The RFDAT0106M4R from RF-Lambda is a RF Variable Attenuator with Frequency 100 to 600 MHz, Attenuation Range 60 dB, Attenuation Step 4 dB, Attenuation Accuracy 1.5 dB, Power 1 W. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for RFDAT0106M4R can be seen below.