Bill
It's a very long shot, but I would put a scope on one of the conductors at
the shack end of that cable and see if for any oddball reason you have
induced or ground loop conductive pickup from something. Did you try
flopping the new cable on top of the ground instead of pulling it through
the conduit? Of course if it's already in the conduit it may not be easy to
pull it back out. Can you try coiling up the 400' at the tower base and
connecting it to the 80' piece going up? If it won't run from a pile at the
bottom of the tower I am out of ideas. Maybe for some reason the controller
can't handle the conductor to sheath capacitance of that long a run.
73
Bob W2WG
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Ron Todd
Sent: Sunday, June 17, 2007 7:00 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Fw: SteppIR problem-update from the front lines
Bill sorry it did not work. I hope you dont give up on the SteppIR. Thire
has got to be a fix.
Ron K4WZ
----- Original Message -----
From: "Bill Carnett" <ah6fc@yahoo.com>
To: <towertalk@contesting.com>
Sent: Sunday, June 17, 2007 6:32 PM
Subject: [TowerTalk] SteppIR problem-update from the front lines
> Ok, Friday I received a new 440 foot control cable
> from Mike at SteppIR. In addition he prepared a 6
> volt DC battery pack to piggy-back on the 33 volt
> power supply for the controller.
>
> Neither worked. Unit comes on, then shuts off with
> band selection. Even tried going into set-up mode to
> individually select elements, same problem. Make the
> selection, and the entire unit shuts down. With a
> short control cable, i.e. 80 foot at the base of the
> tower, the unit works fine...full functioning.
>
> So, anybody have other suggestions? The problem seems
> to be related to the cable length. Increasing the
> controller voltage to the maximum 38 doesn't help.
> The SteppIR folks, Jerry, Jim, and Mike have been
> great, but we still can't figure out the problem.
>
> This is pretty frustrating. I want to give this
> antenna a good opportunity to get functional, but I'm
> not sure it will in my application, i.e. 500 feet from
> controller to antenna. It might be time to start
> looking for an alternative antenna?
>
> Again, thanks to all and any suggestions appreciated.
>
> 73, Bill
> AH6FC/7
>
>
>
>
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