This project is the original version of a digital VFO with analog dial display by Tj Lab(JF3HZB).

VFOsys       : fixed step tuning
VFOsys_astep : with adaptive step control

JF3HZB  T. Uebo
Tj Lab

https://tj-lab.org
https://tj-lab.org/2019/02/17/vfo5/
https://tj-lab.org/2019/02/27/vfo6/