| DOCUMENT IDENTIFICATION | NO. AN/SPS-21B |
| DOCUMENT TYPE | NOMENCLATURE CARD |
| ELECTRICAL POWER SOURCE RELATIONSHIP | OPERATING |
| AC VOLTAGE RATING | 115.0 VOLTS NOMINAL |
| ACCESSORY COMPONENT QUANTITY | 1 1ST COMPONENT |
| ACCESSORY COMPONENT QUANTITY | 1 4TH COMPONENT |
| ACCESSORY COMPONENT QUANTITY | 1 2ND COMPONENT |
| ACCESSORY COMPONENT QUANTITY | 1 3RD COMPONENT |
| ACCESSORY IDENTIFYING NUMBER | 3335 PART NO. 4TH COMPONENT |
| ACCESSORY CONTROLLING AGENCY | JCENS; RAYTHION MTG CO. ALL COMPONENTS |
| ACCESSORY IDENTIFYING NUMBER | C-1438B/SPS-21 PART NO. 2ND COMPONENT |
| ACCESSORY IDENTIFYING NUMBER | AS-710A/SPS-21 PART NO. 1ST COMPONENT |
| ACCESSORY IDENTIFYING NUMBER | RT-321A/SPS-21A PART NO. 3RD COMPONENT |
| COMPONENT DOCUMENT ORIGIN | GOVERNMENT |
| FURNISHED ITEMS | ANTENNA; CONTROL-INDICATOR; RECEIVER-TRANSMITTER,RADAR; INSTALLATION KIT,ELECTRONIC EQUIPMENT ALL COMPONENTS |
| FREQUENCY RATING | 60.0 HERTZ NOMINAL |
| JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ITEM NAME | RADAR SET |
| JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ITEM TYPE NUMBER | AN/SPS-21B |
| PHASE | SINGLE |
| RECEIVED SIGNAL FREQUENCY RATING | 5.55 GIGAHERTZ MINIMUM AND 5.60 GIGAHERTZ MAXIMUM |
| RECEIVER BAND QUANTITY | 1 |
| TRANSMITTED SIGNAL FREQUENCY RATING | 5.55 GIGAHERTZ MINIMUM AND 5.60 GIGAHERTZ MAXIMUM |
| TRANSMITTER BAND QUANTITY | 1 |