The 3853-10 B from ARRA Inc. is a RF Variable Attenuator with Frequency 1.5 to 2 GHz, Attenuation Range 10 dB, Attenuation Accuracy ±0.75 dB, Power 5 W, Peak Power 64.77 dBm. Tags: Module with Connectors, Continuously Variable, Rotary. More details for 3853-10 B can be seen below.