The 50R-400 from JFW Industries is a variable rotary attenuator that operates from DC to 8 GHz. It has an attenuation range from 0 to 9 dB with 1 dB increments. This attenuator has an insertion loss of less than 0.6 dB, can handle 2 W of average input power and peak power of up to 0.2 kW. The attenuator is available in a module with SMA (F) connectors.
