Antenna
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1990.0275.001
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- OBJECT TYPE
- EARTH/SATELLITE SIGNAL
- DATE
- 1970–1979
- ARTIFACT NUMBER
- 1990.0275.001
- MANUFACTURER
- Chu Associates Inc.
- MODEL
- CA3086M
- LOCATION
- El Cajon, California, United States of America
More Information
General Information
- Serial #
- 153
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL BASE & PROJECTING BARS, SYNTHETIC (FIBREGLASS?) MAST/ SYNTHETIC CARRYING CASE WITH METAL PARTS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 124.0 cm
- Width
- 39.0 cm
- Height
- 35.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Measurement-position
- Sub-Category
- N/A
Manufacturer
- AKA
- Chu
- Country
- United States of America
- State/Province
- California
- City
- El Cajon
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- 1970S-1980S
- Canada
-
AMERICAN MADE COMPONENT OF CANADIAN PRODUCED POSITIONING SYSTEM, USED BY GEODETIC SURVEY OF CANADIAN DEPT. OF ENERGY, MINES, & RESOURCES. IT ENABLED SURVEY OF CANADIAN SUBARCTIC WITHOUT USING MANUAL METHODS SUCH AS TRIANGULATION CHAINS. CANADIAN MARCONI WAS ABLE TO PROVE ITSELF CAPABLE OF HIGH-TECH EQUIPMENT PRODUCTION. - Function
-
USER SEGMENT OF SATELLITE-BASED POSITION LOCATING SYSTEM. ANTENNA PICKED UP SATELLITE SIGNALS & SENT THEM TO RECEIVER-SIGNAL PROCESSOR WHERE DOPPLER SHIFT OF MOVING SATELLITE WAS MEASURED. PAPER TAPE PUNCH PLACED DATA ON TAPE. PAPER TAPE READER INPUT DATA INTO COMPUTER WHICH TRANSLATED IT INTO GEOGRAPHIC POSITION. - Technical
-
PART OF EARLY SPACE-BASED POSITIONING SYSTEM, USED IN NAVIGATION, SURVEYING, ETC. IT MADE USE OF DOPPLER EFFECT MEASURED BY TRACKING SINGLE SATELLITE, & THUS WAS FAIRLY SLOW. IT WAS SUCCEEDED BY MUCH FASTER & MORE PRECISE GPS SYSTEM BASED ON RADIO SIGNALS FROM SEVERAL NAVSTAR SATELLITES. - Area Notes
-
Unknown
Details
- Markings
- PLATES ON ANTENNA READ 'CHU ASSOCIATES INC./ EL CAJON, CALIF./ Model CA3086M Ser. 153/ Freq. 150-400' & 'NNS ANTENNA ASSEMBLY/ CMA-722/ PART NO. 201-471519-000 SER. NO. 102/ WT. 17 LB. MFR. CODE 90073/ CANADIAN MARCONI COMPANY'/ BLACK LETTERING ON CASE EXTERIOR READS 'NNS ANTENNA ASSY/ CMC-201-472269/000/ SER. 102'
- Missing
- UNKNOWN PARTS MISSING FROM STORAGE COMPARTMENTS IN CASE
- Finish
- FLAT GREY PAINTED BASE & MAST/ BRUSHED OR WHITE PAINTED BARS/ GREY CASE WITH METALLIC PARTS & BLACK SYNTHETIC HANDLE GRIPS
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Chu Associates Inc., Antenna, between 1970–1979, Artifact no. 1990.0275, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1990.0275.001/
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