The 50DR-141 Dual Concentric Rotary Attenuator from JFW Industries operates from DC to 3600 MHz. It has an attenuation range of 40 dB in 1 dB steps with an accuracy of 0.5 dB. This attenuator can handle up to 2 watts of average power and 1000 watts of peak power. It is available as a module with N or SMA connectors.