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OBJECT TYPE
cardboard
DATE
Unknown
ARTIFACT NUMBER
2000.0014.012
MANUFACTURER
Unknown
MODEL
Bell ExpressVu
LOCATION
United States of America

More Information


General Information

Serial #
N/A
Part Number
12
Total Parts
13
AKA
N/A
Patents
N/A
General Description
CARDBOARD WITH SYNTHETIC FOAM PADDING

Dimensions

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

Length
62.0 cm
Width
58.5 cm
Height
21.3 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
Unknown
Country
United States of America
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Unknown
Period
UNUSED - BUT GENERALLY LATE 1990'S TO EARLY 2000'S
Canada
CANADA WAS PIONEER IN DIRECT-TO-HOME SATELLITE TV TECHNOLOGY, BEGINNING WITH EXPERIMENTS WITH HERMES & ANIK SATELLITES IN LATE 1970'S. FIRST DIRECT BROADCAST SATELLITE LICENSE ISSUED BY CDN GOV'T WAS TO BELL EXPRESSVU IN LATE 1995. EXPRESSVU 4700 IS KU BAND RECEIVER TYPICAL OF TYPE AVAILABLE IN CANADA.
Function
SYSTEM WHICH ENABLED DIRECT-TO-HOME TRANSMISSION OF SATELLITE TELEVISION SIGNALS. IT WAS USED TO RECEIVE & AMPLIFY DIGITAL SIGNALS RECEIVED FROM SATELLITE IN GEOSTATIONARY ORBIT, & DECODE & CONVERT DIGITAL INPUT INTO ANALOG OUTPUT FOR VIDEO DISPLAY & AUDIO SYSTEM.
Technical
EXPERIMENTS WITH HERMES & ANIK SATELLITES PROVED IT WAS FEASIBLE TO TRANSMIT TELEVISION TO ANTENNAS AS SMALL AS 0.6 M, USING POWERFUL AMPLIFIERS & KU BAND. FIRST WIDESPREAD USE OF SATELLITES FOR TELEVISON TRANSMISSION INVOLVED LESS EFFECTIVE C BAND WITH DISHES OF 10-12 FT IN DIAM. IN 1980'S. DBS SYSTEM OF 1990S OPERATED IN KU BAND & COMPRESSED DIGITAL SIGNALS RATHER THAN ANALOGUE.
Area Notes
Unknown

Details

Markings
BLUE LETTERING IN ENGLISH & FRENCH ON EXTERIOR READING "Bell/ ExpressVu/ MPEG-2 Digital Satellite System
Missing
N/A
Finish
NATURAL CARDBOARD, WHITE PADDING
Decoration
BLUE BELL EXPRESSVU LOGO ON TOP & SIDES

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Unknown Manufacturer, Box, Unknown Date, Artifact no. 2000.0014, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2000.0014.012/

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