First day with my new RSPduo dual receiver - listening QSO on 40 m

Improvised antenna (Inverted 'V') on the roof, with trifilar coil as a BALUN and 75 Ohm coaxial cable. So far no proper 50 Ohm cable and no room for better antenna. EA5JZ making few QSO-s on 7.182 MHz. I bet he have good TX and good antenna, but other people I can't hear. At first I put wrong RX next to the spectrum, but later realized the mistake and put proper one. SDR RSPduo is excellent receiver, much better than cheap SDR dongle. Better signal to noise ratio. Okay, it is bit expensive, but that is the price of such excellent dual receiver.