First field testing of Raydist on the SOSBEE.
Medium frequency survey navigation system
Image ID: theb2300, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Tampa Bay area, Florida
Photo Date: 1954
Credit: C&GS Season's Report Bolstad 1954-87
Category: Charting/Navigation/Electronic/HF and MF Systems/
• High Resolution Photo Available