Take a look at https://www.wimo.com/dx-patrol-sdr-wide-band-receiver_e.html.  I recommend using CC- closed caption but you can see in the video that the I.F. is set to 40MHz. for up-convertion in the Select Radio >Definitions >Converter selection >Edit

Hallo all, first of all my excuses if this subject has already been covered somewhere else, but I could not find it. I have to say that, in spite of being a licensed OM since 1974, I have just started venturing into SDR. I have a Dx Patrol Mk 4 SDR that I want to use with SDR-Radio 3.0.10. The radio works well in VHF - UHF, but I don't seem to be able to make it work on HF. Dx Patrol gives very scant notices about this function, they only say that "To listen HF on options select Q- channel input.". I tried this with HDSDR and it works indeed. But how can I select Q-channel on SDR-Radio ? I looked at all menu items and I could not find it - maybe I overlooked something. Thanks in advance for your help - Francesco, PE1F