I made my first SDR receiver ZETA SDR for 40m. It work very good with my small loop antenna for 40m
2.Prijamnik LD-1a
After my first ZETA SDR for 40m I tested LD1-a SDR receiver from Lazy Dog eng.co. on several contest.
3.Prijamnik DR2A+
It was new challenge and what is important DR2A+ worked good and accurate. I worked on 80m with cristal