[OZ4]

Here's the MPX circuit all made up. I even used Kicad software to arrange the layout. It helped. 
   

Here's the I.F. thru the SDR radio with different software. When I tune the receiver I can see the limits of the I.F. filters.
It looks much better now. The new software works better. The MPX board didn't affect it. 
   


And here it is all a glow.
   
It's a slighty doctored pic. It's hard to get a good pic  the auto iris keeps bring up camera gain.