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post #61 of 725 (permalink) Old 2005-11-05, 02:17 AM
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Quote:
Originally Posted by open6l
went with a tower instead of chimney mount.. Hopefully this will withstand the winds AND get a better signal than before

http://photobucket.com/albums/b233/open6l/


Thanks for showing us your nice clear photos. So the cm4228 antenna and rotor bent that mast you had on the chimney. Now that you moved everything atop that tall tower I see you left the mast very long above the tower. What insurance do you have that this mast will not bend too? Being higher up there it will be subject to higher winds and think of snow and ice build-up in a winter storm... this could bend that mast again don't you think? I think the problem to start is the cm4228 is a heavy antenna weighing in at 16 pounds... plus the rotor motor weight ... that’s allot of pounds up there.

I would have kept the mast shorter like these guys did:
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post #62 of 725 (permalink) Old 2005-11-07, 12:28 AM
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Has it fallen down yet? Today's high winds are a good test!
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post #63 of 725 (permalink) Old 2005-11-07, 01:26 AM
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HDTV101 I know he has a nice 40' tower there is no need for his pole to be that long.

I bet with the winds we had today it was moving fairly well up there and as you said with some ice come winter may end up like he had before.

Hopefully he has reduced the pole to 3 to 4' where his rotor is attached.

CM4228/9521/7775;F.RmJvc70FH96/8300HDPvr/Dish 612;B.Rm LC52LE810UN/8642HD;Study LG50PK550/Xbox360;
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post #64 of 725 (permalink) Old 2005-11-07, 01:53 PM
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Open6l, you did some great work there and congratulations again! I agree about the pole length - that's too long for stability unless you used really solid EMT, but EMT's heavy and would affect the entire tower. I don't know how you could safely go up there and slide the CM4228 down so that you can hack saw the remainder off. Also I would mount the rotator inside the tapered end and bolt it into place there to lower the center of gravity up there and prolong the life of the rotator due to lower torque stress.
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post #65 of 725 (permalink) Old 2005-11-07, 03:16 PM
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open6l's tower photo

I resized the photo that HDTV101 had linked to so that it shows up better on smaller monitors. Did it show up okay, or is it too small now?
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File Type: jpg 27.jpg (27.2 KB, 2316 views)
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post #66 of 725 (permalink) Old 2005-11-07, 03:26 PM
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stampeder the smaller picture looks fine with the picture you can still see that the pole in relation to the antenna is too long.

Looks like he used a 6 or 7' from the tower.

He may not need to cut the pole why not just drop it all the way down so only 2 or 3 ' is being used ?

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post #67 of 725 (permalink) Old 2005-11-07, 03:29 PM
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That's a good idea, but it would be nice to eliminate as much weight from up there as possible. If its light antenna mast then that's not very heavy so lowering it should work.
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post #68 of 725 (permalink) Old 2005-11-07, 03:43 PM
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If its not resonable to remove abd cut down the pole, I would lower the pole and secure some type of bracket at the end so it does not move around freely.

This should make the pole more solid less stress on the top end where it is mounted through the tower.

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post #69 of 725 (permalink) Old 2005-11-07, 05:23 PM
 
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Talking

Man I wish I could get my stuff as high as some of you guys got. Budget won't allow right now plus am afraid of heights haha...

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post #70 of 725 (permalink) Old 2005-11-07, 06:18 PM
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Quote:
Originally Posted by Yaamon
I bet with the winds we had today it was moving fairly well up there
I have to agree with all that was said and see if you can't lower that mast. My installer used only what he had to from the top of the tower. I watched the movement in those strong gusts and the assembly seemed to be well balanced.

I haven't checked my unit since those high winds, but it may be necessary to run a synchronization on the rotator. I have my unit set for auto-sync, which aligns the antenna position after 50 moves, but man. those were strong winds yesterday.
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post #71 of 725 (permalink) Old 2005-11-07, 06:27 PM
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Quote:
Originally Posted by stampeder
Also I would mount the rotator inside the tapered end and bolt it into place there to lower the center of gravity up there and prolong the life of the rotator due to lower torque stress.
I notice that in the Owner's guide to the CM 9521A rotator kit, the suggested installation on page two for tower installation is as you suggested, Stampeder. The rotator is mounted inside the top of the tower, under the tapered end.
It also suggests that a mast of 1 1/4" is necessary for true rotation with this unit.
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post #72 of 725 (permalink) Old 2005-11-09, 09:04 PM
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Quote:
Originally Posted by open6l
hahahaha - actually she held up really well - no bend and i watched it in the wind - didn't sway as much as I thought it would.... still going strong for those of you wondering... the mast above the rotator is about 4'x1-1/4" and below the rotator it is about 5'x1-1/2".
Where abouts are you?
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post #73 of 725 (permalink) Old 2005-11-09, 11:24 PM
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60 ' tower and install for free!

Quote:
Originally Posted by tricky

Luckily the 60 ' tower and erection was free and will be used for wireless Internet, that was the reason for the tower, I figured I would kill two birds with one stone so to speak
How on Earth did you manage to get a tower like that for free? Please tell us how! What Internet Company is giving out free towers?
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post #74 of 725 (permalink) Old 2005-11-10, 11:38 AM
 
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Quote:
Originally Posted by HDTV101
How on Earth did you manage to get a tower like that for free? Please tell us how! What Internet Company is giving out free towers?
One has to be very lucky. A friend of mine takes these down on occasion from people who want them removed from their property. The gods shone on me one day and it appeared. A little digging, Red-E-Mix truck tire tracks across my 2 acre lawn\field $400 worth of Concrete and up she went. Like I said Lucky

here supervising the construction
http://albums.photo.epson.com/j/View...p=73171566&f=0

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post #75 of 725 (permalink) Old 2005-11-10, 05:17 PM
 
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Brampton West

Quote:
Originally Posted by HDTV101
Where abouts are you?
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