The QDA-1000-2000-63-1 from Qualwave is a RF Variable Attenuator with Frequency 1 to 2 GHz, Attenuation Range 0 to 63 dB, Attenuation Accuracy 1.89 dB ( 3% ), Power 1 W, Insertion Loss 2.5 dB. Tags: Module with Connectors, Digital. More details for QDA-1000-2000-63-1 can be seen below.