Precision attenuation from dc to 1000 MHz is available with these Hewlett-Packard attenuators. Model 355C provides 0 to 12 dB in 1-dB steps and Model 355D provides 0 to 120 dB in 10-dB steps. Standard 355C’s and D’s are equipped with BNC connectors. Units can be coupled together with a standard UG-491A/U male-to-male BNC adapter.

Was this apparently simple product concept of using commercial microswitches up to 1000 MHz (HP 355C/D), a great innovation? The simple answer is that the HP 355 attenuator family stayed as a viable product for FORTY SIX YEARS.

The Keysight 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 HP 355C Manual Step Attenuator provides precision step attenuation in 1 dB steps from 0 to 12 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 355C is a precision manual Step Attenuator covering 0-12 dB in 1 dB steps. Frequency range is DC to 1 GHz. Standard connections are BNC (f) with TNC (f) or Type N (f) available optionally.

The Hewlett-Packard Model 355C, 355D, 355E, and 355F Attenuators are 50-ohm, coaxial step atten¬ uators usable from dc to 1 GHz. Models 355C and 355E provide 0 to 12 dB of attenuation in 1 dB steps. Models 355D and 355F provide 0 to 120 dB of at¬ tenuation in 10 dB steps. The 355C and 355D are manual attenuators. The 355E and 355F are pro¬

The Agilent / HP 355C is a DC to 1000 MHz manual step attenuator which provides precision step attenuation in 1dB steps from 0 to 12dB. The Agilent / HP standard 355C attenuator is equipped with BNC connectors. The 335C attenuator units can be coupled together with a standard male-to-male BNC adapter.

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The Agilent 355C 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 355D in series to provide precision attenuation in 1 dB steps from 0 …

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