Monday, January 1, 2024

What is an eVDSD?

In 2018 a new standard was developed by the Radio Technical Commission for Maritime Services (RTCM) for an SOS electronic visual distress signal device (eVDSD).

The RTCM SC13200.0 standard for eVDSDs was determined to be acceptable for use by CG-ENG Policy Letter 03-18, dated December 21,2018.

A wide range of eVDSDs are available to provide basic SOS communications for mariners during nighttime situations. 

The U.S. Coast Guard apparently considers eVDSD technology to be a component of a wider safety strategy, stating:

"Any single distress signal should be considered only a part of a vessel’s complete distress system.  Other communications, safety, and distress signal equipment should always be used as personal preparedness for a worse case distress situation."

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