Attenuator

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Ingenium, 1999.0350.001
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OBJECT TYPE: VARIABLE/10 CM IF
DATE: Unknown
ARTIFACT NUMBER: 1999.0350.001

MANUFACTURER: NRC, Radio & Electrical Engineering Div.
MODEL: ALGONQUIN RADIO OBSERVATORY
LOCATION: Ottawa, Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: METAL, WITH PLASTIC VANE IN WAVEGUIDE/ SYNTHETIC DIAL INDICATOR WITH SYNTHETIC WINDOW

Dimensions

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

Length: 43.1 cm
Width: 19.8 cm
Height: 13.3 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Service-test equipment
Sub-Category: N/A

Manufacturer

AKA: NRC
Country: Canada
State/Province: Ontario
City: Ottawa

Context

Country: Canada
State/Province: Ontario
Period: Unknown
Canada: INSTRUMENT USED AT ALGONQUIN RADIO OBSERVATORY, DESIGNED & MFD. BY NRC/ARO. ARO WAS ESTABLISHED IN LATE 1950S TO PROVIDENATIONAL RADIO OBSERVATORY PROVIDING FACILITIES TO CONTINUE TO MONITOR SUN IN COLLABORATION WITH DOMINION RADIO ASTROPHYSICAL OBSERVATORY (DRAO) ESTABLISHED IN 1957 IN PENTICTON, BC.
Function: RADIO ASTRONOMY INSTRUMENT WHICH SHIFTS PHASE OF SIGNALS FROM DIFFERENT ANTENNA SO ALL ARE IN PHASE WHEN THE SIGNALS REACH RECEIVER.
Technical: CUSTOM MADE INSTRUMENT DESIGNED & MADE BY NATIONAL RESEARCH COUNCIL'S RADIO & ELECTRICAL ENGINEERING DIVISION FOR ALGONQUIN RADIO OBSERVATORY.
Area Notes: Unknown

Details

Markings: BLACK LETTERING ON DIAL READS "PRD/ ELECTRONICS, INC." WITH CALIBRATIONS FOR 0 TO 100/ LABEL READING "NATIONAL RESEARCH COUNCIL/ RADIO AND EE. DIV./ INSTRUMENT NO./ R2695"/ HANDWRITTEN "530 [DEGREES] K"/ LABEL READING "STEL BAL"
Missing: APPEARS COMPLETE
Finish: TEXTURED GREY FINISH ON WAVE GUIDE EXTERIOR/ BLACK DIAL WITH WHITE FACE, COLOURLESS TRANSPARENT WINDOW/ BLACK PAINTED CONTROL KNOB
Decoration: N/A

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NRC, Radio & Electrical Engineering Div., Attenuator, Unknown Date, Artifact no. 1999.0350, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1999.0350.001/

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