The Rohde & Schwarz I/Q modulation generator AMIQ02 is alive again. I was able to save the OS and the old hard drive and clone it to a CF card.

The AMIQ can, among other things, quadrature amplitude modulation. It is controlled via WinIQSIM.

An interesting device! #hp8981A

A first attempt with 3D Vector Modulation on the HP 8981A Vector Modulation analyzer.

#hp8981a #hp8350b #hp8644a