General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

INVAR (ALUMINUM ALLOY)

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

49.5 cm

Width

46.5 cm

Height

2.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Space Technology

Category

Communications

Sub-Category

N/A

Manufacturer

AKA

SPAR

Country

Canada

State/Province

Québec

City

Ste-Anne-de-Bellevue

Context

Country

Unknown

State/Province

Unknown

Period

1985 TO C.1992

Canada

EQUIPMENT MADE BY CANADIAN MANUFACTURER SPAR, A WORLD LEADER IN THIS TECHNOLOGY. INMARSAT WAS THE INTERNATIONAL SATELLITECOMMUNICATIONS ORGANIZATION FORMED IN 1979 FOR MARINE COMMUNICATIONS, OF WHICH CROWN CORPORATION TELEGLOBE CANADA WAS A FOUNDING MEMBER. IT USED UHF TRANSPONDERS TO PROVIDE LOW CAPACITY SERVICE TO TERMINAL ON BOARD SHIPS IN INTERNATIONAL WATERS.

Function

PART OF THE INMARSAT II L-BAND RECEIVE ANTENNA, USED FOR RECEIVING MICROWAVE SIGNALS FROM SHIPS & AIRCRAFT. IT SERVES TO DIVIDE THE POWER OF THE SIGNALS RECEIVED VIA THE FEED HORNS FROM A BEAM THAT IS SHAPED AS CLOSELY AS POSSIBLE TO THE AREA OF THE COUNTRY TO BE COVERED.

Technical

EXAMPLE OF SPAR'S INTEGRATED DESIGN APPROACH TO BFN'S USING TEM LINE, A COAXIAL MEDIUM WITH A SQUARE OUTER CONDUCTOR. THIS PERMITS THE OUTER & INNER CONDUCTORS TO BE MACHINED BY MILLING. THUS A WHOLE NETWORK CAN BE MADE BY MACHINING THE SIGNAL PATHS WITHIN A SINGLE PIECE OF ALUMINUM, ELIMINATING A LARGE NUMBER OF JOINTS & INTERFACES.

Area Notes

Unknown

Details

Markings

'SCRAP' HAND INCISED ON 1 SIDE

Missing

N/A

Finish

WHITE FINISH FORMED BY ANODIZED SILVER COATING

Decoration

N/A