Part Details | VARIABLE ATTENUATOR
5985-00-009-7639 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: G128267001, G128-267-001, G128267001, G128-267-001, G128267001, G128-267-001, 5985-00-009-7639, 00-009-7639, 5985000097639, 000097639
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | AUG 09, 1972 | 00-009-7639 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
WAVEGUIDE TYPE
Cross Reference | NSN 5985-00-009-7639
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| G128-267-001 | 88818 | KEARFOTT CORPORATIONDBA KEARFOTT |
| G128-267-001 | 84347 | SINGER CO THE KEARFOTT DIV |
| G128-267-001 | 00443 | WAVELINE, INCORPORATED |
Technical Data | NSN 5985-00-009-7639
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 13.270 GIGAHERTZ MINIMUM AND 13.380 GIGAHERTZ MAXIMUM |
| VOLTAGE STANDING WAVE RATIO | 1.15 |
| POWER RATING | 400.0 MILLIWATTS AVERAGE |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.5 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P40.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M0.50/P0.50 |
| ATTENUATION ACCURACY REFERENCE FREQUENCY | 13.38 GIGAHERTZ |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | WAVEGUIDE TYPE |
| OVERALL LENGTH | 4.750 INCHES NOMINAL |
| OVERALL HEIGHT | 4.750 INCHES NOMINAL |
| OVERALL WIDTH | 3.536 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| SHAFT LENGTH | 0.820 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| WAVEGUIDE FLANGE DESIGNATION | UG-419/U |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 UNTHREADED HOLE |
| MOUNTING FACILITY PATTERN | THREE POSITION CIRCULAR |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.209 INCHES NOMINAL |
| BOLT CIRCLE DIAMETER | 4.375 INCHES NOMINAL |
| SCALE LINEARITY | LINEAR |
| SCALE DIVISION QUANTITY | 43 |
| OPERATING TEMP RANGE | +0.0 TO +71.0 DEG CELSIUS |
| WAVEGUIDE FLANGE TYPE | COVER |