I have a 4 element SteppIR (MonstIR).
How do you set your controller to move 3 elements, and find that works and
then set it to activate the 4th element.
My controller activates all the elements that need to be tuned. I can
either select an individual element to tune it (Test mode), or in General or
Amateur mode get all the elements to tune at once. If I understand your
situation, your tuning 3 elements and then when activating the 4th the
controller shuts down. Are you disconnecting the four wires to the forth
----- Original Message -----
From: "Bill Carnett" <email@example.com>
Sent: Monday, June 18, 2007 9:23 AM
Subject: [TowerTalk] SteppIR problem-update from the front lines
> I don't want to continue to beat this thing to death,
> but all of you TT'ers have been a wealth of
> information. So, I wanted to reply to this most
> recent comment.
> 73, Bill
> wertalk wrote:
> (Doing engineering analysis from where I am sitting is
> very difficult,
> and you are down to that point. The part substitution
> method hasn't
> worked and there is only one part left that hasn't
> been substituted.
> (And I doubt that will solve the problem either.) Plus
> you didn't give
> us many details of your measurements other than you
> made them and they
> were OK. So everyone is just taking wild guesses. (I
> thought the water
> in the cable guess was pretty good.) Here are some
> questions. The
> answers to these would help a lot.
> 1. When you ohmed the lines to the motors what were
> the readings? Were
> they all very close to the same?
> Reply: Yes each circut was the same, about 34.6 ohms
> as I recall.
> 2. Did you check every line for resistance between
> each line and every
> other line and ground? Were they all open except for
> the mate for the
> one being tested?
> Reply: Yes, all were open, except the mate above,
> which were 34.6 ohms.
> 3. Is the DC ground for the power supply tied to
> station ground? Did
> you measure it?
> Reply: Not sure I can measure this (??). The station
> ground is an 8 foot rod approximately 5 feet from the
> unit. Connection is via a 4 ga solid wire and 2 inch
> ribbon to a SPG bulkhead plate. The house ground is
> via the AC circut, approximately 15 feet from shack
> and utlizes 2 - 8 foot ground rods approximately 8
> feet apart. BTW, building inspector told us we didn't
> need any of that lightening stuff "we don't require it
> any more." go figure?
> Note: This can be a difficult to measure, because
> there may be some
> small voltage on it.
> (This DC ground should not be connected to the tower
> ground at the
> If it is connected, remove the serial cable to the
> computer and
> re-measure it. If it is still connected, this may be
> a problem.
> 4. Are there any other devices connected to this
> cable such as
> transient suppressors or a tuning relay?
> Reply: no suppressors or other devices in the circut.
> tks again, bc
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