The attached pdf describes a project I've been working on to create a 0-2 GHz frequency extender for the KiwiSDR. This is in an early phase, it is NOT in mass production nor available for sale. It should be considered vaporware in this regard. I'm showing it now to indicate what is possible. It is capable of providing WSPR operation on all amateur bands up through 23 cm. Whether this project will progress beyond working hardware and software probably depends on someone else eventually becoming involved.
