For your Yuka Mini, using the RTK station would likely provide the best satellite signal accuracy, especially for precision applications. However, your decision should consider your specific environment - particularly tree coverage and surrounding obstructions. Dense canopy or tall buildings may necessitate the external antenna setup for reliable performance.

You might also want to explore the iNavi service, link below that explains in more detail, and eliminates the need for the RTK station all together. You will need a stable Wi-Fi or 4G service for this to work effectively.

https://easylawnmowing.co.uk/inavi-service-explained/

Thanks Mark