Keysight 4437A Attenuator, DC - 1 MHz

The Keysight 4437A is an in-line reading variable attenuator usable from dc to 1.85MHz. The 4437A uses unbalanced-type pads and its input and output impedances are 600 ohms. This attenuator provides accurate 0.1dB steps of attenuation up t0 119.9dB giving excellent resolution for power-level measurements, transmission efficiency test and gain or loss measurements on filters and amplifers and similar equipment.