MARINE GPS: CHARTS, WAYPOINTS, AND BACKUP NAVIGATION
Yenra | Reviewed September 15, 2026
https://yenra.com/marine-gps/

HOW TO USE
Complete before relying on the setup. Repeat the trial when equipment, software, service
or project requirements change. Mark each item PASS, FAIL or N/A with evidence. Record
an owner and next action for failures. This worksheet supports the linked guide; consult
exact equipment manuals and applicable trip/project requirements.

Reviewer: ____________________  Date: ____________________

CHART AND TRIP RECORD
[ ] Vessel, waters, departure/destination and date
    Result/evidence: ______________________________________________
[ ] Chart product, region, edition/update date and device compatibility
    Result/evidence: ______________________________________________
[ ] Detailed approaches and alternatives available
    Result/evidence: ______________________________________________
[ ] Hydrographic updates and local notices checked; sources and dates
    Result/evidence: ______________________________________________
[ ] Relevant tide/current sources and intended times
    Result/evidence: ______________________________________________

ROUTE AND SETTINGS
[ ] Every route leg and turn reviewed against appropriate chart detail
    Result/evidence: ______________________________________________
[ ] Depth units and chart datum understood
    Result/evidence: ______________________________________________
[ ] Position format, hemisphere and north reference recorded
    Result/evidence: ______________________________________________
[ ] Position, heading/course sources and intended alarms checked
    Result/evidence: ______________________________________________

POWER AND BACKUP
[ ] Navigation configuration tested at dock
    Result/evidence: ______________________________________________
[ ] Power, batteries, covers and mounting per exact manual
    Result/evidence: ______________________________________________
[ ] Independent chart access and navigation method checked
    Result/evidence: ______________________________________________
[ ] Communications/distress equipment checked separately
    Result/evidence: ______________________________________________
[ ] Open issue, responsible person and resolution before reliance
    Result/evidence: ______________________________________________

SCOPE
Navigation-equipment preparation only; this is not a complete vessel safety checklist.

SOURCE DOCUMENTATION
https://nauticalcharts.noaa.gov/learn/faq.html
https://nauticalcharts.noaa.gov/charts/rescheming-and-improving-electronic-navigational-charts.html
https://www.navcen.uscg.gov/local-notices-to-mariners
https://www8.garmin.com/manuals/webhelp/GUID-3B08322B-C8CA-4CA0-B113-48A7E387A983/EN-US/GUID-7E840CB1-428E-46E0-8F0C-03429E691993.html