| ELECTRICAL POWER SOURCE RELATIONSHIP | OPERATING |
| ENCLOSURE FEATURE | SINGLE ITEM W/CARRYING CASE |
| AC VOLTAGE RATING | 105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM |
| ACCESSORY COMPONENT QUANTITY | 8 |
| ACCESSORY CONTROLLING AGENCY | JETDS |
| ACCESSORY IDENTIFYING NUMBER | I-104/UP-12 TYPE NO. AND P+1227/UP-12 TYPE NO. AND UG153/U TYPE NO. AND CX3115/U TYPE NO. AND DA111/UP-12 TYPE NO. AND CX237/U TYPE NO. AND FR105/U TYPE NO. AND CG1446/U TYPE NO. |
| DEPARTURE FROM CITED DESIGNATOR | TYPE NO. AN/UPM12A |
| ENTRY DATE | 70-04-01 |
| FREQUENCY RATING | 50.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM |
| FUNCTIONAL CLASSIFICATION | AA-2.1 |
| FUNCTIONAL DESCRIPTION | GENERAL PURPOSE PORTABLE VOLTAGE STANDING WAVE RATIO INSTRUMENT. CONSISTS OF A SIGNAL GENERATOR,POWER SUPPLY,DUMMY LOAD AND A LINEAR AMPLIFIER WITH VOLTAGE STANDING WAVE RATIO INDICATOR. THE STANDING WAVE RATIO INDICATOR MEASURES THE REFLECTION COEFFICIENT BY MEASURING ATTENUATION THROUGH THE CONTAINED R-F BRIDGE BY MEANS OF A BUILT-IN CALIBRATOR. THE ATTENUATOR IS CALIBRATED BY USE OF THE DUMMY LOAD |
| HEIGHT | 10.0949 INCHES NOMINAL |
| LENGTH | 19.188 INCHES NOMINAL |
| MAJOR COMPONENTS | INDICATOR,STANDING WAVE RATIO; POWER SUPPLY; ADAPTER,WAVEGUIDE; CABLE ASSY,SPEC PURPOSE,ELEC; DUMMY LOAD,ELEC; CORD; WAVEMETER; WAVEGUIDEASSY |
| MATERIAL | ALUMINUM CARRYING CASE |
| PHASE | SINGLE |
| REFERENCE DATA AND LITERATURE | T.O. 33A1-3-87-11. 12. AND 14.; AND MIL-R-8724 |
| RELATIONSHIP TO SIMILAR EQUIPMENT | SIMILAR TO SPERRY MODEL 539 |
| WIDTH | 11.750 INCHES NOMINAL |
| TEST TYPE FOR WHICH DESIGNED | MEASUREMENT OF VOLTAGE STANDING WAVE RATIO |
| TYPE/MODEL DESIGNATION | AN/UPM-12A |