The GPS250 from INSTOCK Wireless Components is a GNSS Splitters with Frequency 1 to 2 GHz, Input Power Splitter: 10 to 20 W (In-Phase), 0.5 to 20 W (Out-of-Phase), Combiner: 2 X 10 W (In-Phase), 2 X 0.25 W (Out-of-Phase), Insertion Loss 0.4 dB, Isolation 22 to 30 dB. Tags: Module With Connectors, Wilkinson. More details for GPS250 can be seen below.