Abstract: A method of testing a design of a satellite payload transponder with modules of radio frequency (RF) communications circuitry includes executing a modeling application for establishing a modeling environment for generating a virtual satellite payload transponder and virtual test equipment. The virtual satellite payload transponder has virtual modules of RF communications circuitry, with functionality equivalent to that of the satellite payload transponder with modules of RF communications circuitry. The virtual test equipment has functionality equivalent to that of physical test equipment in conjunction with modular test system software. The modeling environment establishes an executable block diagram for performing a simulation of executed satellite payload transponder command, RF signal performance and telemetry response testing, utilizing a given version of the modular test system software corresponding to the modules of RF communications circuitry of the design of the satellite payload transponder.

Abstract: A method of testing a design of a satellite payload transponder with modules of radio frequency (RF) communications circuitry includes executing a modeling application for establishing a modeling environment for generating a virtual satellite payload transponder and virtual test equipment. The virtual satellite payload transponder has virtual modules of RF communications circuitry, with functionality equivalent to that of the satellite payload transponder with modules of RF communications circuitry. The virtual test equipment has functionality equivalent to that of physical test equipment in conjunction with modular test system software. The modeling environment establishes an executable block diagram for performing a simulation of executed satellite payload transponder command, RF signal performance and telemetry response testing, utilizing a given version of the modular test system software corresponding to the modules of RF communications circuitry of the design of the satellite payload transponder.

Abstract: A method of testing designs of wiring harnesses includes generating a virtual electrical system including virtual wiring harnesses that interconnect virtual modules of communications circuitry including signal sources and signal destinations. The method also includes testing signal pathways and thereby the virtual wiring harnesses. The testing includes generating a simulated signal that is input to a specific electrical connection at a signal source and routed through a signal pathway to a specific electrical connection to a signal destination. The testing includes verifying receipt of the simulated signal by the specific electrical connections via the signal pathway. And in an instance in which receipt is not verified, the testing includes identifying a particular electrical connection at which an error occurred in the receipt of the simulated signal, and a particular virtual wiring harness and a particular virtual module respectively connected to and including the particular electrical connection.