Amazon.com: AITRIP 2 PCS Si5351A I2C 25MHZ I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator Signal Generator 8KHz to 160MHz 3-5VDC for Arduino : Industrial & Scientific
YO4HFU Website
YO4HFU Website
A universal VFO with an Si5351 clock generator – DK7IH QRP Engineering
Yup – It's Another Si5351 VFO – Dave Richards AA7EE