Q: I want to set Soundvelocity reference and have alarm shown in Helmsman when Soundvelocity changes more than error limit set in the project. How do I do that?
A: Under Project settings - Online you can set Soundvelocity reference. There you have 2 options, either use 0 to use Soundvelocity profile ray trace start level or set reference number.
Under Soundvel error limit you set the limit that if exceeded, alarm will sound.
Same Soundvelocity profile can be seen in NaviScan: Showing Sound velocity from Sonar head in NaviScan Online : EIVA Support
More about option Online SVP in Project Settings - Online: Use Online SVP : EIVA Support