Re-Tweeted GPS Messages

If the DVL is set to re-tweet (forward, relay, pass thru) GPS messages, any message (sentence) coming in the GPS hardware port is forwarded to the main communication link to the host. Differing GPS units may output various kinds of NMEA sentences. Messages are forwarded line-by-line (sentence-by-sentence). Each message is appended to the string “GPS:” to differentiate it from the DVL’s $GPRMC output message. Messages may be delayed by up to 0.25 seconds.

The re-tweeted GPS sentences from the Cerulean Sonar GPS may include:

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