An imperfect anemometer, or a Davis software bug?

I noticed that the wind direction on the VP2 console is able to show one step but not from 0 to 360 degrees.
From 5 degrees to 351 degrees, you can display 1 degree on the console.
The following units are then displayed.
355,360, and 5 degrees.
The remaining units do not work, and I wonder what the problem might be.
I use the 3.15 console version.
It is possible that there is a problem in the anemometer itself, I really do not know.

It is a “feature” of the hardware Davis use. There is a dead zone around the North position.

It’s an inevitable result of using a rotary potentiometer (pot) as the sensing element. There must be a small gap between the two ends of the track. The result still meets Davis wind direction spec of +/- 3 degrees.

I’ll do a new test this weekend and see if the dead zone is in the anemometer.