The 50DR-143 from JFW Industries is a dual concentric rotary attenuator that operates from DC to 3000 MHz. It has an attenuation range of 0 to 80 dB with 1 dB Steps. This attenuator can handle 2 Watts of Average Power and 1000 Watts of Peak Power. It has an insertion loss of below 1.5 dB and a VSWR of 1.5:1. It is available in a connectorized module with N or SMA Type connectors.