This radio looks to the computer like a Softrock and frequency is controlled using the i2c USB interface to the Si570 clock oscillator. It has I/Q audio out but much more convenient is the built-in USB audio device which can do up to 192kHz. The USB audio worked without any extra driver install.
While it's a kit, all the hard stuff is done for you and you're just left to solder a few connectors, plug in a transformer and construct the case. Here's how it comes.
It's a nice snug fit in the excellent quality metal case.
It worked on first power up and I'm using it with SDRSharp and other software without too much messing around. Here's a few videos showing how it looks tuning around 40m.
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