The ABT-1801 from Actipass R&M is a Bias Tee with Frequency 1.7 to 2 GHz, Max. Voltage 27 VDC, Max Current 40 A, Insertion Loss 0.2 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connector. More details for ABT-1801 can be seen below.