The PE7439-10 from Pasternack is a Rotary Step Attenuator that operates from DC to 6 GHz. It provides an attenuation from 0 to 10 dB with a step size of 1 dB. This attenuator can handle an input power of up to 100 W and has an insertion loss of less than 1 dB. It is available in a brass module that measures 2.44 x 1.80 x 1.62 inches with SMA-female connectors.