EASA NAV(A)advanced
113. When is shoreline effect greatest?
Answer
Acute angle to coast; below 6000 ft
Explanation
The shoreline effect is greatest at low altitude when signals cross a coastline at an acute angle, producing bearing errors. **Key takeaway:** NDB bearing accuracy can be affected by coastal propagation. **Glossary:** Shoreline effect: radio-bearing error associated with propagation across a coast.
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