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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

5000 thumbnail picture
Shoran installation at Port Clarence.
5001 thumbnail picture
Diagram of range-range navigation geometry. Hydrographic Manual
5002 thumbnail picture
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
Nunivak Island, Bering Sea, Alaska 1951
5003 thumbnail picture
EPI antenna mast used in Bering Sea operations.
1951
5004 thumbnail picture
Carl Aslakson monitoring EPI receiver on HYDROGRAPHER. Field testing of EPI - first medium frequency survey navigation system. Invented within the Coast and Geodetic Survey
Gulf of Mexico August, 1948
5005 thumbnail picture
First field testing of Raydist on the SOSBEE. Medium frequency survey navigation system
Tampa Bay area, Florida 1954
5006 thumbnail picture
Raydist watch on the HYDROGRAPHER. Hydrographic surveying operations
Gulf of Mexico 1958
5007 thumbnail picture
Electronic survey equipment on HYDROGRAPHER. Field testing of electronic survey equipment
Gulf of Mexico 1959
5008 thumbnail picture
Setting up a Raydist tower. Base plate with tower and cable - tower assembled from 10-foot aluminum sections . Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #1 of sequence
Texas coast 1965
5009 thumbnail picture
Setting up a Raydist tower. Preparing the gin pole - basically a large lever arm. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #2 of sequence
Texas coast 1965
5010 thumbnail picture
Setting up a Raydist tower. Ready to erect tower. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #3 of sequence
Texas coast 1965
5011 thumbnail picture
Setting up a Raydist tower. Lifted a little. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #4 of sequence
Texas coast 1965
5012 thumbnail picture
Setting up a Raydist tower. About half-way up. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #5 of sequence
Texas coast 1965
5013 thumbnail picture
Setting up a Raydist tower. Most of the way up. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #6 of sequence
Texas coast 1965
5014 thumbnail picture
Setting up a Raydist tower. Tower in position and ready to transmit. Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #7 of sequence
Texas coast 1965
5015 thumbnail picture
Erecting a 100-foot Raydist tower with a 30-foot gin pole. Party off of PATHFINDER
Lower Cook Inlet, Alaska 1970
5016 thumbnail picture
NOAA helicopter supporting Raydist tower installation. Party off of SURVEYOR
Prince William Sound area, Alaska 1977
5017 thumbnail picture
Electronics for loading Raydist tower.
5018 thumbnail picture
Operational Raydist station at Kamishak Bay. Installation by party off of PATHFINDER
Alaska, Kamishak Bay 1969
5019 thumbnail picture
ARGO tower being installed. Installation by party off of FAIRWEATHER
Alaska 1985
5020 thumbnail picture
Raydist tower at Cape San Blas. Note man at top of tower making final adjustments. Installed by party off of NOAA Launch 1257
Florida, Cape San Blas 1978
5021 thumbnail picture
Assembling Raydist tower sections. Party off of NOAA Launch 1257
Florida, Cape San Blas 1978
5022 thumbnail picture
Electronics for loading Raydist tower. Party off of NOAA Launch 1257
Florida, Cape San Blas 1978
5023 thumbnail picture
Erecting ARGO navigation tower. Party off of MT. MITCHELL
Louisiana coast 1988?
5024 thumbnail picture
Erecting ARGO navigation tower. Party off of MT. MITCHELL
Louisiana coast 1988?
5025 thumbnail picture
Erecting ARGO navigation tower. Making final adjustments - not a good job for acrophobics. Party off of MT. MITCHELL
Louisiana coast 1988?
5026 thumbnail picture
Erecting ARGO navigation tower. Making final adjustments - not a good job for acrophobics. Party off of MT. MITCHELL
Louisiana coast 1988?
5027 thumbnail picture
Erecting ARGO navigation tower. Making final adjustments - not a good job for acrophobics. Party off of MT. MITCHELL
Louisiana coast 1988?
5028 thumbnail picture
Using Coast Guard light tower as base for ARGO whip antenna. Party off of PEIRCE
Delaware, Bowers Beach 1985
5029 thumbnail picture
Hydrotrac navigation system antenna in lower Cook Inlet. Party off of PATHFINDER
Lower Cook Inlet, Alaska May 1971
5030 thumbnail picture
ARGO shipboard electronics package. On PEIRCE
Bahama Islands, Eleuthera Island 1984
5031 thumbnail picture
Plotting Raydist readings with Odessey protractor. Note circular arcs on boat sheet denoting range-range navigation. Launch party off of PIONEER
Kwajalein Island, Kwajalein Lagoon 1960
5032 thumbnail picture
Raydist strip chart record used to keep track of individual navigation rates. These strip charts required continuous monitoring by a watch-stander. Used to assure navigational accuracy during hydrographic surveying operations. First tests of Raydist on SOSBEE in 1954. Used for over 40 years with various systems
Tampa Bay area August 20, 1954
5033 thumbnail picture
ARGO strip chart record on SURVEYOR.
California, Monterey Bay 1988
5034 thumbnail picture
ARGO strip chart record on PEIRCE.
Bahama Islands, Eleuthera Island 1984
5035 thumbnail picture
Maintaining Raydist strip chart watch.
5036 thumbnail picture
Testing moored instrument package for GATE Project. Operations on NOAA Ship WHITING
Off Delaware Bay entrance September 1972
5037 thumbnail picture
Testing moored instrument package for GATE Project. Operations on NOAA Ship WHITING
Off Delaware Bay entrance September 1972
5038 thumbnail picture
Testing moored instrument package for GATE Project. Operations on NOAA Ship WHITING
Off Delaware Bay entrance September 1972
5039 thumbnail picture
Testing moored instrument package for GATE Project. Operations on NOAA Ship WHITING
Off Delaware Bay entrance September 1972
5040 thumbnail picture
Testing moored instrument package for GATE Project. Operations on NOAA Ship WHITING
Off Delaware Bay entrance September 1972
5041 thumbnail picture
Bringing Shoran gear up a cliff for shore camp by using strongback. Operations off of SURVEYOR
Lower Cook Inlet, Alaska 1967
5042 thumbnail picture
Bringing Shoran gear up a cliff for shore camp. Operations off of SURVEYOR
Lower Cook Inlet, Alaska 1967
5043 thumbnail picture
Geometry of first microwave navigation system tested by C&GS. Converted range readings to lines of equal angles between stations. Used for high-accuracy inshore work. After testing, determined not sufficiently accurate for large-scale surveys. Tested on SOSBEE
Tampa Bay area 1960
5044 thumbnail picture
Microwave navigation system - shore installation on tower. Tower merely a platform and not loaded. Tested on SOSBEE
Tampa Bay area 1960
5045 thumbnail picture
Microwave navigation system - shore installation on tower. Tower merely a platform and not loaded. A line-of-sight system -- the higher the tower, the further the reception. Tested on SOSBEE
Tampa Bay area 1960
5046 thumbnail picture
Installing a microwave navigation system. Installing system on Georgia Coast day marker. Party off of WHITING
Ossabaw Sound area, Georgia 1974
5047 thumbnail picture
Erecting a 30-foot tower for a microwave transponder. Assistant Boatswain "Colonel" Sanders. Party off of WHITING
Ossabaw Sound area, Georgia 1974
5048 thumbnail picture
Chief Electronics Technician Slim Tittle hooking up batteries. Power source for microwave navigation system. Party off of WHITING
Ossabaw Sound area, Georgia 1974
5049 thumbnail picture
Carrying batteries for microwave navigation system. Party off of WHITING. Party off of WHITING
Lovango Cay, U. S. Virgin Islands 1975

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Last Updated:
April 30, 2013