1. How to order this rotary encoder, what type is it, how to ask for it at the electroncis shop?

2. In the example, the step size is 1KHz. What configuration of switches and crystal must I choose, so that this step size can be decreased? I only need 200KHz for each HF band.

3. Can I just use the 1KHz step example and manually trim the 8.192Mhz crystal oscillator frequency with a capacitor, to fine tune the VCO? In that case, an estimation of the range of the fine tuning? Read more