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Radar module 3 of 9

Range, Bearing, VRM, and EBL

Using range rings, variable range markers, electronic bearing lines, and radar fixes.

range ringsVRMEBLradar fixing

What to know for Range, Bearing, VRM, and EBL

Measure range and bearing accurately enough to support navigation and collision decisions.

Using range rings, variable range markers, electronic bearing lines, and radar fixes. This module is mapped to the published course boundary for Marine Radar Revision and written as an independent revision aid, not official training material.

Key Points

  • VRM measures range to an echo
  • EBL measures bearing to an echo
  • A range and bearing can identify a charted object
  • Repeated measurements show whether risk is changing

Last reviewed: 6 July 2026 by Compass Revision curriculum review

Source notes

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