Hi,

Do you know if there is a raisonnable cost or even open source RF system
level simulator ? I mean a tool that allow someone to link boxes like
generators, mixers, filters, gain blocks, etc, all defined by their black
box parameters and simulate the system performances ? I know that high end
tools like ADS have no poblem with that but I was wondering if there is
something smaller, say just a little more powerful than the classic cascaded
gain IP3/p1dB/NF excel spreadsheets ?

Thanks,
Robert