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![Erecting EPI (Electronic Position Indicator) antenna theb2297.jpg Erecting EPI (Electronic Position Indicator) antenna](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb2297.jpg?itok=r2hvcDmj)
Description
Erecting EPI (Electronic Position Indicator) antenna.EPI was a medium frequency system that was useable out to 200 miles.Invented within the Coast and Geodetic Survey (Image credit: C&GS; Season's Report Reed 1951-123)
Credit
C&GS; Season's Report Reed 1951-123
Display Date
1951
Location
Nunivak Island, Bering Sea, Alaska
Collection
Historic Coast & Geodetic Survey
Nautical Charting
Navigation
High & Medium Frequency Navigation Systems
Keywords
Charting
Navigation
Electronic
HF and MF Systems