If you like to build a clone from the sdr-kits *Testboard*,
just use a FR4 veroboard 35 x 27 mm and solder 7 x 7 IC socket pins
and 2 SMA female plugs with a paper model, what you can get from
the web site
You need a few more IC socket pins for jumpers and samples to measure.
See the attached photos.
73, Rudi DL5FA