The PLUTO SDR has 2 ports (TX and RX). In my situation, in my laboratory I am only able to use one cable for both transmitting and receiving (i.e. it is going to be used for an antenna, and there is only one coax cable that goes to the roof). It is possible to do this, as this cable and set up can handle signals in both directions.
My question is:
Could I program the Pluto SDR to only use 1 port (either TX or RX) for transmitting and receiving?
If not, which port do I connect the cable to in the Pluto SDR (TX or RX), if this cable will be both transmitting and receiving? This cable will then be connected to a PA, then to bias-t, then to the antenna in the roof. Should I use a diplexer placed between the SDR and the PA? I am concerned because the frequencies are too close together (uplink: 437.5 MHZ, downlink: 437.45 MHz). Technically I don't need to separate them based on the frequency, and when receiving a signal, it does not matter if the signal goes to both the TX and RX, as only the RX will be active. Is the diplexer a good idea?
Thanks in advance.