Setup: Flex 6500, SDR ver1.3.0
I have noticed aliasing in the 40m band when there is a high-strength shortwave broadcast near. The issue is dependent upon the spectrum bandwidth I have selected. Curiously the problem occurs when the bandwidth is small. The first picture below is when I am zoomed-out on the band - no aliasing and the received audio is clean. Notice the strong out of band shortwave broadcasts. The second picture shows the aliasing problem when I have decreased the bandwidth by clicking on the +zoom button a couple of times. It becomes hard to discern the desired signals from the aliased shortwave signal and the aliased signal is very noticeable, err annoying, in the baseband audio.