#TN003

 #Summary

Why does the differential light flash on and off?

 #Problem

1. seaPro incorrectly setup.
2. Problem with the transmitted differential signal.

#Solution

seaPro incorrectly setup.

1. Select “Setup” from the main menu, then “Nav properties”, and then “NMEA Rx”.
2. Tick the “GGA” NMEA sentence, and remove the tick from any other “Position” sentence, E.g. “GLL”

Problem with the transmitted differential signal.

1. Check that you are in range of a transmitter.
2. Check that the GPS is receiving the differential correction.
3. Check that the transmitter is functioning.