On 11/9/14, 12:53 AM, Roger (K8RI) on TT wrote:
On 11/9/2014 2:05 AM, Tod wrote:
My thoughts:
I've seen two distinct problems with the same results.
#1 is the vibration already discussed and
#2, is a short oscillation of the antenna system back and forth. It
takes very little wind. Just a light breeze for anything from a medium
size tri-bander and larg
Or, maybe we should push the manufacturers to go away from the legacy
potentiometer feedback pot?
There's all manner of inexpensive optical and/or hall effect encoders
are readily available now. And, they're potentially really, really
rugged (think of the crank position sensor in an automobile)
These days, it is trivial, if not cheaper, to have a microcontroller to
"close the loop" rather than relying on comparing two voltages and
driving relays.
I suppose, for all the popular inexpensive (cheap) rotors out there, the
development costs have long since been recovered, and as for many things
sold to hams, the volume isn't there to justify redesign. How many
*new* installations of rotors are there? (as opposed to replacements).
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