microwave transmitter

Inventory NumberRS0114

ClassificationTransmitter

Subject

Maker American

Cultural Region

Dimensions180 x 51 x 57 cm (70 7/8 x 20 1/16 x 22 7/16 in.)

Material

DescriptionThis microwave transmitter is made of a metallic dish antenna and a power source. The antenna can rotate. The "lightbulb" is the microwave source. There is a plaque on top of the instrument frame, but it is illegible from the picture.

Signedplate on back of dish: TYPE CRP-66AFK / ANTENNA ASSEMBLY / SERIAL 1055 / A UNIT OF MODEL SS0/S0a/S0-13 RADAR EQUIPMENT / MANUFACTURED FOR / NAVY DEPARTMENT - BUREAU PF SHIPS / BY CONTRACTOR / RAYTHEON MANUFACTURING COMPANY / WALTHAM MASSACHUSETTS / CONTRACT NXST-39239 stamped on side of 1 transformer: PLATE FILAMENT TRANSFORMER / RR. 115 V. 60 CYCLES / SEC. NO. 1-0625 V 1050 020 AMP. / SEC. NO. 2-26.3 V 4.5 AMP. / SEC. NO. 3-63 V 3.0 AMP. / SEC. NO. 4-2.5 V 2.5 AMP. / SEC. NO. 5-2.5 V 2.5 AMP. / CONTRACT NORD-7250 / SUB SIG. NO 1000A-128A / GENERAL (GE logo) ELECTRIC / CAT. 806208 / NO. 11438 stamped on side of 1 transformer: PULSE TRANSFORMER / TYPE LX-9202 / PRI 3.5 KV / MU SEC. / SEC. 15.5 KV / RATHEON MFG. CO. / WALTHAM, MASS. / 3815

Inscribedraised lettering on back: RM CO. / 3A2-X12 stamped on back: M1055 stamped on back: 5SF

FunctionThis transmitter emits microwaves that are reflected on a far away target. These microwaves then come back to their point of origin and are detected by a receiver. This is the basic concept of a radar.

An introduction to radar can be found on Wikipedia.