| Author |
Message |
    
john iona jr (Unregistered Guest)
Unregistered guest
| | Posted on Wednesday, April 14, 2004 - 5:28 pm: | 
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can anyne tell what type of rotor it take to turn a white lightnimng from signal engineering i one that came from radio shack |
Lowpowerhal
Intermediate Member
Username: Lowpowerhal
Post Number: 198
Registered: 7-2003
| | Posted on Wednesday, April 14, 2004 - 7:38 pm: |
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john iona jr The White lighting will take a good rotor, And i doint think radio shack has the one that will work. The rotor you have to have needs a brake in it for wind load. There are some good rotors on the market. The person that can give you the best info is Tech 808 i belive he has one , be patience he has a lot of post to go though , he will get back to you. |
The ELCO guy (Unregistered Guest)
Unregistered guest
| | Posted on Wednesday, April 14, 2004 - 10:24 pm: |
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Given the specs on the above link Radio Shack cannot help you at all.
You will need at the least a Ham IV. The above Low is correct in that you will very definately need a good fairly heavy bell rotor with a good breaking system.
I also strongly suggest that you do not use a telescopic pole either. Use a tower with a thrust bearing and plate on the top with a Ham IV inside the tower.
Big antennas require strong secure support. |
Tech808
Moderator
Username: Tech808
Post Number: 2140
Registered: 8-2002
| | Posted on Wednesday, April 14, 2004 - 10:50 pm: |
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John,
While Anthony at SE will say you can use a Small rotor I personally would recommend a Larger Rotor.
The Boom length is 15' 2" and Weight is Only 20lbs with a wind load of 3.8 Sq. Ft.
I use an Aliance HD73 Rotor on my SE White Lightning Beam's and when the wind has been upwards of 60-70mph it will Rock & Roll.
You need a GOOD ROTOR with a GOOD BRAKE and always try and Keep them facing into the wind.
The Small Rotor can get you by but it will be major problem's in the Wind.
While it is NOT a Large Antenna and is Very Light for Beam's a good Rotor will save you a Lot of Headaches in the Future.
Hope this help's.
Lon
Tech808
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Ca346
Advanced Member
Username: Ca346
Post Number: 690
Registered: 8-2003
| | Posted on Wednesday, April 14, 2004 - 10:57 pm: |
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I agree with all of the above. (Hows that for politics?) I own the Lightning 4+ from SE and it's on an 18ft boom and the 4 elements have 14ft spreaders. Its NOT the weight (20#) of the antenna, as said above, its the wind load and torque on the rotor. I use a Yaesu 800dx in a 50ft tower. It's worth the trouble.
Tech808 has the same antenna also... |
Wrk3
New member
Username: Wrk3
Post Number: 3
Registered: 4-2004
| | Posted on Thursday, April 15, 2004 - 9:26 am: |
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i've got the same antenna with a "Yeasu-450-a". and no thrustbearing on the tower, works 4 me |
Pig040
Intermediate Member
Username: Pig040
Post Number: 378
Registered: 7-2003
| | Posted on Thursday, April 15, 2004 - 9:48 am: |
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I bought a nice rotor (CDE) from e-bay, has a brake and all that completley rebuilt, looks like new, lots of ball bearings, got a good deal, take a look, see what E-Bay has to offer, you dont have to break the bank, but you are gonna pay 50-60 bucks for a thrust bearing, use one, lots of people dont, and it makes a huge difference on stress on the rotor! |
Tech808
Moderator
Username: Tech808
Post Number: 2155
Registered: 8-2002
| | Posted on Friday, April 16, 2004 - 7:00 am: |
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I use the Thrust Bearing for one simple reason.
All of my mast pipe is Bolted together and then I have the Thrust bearing Tightened to the Mast pipe.
My Rotor is at Roof Level and has 1/2 inch from bottom of mast pipe to the top of the rotor base.
This allows me to unbolt the 4 bolts on the Rotor Neck and remove the Rotor Base for any work that might need to be done.
Without having to Raise the Antenna or climbing to the top to work on it.
This last winter I had a wire go bad on my rotor.
I was able to unbolt the base and replace it with my spare in less than 15 minute's. And there is NO WEIGHT -0- Setting on the ROTOR.
The 50-60 bucks for a Thrust Bearing is well worth NOT having the weight of 70+ Feet of 2 1/2" Mast pipe with Black Gas Pipe inside of the mast pipe at top for strength and the weight of the antenna sitting on the rotor.
And by having the rotor at roof level there is No Need to make a long climb if problem's occur. I can sit on edge of roof and do any repair's needed.
Your rotor will last MUCH longer if you keep the weight off of it and use it only for turning your setup.
Lon
Tech808 |
Rattlesnakejake
Intermediate Member
Username: Rattlesnakejake
Post Number: 120
Registered: 12-2003
| | Posted on Friday, April 16, 2004 - 12:29 pm: |
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COuld we get a link to a website where they sell a rotor for the SE brand new?
RSJ |
Stealman
New member
Username: Stealman
Post Number: 8
Registered: 12-2003
| | Posted on Friday, April 16, 2004 - 2:34 pm: |
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do anyone know were can i fine a thrust bearing |
Ca346
Advanced Member
Username: Ca346
Post Number: 694
Registered: 8-2003
| | Posted on Friday, April 16, 2004 - 4:07 pm: |
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This site has both:
aesham.com
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Tech808
Moderator
Username: Tech808
Post Number: 2160
Registered: 8-2002
| | Posted on Friday, April 16, 2004 - 4:07 pm: |
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Rattlesnakejake,
GO to your Search Bar and type in:
"Antenna Rotor"
I just did it and it brought up OVER 35,400 hits.
Lon
Tech808 |
Tech808
Moderator
Username: Tech808
Post Number: 2161
Registered: 8-2002
| | Posted on Friday, April 16, 2004 - 4:19 pm: |
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Stealman,
Try this place below, If they do not have one they can probabley direct you to one.
Radio Systems
1230 Furnace Brook Parkway
Quincy, MA 02169
Or look in your phone Book for Radio Equipment, Tower's, Radio Tower's or Check for Ham's in your area and one of them can help you.
Just look for a Bunch of Ham Antennas and stop and ask.
Hope this Help's
Lon
Tech808 |
Dx431
Advanced Member
Username: Dx431
Post Number: 847
Registered: 2-2002
| | Posted on Friday, April 16, 2004 - 4:43 pm: |
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texastowers.com
Click on the drop down menu on the right and select Rohn.You can find everything you need right there. |
Stealman
New member
Username: Stealman
Post Number: 9
Registered: 12-2003
| | Posted on Friday, April 16, 2004 - 9:26 pm: |
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THANK YOU FOR INFO |
Cm3885
Intermediate Member
Username: Cm3885
Post Number: 350
Registered: 12-2003
| | Posted on Friday, April 16, 2004 - 10:43 pm: |
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I run a ham 4 up in my 40' tower to turn my 'rakers and its been up there since 1995. I use 2 bearings (old John Deere planter bearings) no problems unless its really cold out then it acts kinda goofy at times... Will turn one way but wont return to the original setting.. This is only when its really cold out... |
Ca346
Advanced Member
Username: Ca346
Post Number: 708
Registered: 8-2003
| | Posted on Saturday, April 17, 2004 - 1:20 pm: |
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CM3885:
I get the same way when I'm cold.... |
