The 4843-15 A from ARRA Inc. is a RF Variable Attenuator with Frequency 2 to 2.1 GHz, Attenuation Range 15 dB, Attenuation Accuracy ±0.2 dB, Power 5 W, Peak Power 64.77 dBm. Tags: Module with Connectors, Continuously Variable, Rotary. More details for 4843-15 A can be seen below.