[TowerTalk] Channel master operation?

[K8RI on TT]

On 9/20/2011 6:21 PM, Jim Miller wrote:
> I've got a Channel Master to rotate my Hexbeam. It has only three wires that
> control it. Anyone know how this functions to turn and indicate direction
> with only three wires?

fIf it's like the one I used to have, oh so many years ago, there is no 
connection between the rotator and direction indicator except for 
power.  Once aligned or "zeroed" they step in sync.  IE the rotator 
makes a step in one direction and the direction indicator does as well.  
It pays to make sure the antenna is pointed the same direction the 
indicator says.


73

Roger (K8RI)

>
> It has a wallwart that provides power to the control unit that is 18VAC
> output. Any idea of the signal levels on the lines? I was going to buy some
> TVS diodes for protection but want to make sure I get ones with proper
> breakdown voltage.
>
> I can always tear it down myself and scope it out but it would be nice to
> avoid if someone had already done so.
>
> Thanks!
>
> Jim ab3cv
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>