TV Fool  

Go Back   TV Fool > Over The Air Services > Help With Reception

Notices

Reply
 
Thread Tools
Old 11-Jul-2016, 2:20 PM   #1
Blackbeen
Member
 
Join Date: May 2012
Location: Toledo Ohio
Posts: 65
Strap Mount question

The sizes of chimney strap mounts all seem to be 12' or 18', pretty long,
can these be cut down to fit a smaller chimney, like this?
http://forum.tvfool.com/attachment.p...9&d=1466259687
Blackbeen is offline   Reply With Quote
Old 11-Jul-2016, 8:37 PM   #2
Stereocraig
Senior Member
 
Join Date: Sep 2012
Posts: 472
I have always been wary of mounting to a chimney,but that's just me.

They can be shortened w/ the clips where the straps fold over inside and are crimped.
Be sure to make your measurements w/ the bolts loosened as much as possible while still protruding all the way through the nuts.
Try to get the 3 corners bent in the correct spot and level on the first try before tightening.
Be sure not to over tighten to the point where the brackets start to bow.
Stereocraig is offline   Reply With Quote
Old 11-Jul-2016, 9:32 PM   #3
Blackbeen
Member
 
Join Date: May 2012
Location: Toledo Ohio
Posts: 65
Quote:
Originally Posted by Stereocraig View Post
I have always been wary of mounting to a chimney,but that's just me.

They can be shortened w/ the clips where the straps fold over inside and are crimped.
Be sure to make your measurements w/ the bolts loosened as much as possible while still protruding all the way through the nuts.
Try to get the 3 corners bent in the correct spot and level on the first try before tightening.
Be sure not to over tighten to the point where the brackets start to bow.
It's preferable to the only other viable option of attaching a tripod, which I actually already have, to the roof. The antennas are feather light I don't think a 10' stub mast on a 5' fixed + rotor will stress the chimney too much. I guess I will have to mess with it I don't really understand how the straps connect to the clips.

Last edited by Blackbeen; 11-Jul-2016 at 9:35 PM. Reason: typo
Blackbeen is offline   Reply With Quote
Old 11-Jul-2016, 9:58 PM   #4
Stereocraig
Senior Member
 
Join Date: Sep 2012
Posts: 472
They should be like a banding strap. Push through the clip, fold back over itself and secure w/ the two tabs.
I have not heard of many people having a problem w/ chimney mount, but once was enough for me.
Stereocraig is offline   Reply With Quote
Old 12-Jul-2016, 2:44 PM   #5
rickbb
Senior Member
 
Join Date: Dec 2014
Posts: 341
Biggest problem with a chimney mount is the chimney.

An old one with weak and deteriorated mortar can get blown over in a storm from the wind load on a big antenna setup.

As long as the chimney is in good shape should be fine.
rickbb is offline   Reply With Quote
Old 12-Jul-2016, 3:34 PM   #6
Stereocraig
Senior Member
 
Join Date: Sep 2012
Posts: 472
Another thing that just hit me, are the two lengths of pipe that you mentioned.
I would not use any lengths of pipe above the rotor, greater than needed for clearance.
Stereocraig is offline   Reply With Quote
Old 12-Jul-2016, 3:48 PM   #7
Blackbeen
Member
 
Join Date: May 2012
Location: Toledo Ohio
Posts: 65
Quote:
Originally Posted by Stereocraig View Post
Another thing that just hit me, are the two lengths of pipe that you mentioned.
I would not use any lengths of pipe above the rotor, greater than needed for clearance.
10' is within the suggested maximum length in the rotor manual, which is a few inches more, I would like to go higher for clearance but...

Last edited by Blackbeen; 12-Jul-2016 at 3:48 PM. Reason: add
Blackbeen is offline   Reply With Quote
Old 12-Jul-2016, 3:49 PM   #8
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,942
Keep the length of the stub mast above the rotor as short as you can, the bearings in the drive unit will live a lot longer. Elevate the whole drive unit instead.
__________________
Antennas Direct Tech Support

For support and recommendations regarding our products, please contact us directly at https://www.antennasdirect.com/customer-service.html

Sorry, I'm not a mod and cannot assist with your site registration.
ADTech is offline   Reply With Quote
Old 12-Jul-2016, 4:09 PM   #9
Blackbeen
Member
 
Join Date: May 2012
Location: Toledo Ohio
Posts: 65
Quote:
Originally Posted by ADTech View Post
Keep the length of the stub mast above the rotor as short as you can, the bearings in the drive unit will live a lot longer. Elevate the whole drive unit instead.
I could put the 10' bottom but its going to make it difficult to mount alone w/o falling off the roof, I'm only 5' 7", plus I'm planing on combining the HDB91X (top) DB4E below what should be the spacing?
Blackbeen is offline   Reply With Quote
Old 25-Jul-2016, 7:54 PM   #10
rickbb
Senior Member
 
Join Date: Dec 2014
Posts: 341
Just did a chimney mount on a 2 story house, my 32' ladder was barely tall enough.

Next one I do I'm going to rent one of those bucket lifts on a trailer. It's $150 for half day, but beats falling off the roof!
rickbb is offline   Reply With Quote
Reply

Bookmarks

Go Back   TV Fool > Over The Air Services > Help With Reception


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off




All times are GMT. The time now is 12:02 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © TV Fool, LLC