At what height do navigation compasses stop working?

How To Use A Compass - Hillwalk Tours Self-Guided Hiking Tours

Navigation - Distance, Measurement, Instruments

Understanding ILS

Explained: The science behind how compasses work - Times of India

Using a compass

Large Size Stainless Steel Directional Magnetic Compass

How high do you have to go before a compass will stop working? - Quora

At what altitude do compasses cease to work? : r/askscience

How to Use a Compass: Compass & Map Navigation Guide - Task & Purpose

Guide: Navigation Techniques : r/selfreliance

Why does a compass give different directions for different heights? I placed it on the ground and it gave me a different direction of a place. I brought it to my chest

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