Monday, September 15, 2014

Some progress

Progress is slow on this one. Besides  did not update this blog regularly.

I did a few things though.
-If strip is working. But it needs some finishing touches, like using varicaps instead of trimmers for the band pass tuning.

-I found an enclosure for it. I bought it from a ham who was quitting the hobby.

-On  ebay I have found cheap AD9850 dds modules. I have bought a few. One of them will be used as synthesize for this project. I know that it is not ideal with respect to phase noise. I can add cleanup oscillators later.












I made a controller for this board using a PIC processor. Now I can generate signals between 0 and 40 MHz

A band pass filter is almost ready. I had top skip 160 meters as it did not fit in the filter enclosure (tin box).