Sources Sought - Vector Network Analyzer Extender Head Drivers

head driver has some elements of VNA but it is not a VNA by itself. The extender head driver is only a VNA when combined with extender heads. As such it only has sources up 22 GHz (potentially up to 26.5 GHz). Q: "Can you please provide the model and serial number of the VDI modules so we can determ

ine compatibility with our VNA�s?" A: �The extender heads are VDI. They are WR6, WR5, and WR3 VDI extender heads. Exact serial numbers are not providable at this time because they have not been delivered.� National Institute of Standards an