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## Rotor leads (comments)

 To: Rotor leads (comments) ke5fi@wt.net (Chuck Dietz) Tue, 10 Dec 1996 20:35:51 -0800
 ```k4sb@avana.net wrote: > > > I have a tower located 200' from the radio shack, the tower is 125' > > tall. My plans are to run the leads in conduit below ground and am > > wondering how well the rotor (TailTwister) will perform. By the time I > > get through running the lead for the rotor it will be approx. 350'. > > The lead I have is 2/12 gage and 6/14 gage. I'm hoping the voltage drop > > won't be that much but am not sure. Any suggestions? > > ------------------------------------------------------------------------------- > > Guys, I have clipped the id from the above. But as for suggestions???? > > 1. Has anyone ever heard of Ohms Law? > 2. The motor resistance of the Tail Twister is given in the manual. > 3. The ARRL handbook and almost any antenna book will give the resistance per > 1000 feet > of just about any wire size.( in this case ( 350' ) multiply it by .35 > 4. The voltage at the control box is known. > > Instead of "hoping" it will work, why not do your homework, and determine if > it will work or > not. This way, you KNOW what you are doing. You may also discover you have a > marginal > operation. > > And by the way, if you bury that cable in conduit, I will gurantee you'll > blow the rotor > motor,directional pot, control box, and the cable the first time you get a > near proximity > lightning strike. Unfortunately, I learned that one the hard way. I have concreted in 3 tower bases and am getting ready to stack tower soon. I had planned to bury rotor cable and hard line in conduit... Question #1: I understand ohm's law, but what about that will tell me how low a voltage the rotor will operate under? Question #2: What is there about burying the cables in conduit that makes it suseptable to lightning? Can I use PVC and be OK? Thanks! Chuck, KE5FI -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: K7LXC@contesting.com Sponsored by Akorn Access, Inc & KM9P ```
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