The AS-120 from RLC Electronics is a RF Variable Attenuator with Frequency DC to 1.5 GHz, Attenuation Range 0 to 101 dB, Attenuation Step 1 dB, Attenuation Accuracy .3 to .5 dB, Power 2 W. Tags: Module with Connectors, Rotary. More details for AS-120 can be seen below.