Analog board

I was on holiday so I did not do much work on the project.

Currently I am working on the analog board. This board must scale the sweep signal according to the span setting (MHz/V).

I use TL-084 opamps to amplify/attenuate the sweep signal. The microcontroller sets the amplification. I made an inverting amplifier that uses selectable feedback ressistors. Those resistors can be selected by a voltage controlled switch (4016).
The PIC controls these switches.

The selectable resistors are potentiometer trimmers so I can allign the gain.