General Information

Serial #

RT62-1-121

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

ALUMINUM REFLECTOR/ METAL PEDESTAL, LEGS, CONTROL UNITS & HOUSINGS, PARTS/ RUBBER GASKETS/ GLASS SPIRIT LEVEL/ SYNTHETIC PARTS

Dimensions

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

Length

290.0 cm

Width

278.0 cm

Height

300.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper air pressure, temperature & humidity measurement

Sub-Category

N/A

Manufacturer

AKA

Bendix

Country

United States of America

State/Province

Maryland

City

Baltimore

Context

Country

Canada

State/Province

Ontario

Period

THE GMD SYSTEM WAS FIRST ADOPTED BY AES CA. 1960 & WAS USED UNTIL THE MID 1990'S.

Canada

AMERICAN MADE EQUIPMENT USED BY THE CANADIAN METEOROLOGICAL SERVICE IN ITS RADIOSONDE FORECASTING & RESEARCH PROGRAMME. THE ADRES (AEROLOGICAL DATA REDUCTION SYSTEM) USED TO CONTROL THE SYSTEM & PROCESS THE DATA WAS COMPOSED AT LEAST PARTIALLY OF EQUIPMENT SPECIFICALLY MADE IN CANADA FOR THAT PURPOSE.

Function

THE ANTENNA OF A RADIOSONDE RECEIVING STATION, PART OF A SYSTEM TO TRACK BALLOON-BORNE RADIOSONDE TRANSMITTERS AUTOMATICALLY. THE RADIOSONDE SIGNAL CONTAINING METEOROLOGICAL DATA IS RECEIVED BY THE ANTENNA, AMPLIFIED, & FED INTO A COMPUTER CONTROLLED DATA REDUCTION SYSTEM.

Technical

THE GMD (GROUND METEOROLOGICAL DEVICE) SYSTEM SUCCEEDED THE MSC'S METOX RADIOTHEODOLITE & MANUAL DATA REDUCTION SYSTEM (REF.3). THE METOX ANTENNA WAS A SQUARE ARRAY OF 32 HALF-WAVE ELEMENTS. THE GMD WAS BEING REPLACED IN THE 1990'S BY A MULTIPOLE YAGI TYPE ANTENNA, WHICH REQUIRED NO TRACKING.

Area Notes

Unknown

Details

Markings

PLATE ON DISH READING 'ANTENNA AS-1117/GMD-2/ SERIAL NO. RT62-1-21/ CANADA DEPT. OF TRANSPORT - METEOROLOGICAL BRANCH/ BENDIX CORP. - FRIEZ INSTRUMENT DIV. BALTO., MD.'/ IDENTICAL PLATES ON RECEIVER, CONTROL, & PEDESTAL UNITS READING RESPECTIVELY 'RAWIN RECEIVER R-301E/GMD-1/ SERIAL NO. RT62-5-21S', 'ANTENNA CONTROL C-578D/GMD-1/ SERIAL NO. RT62-4-21S', & 'PEDESTAL AB-159E/GMD-1/ SERIAL NO. RT62-6-21' WITH MFR'S INFO./ METLALLIC LABELWITH TYPED 'ACTD/ 5038-00973' ON RECEIVER/ WHITE LETTERING FOR CONTROL FUNCTIONS/ GREEN IMPRESSION PRINTED LABEL ON SCANNER READING 'M106-002'

Missing

TELESCOPE USED TO ORIENT ANTENNA TO ASSIST TRACKING.

Finish

REFLECTOR, PEDESTAL, LEGS, CONTROL UNITS & HOUSINGS PAINTED MILITARY GREEN ENAMEL/ WHITE SCANNER/ METALLIC & PLATED PARTS/ BLACK, GREY, 7 WHITE SYNTHETIC PARTS

Decoration

N/A