[TowerTalk] SteppIR Wiring Problem

[Dennis Vernacchia]

...and remember to remove Power from the control unit if you have the older
type box pictured at the web site oix link I just sent
( I do not know about the newer control unit ) as power is still routed to
the
EHU motors even when *box switched off but plugged in*...otherwise you risk
blowing the motor drive chips if you short out any of the control wire leads
!!

Such a lovely design

73, Dennis N6KI



On Mon, Jul 20, 2009 at 8:39 PM, Jim Brown <jim at audiosystemsgroup.com>wrote:

> Crew,
>
> I just got my SteppIR up to 120 ft and it's giving my awful SWR
> readings. In troubleshooting, Using an ohmeter with the control cable
> disconnected from the controller, I'm reading open circuit on one of
> motors for the driven element. All other motors read normal (28 ohms
> from my controller), and they worked fine with that controller and
> that exact piece of cable at 20 ft. For further troubleshooting, I've
> broken the control line at the base of the tower, and the open is
> above that point. I suspect a broken wire or bad splice at the boom,
> but am wondering if there is a limit switch or any other form of
> protection that might have kicked in?
>
> 73,
>
> Jim K9YC
>
>
>
>
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