DGPS SURVEYOR also provides integrity monitoring. Whenever the accuracy provided by the reference station falls below established limits, a warning signal is automatically transmitted to advise the mariner that the service is unreliable. Should the differential signal be lost altogether, a DGPS Surveyors can continue to operate in the GPS mode.Consult your operator’s manual to verify your receiver’s ability to process and display the integrity monitoring signal.
DGPS (Differential GPS) is essentially a system to provide positional corrections to GPS signals. DGPS Survey uses a fixed, known position to adjust real time GPS signals to eliminate pseudorange errors.