GPS receivers accuracy comparison. There are several types of GPS receivers in use. the GPS receivers accuracy depend on its grade.
Survey grade gps receivers are the most accurate and the most expensive. Typically these receivers have sub-centimeter accuracy and cost in the tens of thousands of US dollars. Mapping grade gps receivers typically can produce sub-meter accuracy and cost between US$1,000 and US$5,000 and are designed for high-end cartographic activity. Recreational grade GPS units are designed for use when hunting, hiking, boating etc. Of the three types described, recreational receivers …