The AV-1922 from RLC Electronics is a RF Variable Attenuator with Frequency 1.9 to 2.2 GHz, Attenuation Range 20 dB, Power 5 W, P1dB 37 dBm, Insertion Loss 0.4 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for AV-1922 can be seen below.