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NOAA Photo Library Image - theb2299

Carl Aslakson monitoring EPI receiver on HYDROGRAPHER. Field testing of EPI - first medium frequency survey navigation system. Invented within the Coast and Geodetic Survey

Image ID: theb2299, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Gulf of Mexico
Photo Date: August, 1948
Credit: Family of Captain George L. Anderson, C&GS

Category: Charting/Navigation/Electronic/HF and MF Systems/

High Resolution Photo Available





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Last Updated:
May 12, 2014