pl23_theb2299.jpg
Description
Carl Aslakson monitoring EPI receiver on HYDROGRAPHER.Field testing of EPI - first medium frequency survey navigation system.Invented within the Coast and Geodetic Survey
Credit
Family of Captain George L. Anderson, C&GS;
Display Date
August, 1948
Location
Gulf of Mexico
Collection
Historic Coast & Geodetic Survey
Nautical Charting
Navigation
High & Medium Frequency Navigation Systems
Keywords
Charting
Navigation
Electronic
HF and MF Systems