5975-01-550-0748 SHELF,ELECTRICAL EQUIPMENT Index 6021-01-550-0750 SWITCH,FIBER OPTIC

National Stock Number:
5985-01-550-0749

Federal Supply Class:
5985

National Item Identification Number:
015500749

Description:
ATTENUATOR,VARIABLE

Detail:
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).


Manufacturer Information:
5038299899NARDA HOLDINGS, INC.


Techincal Specification:
APPLICATION DESIGNWAVEGUIDE
ATTENUATION PER STEP IN DECIBELS1.0
ATTENUATION VARIATION METHODSTEPPED
BODY MATERIALALUMINUM
BODY STYLEIRREGULAR
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.695 INCHES MINIMUM AND 2.705 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.095 INCHES MINIMUM AND 2.105 INCHES MAXIMUM
COAXIAL CONNECTOR SERIES DESIGNATIONSMA
FREQUENCY RANGE3.100 GIGAHERTZ MINIMUM AND 3.600 GIGAHERTZ MAXIMUM
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS5.0
MOUNTING FACILITY PATTERNFOUR POSITION RECTANGULAR
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE
OPERATING TEMP RANGE+0.0 TO 60.0 CELSIUS
OVERALL ATTENUATION ACCURACY IN DECIBELS-1.00 TO 1.00
OVERALL ATTENUATION RANGE IN DECIBELS+0.0 TO 80.0
OVERALL HEIGHT1.000 INCHES NOMINAL
OVERALL LENGTH3.000 INCHES NOMINAL
OVERALL WIDTH2.400 INCHES NOMINAL
SEGMENT ATTENUATION ACCURACY IN DECIBELS-0.50 TO 0.50 AND -0.75 TO 0.75 AND -1.00 TO 1.00
SEGMENT ATTENUATION RANGE IN DECIBELS+0.00 TO 30.00 AND +30.00 TO 60.00 AND +60.00 TO 80.00
STEP POSITION QUANTITY4
TERMINAL TYPE AND QUANTITY1 CONNECTOR, COAXIAL, FEMALE AND 1 CONNECTOR, COAXIAL, MALE AND 15 PIN
SPECIAL FEATURESTYPE DAMA15P D-SHAPED PIN CONNECTOR WITH M24308/26-1 SCREW ASSEMBLY; POWER SUPPLIES MINUS 15.0 VOLTS DC AT 225.0 MILLIAMPS, AND PLUS 5.0 VOLTS DC AT 400.0 MILLIAMPS; STORAGE TEMPERATURE MINUS 40.0 TO PLUS 68.0 DEGREES C; OPERATING 95.0 PERCENT RELATIVE HUMIDITY AT 60.0 DEGREES C. CONDENSING; OPERATING ALTITUDE UP TO 4570.0 METERS; RADAR 3D, E/F BAND, LONG RANGE; PART NAME ASSIGNED BY CONTROLLING AGENCY - MICROWAVE DIGITAL NON-REFLECTIVE ATTENUATOR; REFERENCE SPECIFICATION/OUTLINE DOCUMENT NUMBER 506188
UNTHREADED MOUNTING HOLE DIAMETER0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
VOLTAGE STANDING WAVE RATIO1.70


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