It operated DC-6 GHz and can handle up to 20 Watts average input power as a splitter.
As a combiner it is rated for two 10 Watt signals. It has a resistive star configuration.
The star configuration results in equal loss through all paths. It functions like a 3 port RF hub.
All three devices connected to this 3 port hub will Tx/Rx each other at equal signal levels.