SeaLion Mission Architecture - ground station & flight software architecture for the joint CubeSat mission between Old Dominion University & Coast Guard Academy
Transmit/receive switch custom designed for the 401 MHz frequency band. This is connected to the software defined radio (SDR) and automatically switches the antenna from receive mode (default) to transmit mode when the SDR is switched from transmit to receive mode.
SDR is an Ettus USRP B200 or N200 which is connected to a host computer on which the transmit/receive software runs.
Host computer is a Dell Optiplex workstation running Ubuntu Linux operating system on which the GNU Radio software package is installed. The transmit/receive software that drives the SDR operation is set up using GNU Radio.