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| Weinschel CORPORATION Model 3100-127 Precision Continuously Variable Attenuator SMA Connector dc to 2.0 GHz 2 Watts Features o Compact Size - Smallest available precision variable attenuator with 127 dB incremental range. Provides the OEM with new flexibility in designing compact instrumentation. o Continuously Variable - Attenuation is continuously variable between "minimum insertion loss (6 dB)" and 133 dB providing a 127 dB incremental range. o Rugged - Designed to meet many requirements of MIL-A-24215. POWER RATING: 2 watts average to 25C ambient temperature, derated linearly to 0 watts @ 85C. 500 watts peak (5 sec pulse width; 0.2% duty cycle) MAXIMUM STARTING TORQUE: 30 inch ounces POWER COEFFICIENT: <0.005 dB/dB/watt TEMPERATURE COEFFICIENT: < 0.001 dB/dB/ C TEMPERATURE RANGE: Operating: 0C to 85C Non-operating: -55C to 85C. CONNECTOR: SMA female connectors per MIL-STD-348 interface dimensions - mate nondestructively with MIL-C39012 connectors. CONSTRUCTION: Aluminum body and stainless steel connectors; gold plated beryllium copper contacts. Knob is included with each unit. WEIGHT: 247 g (8.75 oz) PHYSICAL DIMENSIONS: NOMINAL IMPEDANCE: 50 FREQUENCY RANGE: dc to 2.0 GHz INCREMENTAL ATTENUATION RANGE: 127 dB CHARACTERISTIC INSERTION LOSS, RESIDUAL: 6 + 0.5 dB CALIBRATION FREQUENCY/ACCURACY (including resetability): +0.5 dB or 1% whichever is greater. Test data is available at additional cost. FREQUENCY SENSITIVITY: + {0.015 x A x (F - Fd) + 0.5} or + {0.015 x A x (F - Fd) + 0.01 x A} A = Attenuation setting in dB, Fd = Dial cut frequency in GHz, F = Operation frequency in GHz Specifications DIRECT READING DIAL CALIBRATED AT: 1.0 GHz DIAL INCREMENTS: 2 dB increments from 6 to 130 dB plus 3 dB RESOLUTION OF DIAL: ~ 270 full scale (6 to 133 dB) LIFE: 50,000 Cycles (A cycle consists of a rotation from minimum to maximum and back to minimum). MAXIMUM SWR (Input & Output): Frequency (GHz) dc - 2.0 SWR 1.60 NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified. PHASE SHIFT WITH CHANGE IN ATTENUATION: ~ 1 per dB x f(GHz) 5305 Spectrum Drive, Frederick, MD 21703-7362 s TEL: 301-846-9222, 800-638-2048 s Fax: 301-846-9116 web: www.weinschel.com s email: sales@weinschel.com 105 5/25/99 |
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