 3).
