General Information

Serial #

4339

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CARDBOARD CASING/ SYNTHETIC & METAL WORKING PARTS/FABRIC STRAP WITH METAL RING

Dimensions

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

Length

28.3 cm

Width

12.0 cm

Height

23.8 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

Unknown

Period

C. 1959

Canada

AN AMERICAN MADE AUDIO-MODULATED RADIOSONDE MADE FOR THE CANADIAN METEOROLOGICALSERVICE, USED CONCURRENTLY WITH THE LATER CANADIAN TIME-CYCLE RADIOSONDES.

Function

DEVICE LIFTED BY BALLOON INTO UPPER ATMOSPHERE TO MEASURE TEMPERATURE,HUMIDITY, & AIR PRESSURE & TRANSMIT DATA TO EARTH. WIND SPEED & DIRECTION CAN BE DETERMINED BY TRACKING RADIOSONDE.

Technical

A 1950'S-EARLY 1960'S STYLE OF RADIOSONDE CONTROLLED BY A BAROSWITCH, WHICH HAS AN ANEROID SENSOR & ALSO SWITCHES IN THE CERAMIC RODTHERMISTOR (TEMPERATURE SENSOR) & ELECTROLYTIC PLASTIC STRIP HUMIDITY SENSOR, &REFERENCE RESISTORS. THESE ELEMENTS ARE HOUSED WITHIN A VENTED & SHIELDED (INSULATED) CARDBOARD CASING.

Area Notes

Unknown

Details

Markings

BLUE LETTERING ON FRONT READING 'RAY SONDE/ Bendix/ MODEL NO. 288-1/ FRIEZ INSTRUMENT DIVISION/ BENDIX AVIATION CORPORATION/ BALTIMORE, MARYLAND' & ON SIDE 'RADIOSONDE/ PROPERTY OF THE METEOROLOGICAL DIVISION/ DEPARTMENT OF TRANSPORT/ CANADA'/ BAROSWITCH FRAME STAMPED '10846'/ INSIDE OF FLAP STAMPED 'MAY 23 1959/ ACCEPTED'/ EXTERIOR STAMPED '4339'/ HYGRISTOR CAN IMPRESSION STAMPED 'JUL 13 59'

Missing

BATTERY From CA of 10/25/1993 by Tony Missio: Undetermined

Finish

WHITE CARDBOARD & STRAP/ MULTICOLOURED SYNTHETIC

Decoration

N/A