The FMAT8005 from Fairview Microwave is a programmable relay-controlled attenuator that operates from DC to 1.5 GHz. This 7-bit step attenuator provides an attenuation from 0 to 127 dB with 1 dB steps. Attenuation steps are 1, 2, 4, 8, 16, 32, and 64 dB. It has an insertion loss of less than 4 dB and can handle 1 W of average input power. This attenuator has a switching speed of 6 ms and requires a supply voltage of 12 volts. It is available in a module with SMA (F) connectors.
