SI5351-Based VFO

This general purpose VFO is based on the SI5351 fractionally-N synthesizer. Unlike other designs based on SI5351, this board includes also a microcontroller that allows the user to modify the output frequency using a simple quadrature encoder. No additional hardware/firmware (i.e. Arduino boards) is necessary to operate this VFO.

Output frequency range : 2.4 MHz – 112 MHz, continuous coverage, no gaps

Frequency steps: 10Hz, 1KHz, 100KHz, selectable via switch

Number of output channels: 3, two outputs provide fixed frequency (option)