A height finder is a ground based aircraft altitude measuring device.
Early height finder implementations were optical devices and later migrated to radar devices. Devices combining both optics and radar were deployed by the U.S. Military.
Famous quotes containing the word height:
“Tell me of the height of the mountains of the moon, or of the diameter of space, and I may believe you, but of the secret history of the Almighty, and I shall pronounce thee mad.”
—Henry David Thoreau (1817–1862)
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