Cracking open the Adafruit Si5351 DDS Module
4/13/16: I want to build a handheld 6m/10m USB transceiver for ARES field work. The tolerances required for such a job even ten years ago would have made it too expensive to be worthwhile. The proliferation of cheap direct digital synthesis (DDS) modules, along with many Youtube videos demonstrating their use, now allows radio technicians of even basic skill the chance to put together a custom radio that really shines. I chose two different DDS modules to see which one gives better results: Adafruit's Si5351 DDS module, and Analog Devices' AD9351.