Downloaded your latest preview. As a receiver it is fantastic. I have an ANAN 10E running new protocol, GT 730 video card with 2 gig memory and DDR5 memory.
I have tried every sample rate and it just works. Average CPU at the highest sample rate of 1,536,000 is 12 percent. Average GPU is 21 percent.
... I like the waterfall setup with separate scope for receive ant transmit, even though transmit is not available yet. The other feature I see that I really prefer is the multi meter that shows four measures.
Now it's gonna be really difficult to wait till transmit is enabled.