5985-01-268-7907 ATTENUATOR,VARIABLE Index 5985-01-268-7909 ANTENNA GROUP

National Stock Number:
5985-01-268-7908

Federal Supply Class:
5985

National Item Identification Number:
012687908

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:
1310AS297630003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
ASMP-25-11K12457MERRIMAC INDUSTRIES INC


Techincal Specification:
ADJUSTMENT DEVICE TYPE AND QUANTITY1 SHAFT
APPLICATION DESIGNTRANSMISSION LINE
ATTENUATION VARIATION METHODCONTINUOUS
BODY MATERIALALUMINUM ALLOY
BODY STYLECOAXIAL TYPE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.585 INCHES MINIMUM AND 1.615 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.585 INCHES MINIMUM AND 1.615 INCHES MAXIMUM
COAXIAL CONNECTOR SERIES DESIGNATIONSMA
FREQUENCY RANGE7.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
IMPEDANCE RATING IN OHMS50.0 INPUT
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS0.7
OVERALL ATTENUATION RANGE IN DECIBELS+0.0 TO 20.0
OVERALL HEIGHT2.810 INCHES NOMINAL
OVERALL LENGTH2.570 INCHES MAXIMUM
OVERALL WIDTH0.530 INCHES MAXIMUM
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER0.086 INCHES
MOUNTING FACILITY PATTERNFOUR POSITION RECTANGULAR
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATORUNC
MOUNTING FACILITY TYPE AND QUANTITY4 THREADED HOLE
MOUNTING THREAD QUANTITY56 PER INCH
POWER RATING5.0 WATTS AVERAGE
SHAFT DIAMETER0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
SHAFT TYPEROUND, SLOTTED
SHAFT LENGTH0.825 INCHES MINIMUM AND 0.915 INCHES MAXIMUM
VOLTAGE STANDING WAVE RATIO1.50
TERMINAL TYPE AND QUANTITY2 CONNECTOR, COAXIAL, FEMALE


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