General Information

Serial #

AAC 7913

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL CASING & PARTS/ SYNTHETIC PARTS/ METAL RACK WITH SYNTHETIC FRONT PANELS

Dimensions

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

Length

48.5 cm

Width

56.0 cm

Height

31.0 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

SED

Country

Canada

State/Province

Saskatchewan

City

Saskatoon

Context

Country

Canada

State/Province

Ontario

Period

ADRES EQUIPMENT WAS INTRODUCED CA. 1980 & USED INTO THE MID1990'S.

Canada

A CONTROL MODULE (GCM= GMD CONTROL MODULE) FOR AES' GMD (GROUND METEOROLOGY DEVICE) RADIOSONDE RECEIVING STATION 940146 - 940153. THIS CANADIAN DEVELOPED & MADE EQUIPMENT WAS USED BY THE CANADIAN METEOROLOGICAL SERVICE IN ITS RADIOSONDE FORECASTING & RESEARCH PROGRAMME. THE ADRES WAS A COMPUTER-BASED SYSTEM CAPABLE OF PROCESSING & ANALYSING INPUT METEOROLOGICAL DATA RECEIVED FROM RADIOSONDES & PRODUCING ENCODED MESSAGES FOR TRANSMISSION.

Function

A CONTROL UNIT FOR THE TRACKING ANTENNA OF A RADIOSONDE RECEIVING STATION, USED TO OPERATE THE ASSEMBLY FROM THE OPERATIONS ROOM. IT CONTAINS TIME, RANGE, AZIMUTH, & ELEVATION DISPLAYS & CONTROLS. IT ALSO FUNCTIONED AS AN INTERFACE BETWEEN THE ANTENNA & A COMPUTER.

Technical

DEVELOPED IN THE LATE 1970'S, THE ADRES REPLACED THE ELECTROMECHANICAL SYSTEM OF DATA REDUCTION PREVIOUSLY USED WITH THE GMD, A SYSTEM WHICH REQUIRED CONSIDERABLE CALCULATION. IN THE MID 1990'S THE ADRES WAS REPLACED BY A SINGLE MINI-COMPUTER. ADRES STANDS FOR AEROLOGICAL DATA REDUCTION SYSTEM. THIS RADIOSONDE GROUND SYSTEM WAS REPLACED BY THE VAISALA SYSTEM WHEN THE VIZ/VALCOM RADIOSONDES [2004.0358-.0359, 2005.0041-.0042. 2005.0044] WERE REPLACED BY THE VAISALA RS80 RADIOSONDES [1987.0926, 1991.0096, 1991.0100, 1992.0002, 1994.0140-.0141, 2004.0360, 2005.0043], MOSTLY BETWEEN 1992 AND 1994. THIS EXTERNAL CONTROLLER IS USED WHEN THE RADIOSONDE IS RELEASED TO DIRECT THE GMD ANTENNA TOWARD THE RADIOSONDE AND TO SIGNAL THE MINICOMPUTER TO START STORING THE ANTENNA ANGLES WHICH ARE USED TO COMPUTE THE UPPER WINDS (REF. 4).

Area Notes

Unknown

Details

Markings

BLACK LETTERING FRO CONTROL FUNCTIONS & READING 'SED SYSTEMS LTD/ SASKATOON/ CANADA' & 'GMD CONTROL/ MODULE'; INTERIOR PLATE READING 'EQUIPMENT SERIAL NO. AAC 7913/ ATMOSPHERIC ENVIRONMENT SERVICE/ DEPARTMENT OF THE ENVIRONMENT/ SED SYSTEMS - SASKATOON, CANADA'

Missing

APPEARS COMPLETE

Finish

TEXTURED LIGHT GREY PAINTED CASING FRONTS/ MULTICOLOURED SYNTHETIC CONTROLS, LIGHTS, PARTS/ PLATED & METALLIC PARTS/ GREY ENAMEL PAINTED RACK WITH TEXTURED BLACK PAINTED REAR DOOR & GREY OR BLACK FRONT PANELS

Decoration

BLACK MFR'S LOGO ON FRONT