The 3498H-64 from KRATOS General Microwave is a RF Variable Attenuator with Frequency 6 to 18 GHz, Attenuation Range 64 dB, Attenuation Step 0.25 dB, Power 0.001 W, Insertion Loss 3 dB. Tags: Module with Connectors, Programmable, Digital. More details for 3498H-64 can be seen below.