One answer could be making one antenna do the work of two, as [Guido] did with this diplexer for dual APRS setups. Automatic Packet Reporting System is a packet radio system used by hams to ...

STMicroelectronics has revealed a new DIP2450 diplexer IC for connecting a Wi-Fi IC to a single antenna hence simplifying circuitry and saving pc-board space. It can also connect a Bluetooth IC to the ...