[Boatanchors] HRO tuning drive outer shaft

[Ian Wilson]

A list member emailed me to point out that the outer shaft turns
smoothly (i.e. is not meant to be fixed in place).

I can see now that the knob mechanism works, mostly. There are
places where the tens mechanism 'clicks' and becomes misaligned.

How on earth does this work? What needs to be done to overcome
the problem where it skips?

Amazing.

73, ian K3IMW