The minitrx+, like all of our devices, is a timecode over RF transceiver, and so can be set as either a master transmitting unit or slave receiving unit.
It can receive timecode in over BNC from an external device and then wirelessly retransmit that over RF to all receiving slave units in the workflow. It can’t however be set to both receive and transmit timecode wirelessly, at the same time.
Note add video link showing how to set up