The QDPS6-2.9-3.9 from Qualink Microwave is a Digital Phase Shifter with Frequency 2.9 to 3.9 GHz, Phase_Shift 360 Degrees, Phase Step 5.625 Degree, Power dBm 31 dBm, Power W 1.26 W. Tags: Module with Connectors. More details for QDPS6-2.9-3.9 can be seen below.