"Up to 5 km or 3.1 miles (unobstructed, free of interference) when FCC compliant Up to 3.5 km or 2.1 miles (unobstructed, free of interference) when CE compliant" When I bought my p3p October 18th it said 2 km fcc. Did something in the hardware change? Or do you think this is with the windsurfer antenna booster? My best so far is 2.1 km... Completely stock still. Then my video cuts out. Is this maybe just something in the new firmware?