The 355D, dc to 1000 MHz, manual step attenuator provides precision step attenuation in 10 dB steps from 0 to 120 dB. Attenuator sections are inserted and removed by cam-actuated microswitches which keep lead lengths short. This design minimizes stray capacitances and inductances, and keeps phase shift to a minimum. The Agilent 355D is a compact and rugged unit in which the component parts are rigidly positioned and well-shielded so that neither stray pickup nor signal leakage is a problem. It may be connected with the 355C in series to provide precision attenuation in 1 dB steps from 0 to 132 dB. Either terminal may be connected as input or output.
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