Артур, you can write on english.
My extrasensory abilities do not allow correctly define what kind of SDR are you using. What lind of SDR you are using?
HiQSDR miniV1? Looking on your picture i can suggest that you use right DSP - it is DSP V2, sheme of DSP coincides with sheme on rus-sdr.ru?
You decide the problem using connection on your picture?