3-dB coupler (90° Hybrid) can be used as:
Decoupled power splitter with a Ratio of 1:1
As a component to form combiners
As a frequency-independent 90 phase shifter
For the decoupled combining of two transmitter /receiver units whose integrate duplexers.
Attenuation 3 +/- 0.4 dB
Directivity > 30dB
Input power 500 W max
7-16, 50 Ω connectors
Intermodulation P:<-160 dBc
Buy coaxial combiners
Or contact the seller
in section "Combiners of TV-signal"