Part Details | VARIABLE ATTENUATOR
5985-00-549-9630 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Alternate Parts: 21318101, 2131810-1, 60910, 5985-00-549-9630, 00-549-9630, 5985005499630, 005499630
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | NOV 11, 1974 | 00-549-9630 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
WAVEGUIDE TYPE
Cross Reference | NSN 5985-00-549-9630
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2131810-1 | 55974 | HONEYWELL INTL INCDEFENSE AVIONICS SYSTEMS |
| 60910 | 00443 | WAVELINE, INCORPORATED |
Technical Data | NSN 5985-00-549-9630
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 8.200 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM |
| VOLTAGE STANDING WAVE RATIO | 1.20 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.2/P10.0 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | WAVEGUIDE TYPE |
| OVERALL LENGTH | 2.500 INCHES NOMINAL |
| OVERALL HEIGHT | 1.625 INCHES NOMINAL |
| OVERALL WIDTH | 2.750 INCHES MINIMUM AND 3.000 INCHES MAXIMUM |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 KNOB |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| WAVEGUIDE FLANGE DESIGNATION | UG-136B/U |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 TERMINAL W/MOUNTING HOLES |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 1.280 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.220 INCHES NOMINAL |
| OPERATING TEMP RANGE | +0.0 TO +71.0 DEG CELSIUS |
| WAVEGUIDE FLANGE TYPE | CHOKE |