How accurate is the PC5L-GPS at locating ones position?
With differential correction, the horizontal accuracy is from 1-5 meters (95% of the time) when HDOP < 4. Without differential correction, 95% of the time your position is within 38 meters when HDOP < 4 (with SA off). Differential accuracy can be described as 2 meter CEP accuracy (CEP, for Circular Error Probability, means 50% of points will be within 2 meters of your true location) or as 2.5 meter RMS accuracy (RMS, for Root Mean Square, means that 63% of points will be within 2.5 meters of the true location), or as 5 meter 95% confidence accuracy (95% of points will be within 5 meters).