Quality metal CoAx splitter (not crappy plastic…..) which not only makes it more robust but it also means it’s screened.
NOTE : Male input to two Female outputs. CoAx BtoBs are available to make it three Females if required, and it can matter which way this splitter is connected ! (at the bottom of the aerial report)
Through loss approx 4dB
Freq response VHF/UHF i.e. 5 to 860MHz