Now the DDS chip, DDS amplifier, and the frequency adjustment knob has been added.
So now my signal generator could finaly be used to test this reciever:
Stil no AGC yet, only +27db PRE amp, and +27db IF amp
-120dbm, about 0.22uV input => nice tone with some noice in my speaker :-)
So next steep will be another OP-amp in the AF amp, and create the AGC amp.
But first the PIC display and software...