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## [TowerTalk] Fw: Fw: SteppIR problem

 To: [TowerTalk] Fw: Fw: SteppIR problem "Ron Todd" Mon, 11 Jun 2007 23:02:16 -0400
 ```Jerry they did have two types of cable. When I ordered my cable they asked me if I running more than 200 feet. WW4LL Fred used the larger cable and I am using the smaller cable. Ive seen them both. Your are correct about the 33v power supply. ----- Original Message ----- From: "Jerry Keller" To: "Ron Todd" ; Sent: Monday, June 11, 2007 10:49 PM Subject: Re: [TowerTalk] Fw: SteppIR problem > There is no "larger cable".... SteppIR does recommend the optional 33v > power > supply if the control cable will exceed 200 feet. > 73, Jerry K3BZ > ----- Original Message ----- > From: "Ron Todd" > To: > Sent: Monday, June 11, 2007 10:18 PM > Subject: [TowerTalk] Fw: SteppIR problem > > >> SteppIR says over 200 feet you need the larger cable and the 33V supply. >> >> >> ----- Original Message ----- >> From: >> To: >> Cc: >> Sent: Monday, June 11, 2007 10:12 PM >> Subject: Re: [TowerTalk] SteppIR problem >> >> >>> The discussion on this has been very interesting and informative. Most >>> feel >>> the cable length is the problem due to either excessive resistance or >>> capacitance. Larger wire would help if the problem was voltage loss, >>> but >>> what can you do if the problem is capacitance from the long run? I am >>> looking at the SteppIR website and I see only one size 12 conductor >>> cable >>> listed. It states that you need a 33 volt power supply for runs over >>> 200 >>> feet. They should really show a maximum cable length for using 33 >>> volts. >>> Perhaps with a 500 foot of their cable run you need even more voltage. >>> Are >>> you using a 33 volt supply? >>> >>> John KK9A >>> >>> >>> >>> >>> To: towertalk@contesting.com >>> Subject: [TowerTalk] SteppIR problem >>> From: Bill Carnett >>> Date: Sun, 10 Jun 2007 08:41:54 -0700 (PDT) >>> List-post: >>> >>> 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! >>> >>> >>> >>> 73, Bill >>> >>> _______________________________________________ >>> >>> >>> >>> _______________________________________________ >>> TowerTalk mailing list >>> TowerTalk@contesting.com >>> http://lists.contesting.com/mailman/listinfo/towertalk >>> >>> >> >> _______________________________________________ >> >> >> >> _______________________________________________ >> TowerTalk mailing list >> TowerTalk@contesting.com >> http://lists.contesting.com/mailman/listinfo/towertalk > > > _______________________________________________ > > > > _______________________________________________ > TowerTalk mailing list > TowerTalk@contesting.com > http://lists.contesting.com/mailman/listinfo/towertalk > > _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```
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