hydrodist

hydrodist

[′hī·drə‚dist]
(navigation)
A navigation positioning system in which two separate tellurometers are mounted side by side on board a vessel and aimed at their respective remote units.
References in periodicals archive ?
Aerodist was part of the family of microwave distance measuring systems (together with the ground-based Tellurometer and the Hydrodist system for marine applications) invented by South African electrical engineer Dr Trevor Lloyd Wadley.