Modulation Updated 19 April 2018 10:40 Follow A method of encoding a message signal on top of a carrier, which can be decoded at a later time. Related articles NMEA 0183 Tides-If I restart QC does Tides restart? Geoid What is the difference between terms dual beam, dual constellation and dual frequency? A critical operation is planned for later today. What preparations can I make within Verify-QC? Comments 0 comments Please sign in to leave a comment.