Trilateration in GPS: Illustration of the principle of trilateration in GPS

Trilateration in GPS: Illustration of the principle of trilateration in GPS

Trilateration in GPS: Illustration of the principle of trilateration in GPS

Trilateration in GPS: Illustration of the principle of trilateration in GPS

Travel Bug: Example of a Travel Bug tag with plastic toy attached.

Travel Bug: Example of a Travel Bug tag with plastic toy attached.

Travel Bug: Example of a Travel Bug tag with plastic toy attached.

Travel Bug: Example of a Travel Bug tag with plastic toy attached.

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