The QDAT5-0.7-3.7-31 from Qualink Microwave is a RF Variable Attenuator with Frequency 700 MHz to 3.7 GHz, Attenuation Range 31 dB, Attenuation Step 1 dB, Attenuation Accuracy 0.5 dB, Insertion Loss 4 dB. Tags: Module with Connectors, Digital. More details for QDAT5-0.7-3.7-31 can be seen below.