The GPS330 from INSTOCK Wireless Components is a GNSS Splitters with Frequency 1 to 2 GHz, Input Power Splitter: 10 to 20 W (In-Phase), 1 to 20 W (Out-of-Phase), Combiner: 3 X 6.67 W (In-Phase), 3 X 0.33 W (Out-of-Phase), Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module With Connectors, Wilkinson. More details for GPS330 can be seen below.