> Easier said than done. The controller uses a 25 pin connector. He would
> have to cut the cable and then solder up a connector.
The connector on the tower is not soldered. It is little screws that can be
tested right at the driven element.
But if he cannot climb the tower at the bottom of the tower will devide
problem in half.....
> I have a 300 ft run of cable in Colorado and have had no issues at all.
> I assume they use a better power supply than the 33v one that I have.
> again the box would have to account for that added voltage. I would be
> curious to know just how much or little voltage is at the motors.
> It might be worth it to unsolder the directors off the connector and see
> it works with 2 elements or unsolder all but the Driven.
> I know there have been a bunch of posts on this. I guess nobody tried
> running out the elements through the 500 ft of cable while on the ground?
> I assume the cable does not have any kinks or hard turns in it and all the
> motors have been tested for the proper readings?
> Mike W0MU
> -----Original Message-----
> From: email@example.com
> [mailto:firstname.lastname@example.org] On Behalf Of NPAlex@aol.com
> Sent: Sunday, June 10, 2007 10:34 PM
> To: email@example.com; firstname.lastname@example.org
> Subject: [TowerTalk] SteppIR problem
> Given that you have a 500 ft run, the first thing I would do is take the
> controller out to the base of the tower where the cable length is more
> typical and
> see if all works well then. If so, run heavier wire from the shack to the
> tower base and that should solve the problem.
> But you have to find out if the antenna and its motors/ controller work
> "locally" connected before just changing out parts.
> Norm W4QN
> In a message dated 6/10/2007 5:14:07 PM Eastern Daylight Time,
> email@example.com writes:
> Message-ID: <firstname.lastname@example.org>
> Content-Type: text/plain; charset=iso-8859-1
> Greetings to all Tower Talkers,
> A very wise man and fellow TT (K7LXC) suggested I post
> my challenge here to the group...maybe somebody will
> have a new idea that I've not explored.
> Last week we put up a new 4L SteppIR with a 40/30
> dipole. The antenna is approximately 500 feet from
> the shack. SteppIR control line is used, continously
> without any accessories inserted, running through 3
> inch conduit (not that that makes any difference).
> Prior to lifting it in the air I found that a problem
> existed. When attempts were made to change bands or
> even frequency on the same band, the control box went
> dead. Simultaneously, as the box died, the "on"
> indicator light on the pwr supply went out. A second
> later the pwr light came back on; the led "lights" on
> the control box flashed once but the box remained off.
> The box could be turned back on, but the same
> sequence occurred if a band/freq change was attempted.
> Immediately all of the wiring and continuity was
> checked with the antenna...all ok. Spoke with Jerry
> at SteppIR and we proceeded to change first control
> box....before I realized the pwr supply was
> faltering....no change.
> The next step was to attempt to run each motor
> individually and in groups. Each motor ran
> individually without problem. Adding the 2nd and 3rd
> motor caused no problems....the yagi functioned fine.
> The addition of the 4th motor (didn't matter which
> sequence), consistently killed the antenna. On
> occassion it would all seem to work for a couple of
> band changes but never more than 1 or 2 minutes - with
> all 4 motors running. So, with up to 3 motors
> running...all ok, with all 4, no go. However, this is
> a 4 element yagi. After speaking again with Jerry, I
> was reassured that the problem was simply a power
> supply and all will work fine....thus the long
> scheduled antenna raising event went forward as
> scheduled. Needless-to-say, the replacement power
> supply did not correct the problem.
> Prior to erecting the yagi I extended the elements to
> 14150 so it can be used as a monobander...but that
> will only bring temporary happiness. A power supply
> (3rd) was "hand picked" by the SteppIR engineers,
> sent, and tested this morning. Basically the same
> problem. It did seem to work briefly then shut
> down....exactly the same as before.
> So, I'm looking for ideas that have been overlooked.
> Yes, I should have listened to my gut, rather than the
> "experts" and canceled the raising until all problems
> were fixed, but that can't be undone. If this beast
> must be lowered, I'm a bit reluctant to put it back up
> after this experience. Yes, all antennas have
> problems but it would be less $$ to replace it at the
> time of lowering rather then taking down, bring the
> crane back and forth, etc.
> Sorry for the long-windedness of this but any and all
> thoughts are appreciated!
> ************************************** See what's free at
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