Hi Rkremer,
You will find this answer exactly the same as the one of the forum post, if there is anything other customers know about this, they will add it in that public forum as well.
You can use the C functions in your .NET environment to configure the signal analyzer and the signal generator. This C calls will do the IVI calls (not VISA) to both the digitizer, upconverter, downconverter and arb.
For RFSG there is a .NET wrapper to facilitate the programming in this environment. You can find this
wrapper in this link:
The wrapper for RFSA is not there yet, and therefore you will need to call directly C function calls.
Hope this helps,
Gerardo O.
RF SW Engineering R&D
National Instruments