The QDA-1000-18000-63-1 from Qualwave is a RF Variable Attenuator with Frequency 1 to 18 GHz, Attenuation Range 0 to 63 dB, Attenuation Accuracy ±1 to ±2 dB, Power 0.3981 W, Insertion Loss 7.5 dB. Tags: Module with Connectors, Digital. More details for QDA-1000-18000-63-1 can be seen below.