I believe your best option would be an antenna switch. Using a splitter could cause problems getting your signal to the antenna.

---Michael

You guessed it,use an antenna switch.that way the other feed lies are isolated away from the coax that you are using and you have no loss of power from the rig,at least it will be minimized.be sure to match the switch to the rig in question,i have a 4 way just for that purpose,JACK

Mike, as NO6O stated in his answer, the best option is to use a coaxial switch. Only purchase and use a coaxial switch that will 'ground' the un-used positions. This will ensure the coaxial cable hooked to all of the switch positions are grounded if not being used. One of the best manufactured and constructed types for this, is the 2-postion or 4-position switches from the Alpha Delta Company. With this configuration you could have two to four different Transceivers connected to the different outputs from the switch each on their own seperate run of coax. Just ensure that only one transceiver is energized at one time. The Alpha Delta switches provide >60dB of isolation up to 30MHz between the used position and the un-used positions. Other companies that provide good switches are the Daiwa, Diamond and MFJ. Again ensure the un-used portions are grounded.

Your station equipment needs a 50 ohm circuit impedance to operate with the most efficiency to transfer the electromagnetic energy to and from it. So you do not want to use a M-358 ("T") adapter since this splits your RF Transmission / Reception coaxial cable feedline characteristic impedance from 50 ohms to 25 ohms.

K4RFE Larry