Jerry K3BZ, You could be correct, and the larger cable was due to more
wires in it. But I have the 3 ele and he has the 4 ele. Anyway, I stand
corrected.
----- Original Message -----
From: "Jerry Keller" <k3bz@arrl.net>
To: "Ron Todd" <ron@k4wz.com>
Sent: Monday, June 11, 2007 11:17 PM
Subject: Re: [TowerTalk] Fw: Fw: SteppIR problem
> There's actually 3 types of cable... there's a 4 conductor, 12-conductor,
> and 16-conductor. The 4 goes with the verts and the dipole. The 12 goes
> with the 2L & 3L. And the 16 goes with the 4L and MonstIR. All the
> cables use #22 AWG conductors, along with a shield and a ground drain. But
> your suggestion that there is a cable with heavier conductors is not
> correct.
> 73, Jerry K3BZ
> ----- Original Message -----
> From: "Ron Todd" <ron@k4wz.com>
> To: <towertalk@contesting.com>
> Sent: Monday, June 11, 2007 11:02 PM
> Subject: [TowerTalk] Fw: Fw: SteppIR problem
>
>
>> 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" <k3bz@arrl.net>
>> To: "Ron Todd" <ron@k4wz.com>; <towertalk@contesting.com>
>> 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" <ron@k4wz.com>
>>> To: <towertalk@contesting.com>
>>> 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: <john@kk9a.com>
>>>> To: <TOWERTALK@contesting.com>
>>>> Cc: <ah6fc@yahoo.com>
>>>> 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 <ah6fc@yahoo.com>
>>>>> Date: Sun, 10 Jun 2007 08:41:54 -0700 (PDT)
>>>>> List-post: <mailto:towertalk@contesting.com>
>>>>>
>>>>> 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
>
>
>
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|