Towertalk
[Top] [All Lists]

Re: [TowerTalk] US Tower IV-16 Inverted V mount issues

To: james nail <james.nail@att.net>
Subject: Re: [TowerTalk] US Tower IV-16 Inverted V mount issues
From: Eric Dobrowansky K2WD <k2wd@comcast.net>
Date: Tue, 20 Jul 2010 15:57:45 +0000 (UTC)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>

I think the biggest problem with this design is the fact that the dipoles are 
pulling downward instead of horizontally, thus causing it to bind with the mast 
no matter how well lubricated it is.  



After further consideration, I have decided to abort using the IV16, and later 
this week I will lower the tower, climb up and unsnap the pully from it, and 
reattach the pulley to the upper tower section.   Then the next time I work on 
the yagi stack, I'll slide it off the mast. 



Thanks for all the replies. 

Eric 
K2CB 

----- Original Message ----- 
From: "Jim Nail" <james.nail@att.net> 
To: "Eric Dobrowansky K2WD" <k2wd@comcast.net>, 
towertalk-bounces@contesting.com, towertalk@contesting.com 
Sent: Tuesday, July 20, 2010 7:22:30 AM 
Subject: Re: [TowerTalk] US Tower IV-16 Inverted V mount issues 

Eric, I currently use this bracket on 72 ft tower. U used white lithium grease 
to line it and also I don't use as inv vee.I use as dipole support so I am not 
pulling down but instead straight out. 
Jim, WA2MBP 
Sent via BlackBerry by AT&T 

-----Original Message----- 
From: Eric Dobrowansky K2WD <k2wd@comcast.net> 
Sender: towertalk-bounces@contesting.com 
Date: Mon, 19 Jul 2010 21:12:58 
To: <towertalk@contesting.com> 
Subject: [TowerTalk] US Tower IV-16 Inverted V mount issues 





  Anyone using the US Tower IV-16 inverted V bracket?  



I have one installed here, and have already seen it spin around approx.  90-120 
degrees  while rotating the antenna stack, and it almost yanked my dipole to 
shreads.   



Has anyone experienced this, and solved it, by using some sort of lubricant 
between the mast and IV mount?   Maybe grease like that which is put into the 
thrust bearing via the fitting? Or some other sort of lubricant? 



Otherwise,    I think I will be lowering the tower and moving the dipole pulley 
off the IV16 and re-attaching it to one of the cross-members of the upper 
section.  I used that method on my last tower for years. Just need an extra 
hand to hold the ropes away from the tower face when raising or lowering the 
tower. But at least you can turn the antenna stack without the fear of tearing 
up the wire antennas.   Then, the next time I bring the tower horizontal, trash 
the darn IV-16..... 



Eric 

K2CB 
_______________________________________________ 



_______________________________________________ 
TowerTalk mailing list 
TowerTalk@contesting.com 
http://lists.contesting.com/mailman/listinfo/towertalk 


Thanks for all the replies. 

Eric 
K2CB 

----- Original Message ----- 
From: "Jim Nail" <james.nail@att.net> 
To: "Eric Dobrowansky K2WD" <k2wd@comcast.net>, 
towertalk-bounces@contesting.com, towertalk@contesting.com 
Sent: Tuesday, July 20, 2010 7:22:30 AM 
Subject: Re: [TowerTalk] US Tower IV-16 Inverted V mount issues 

Eric, I currently use this bracket on 72 ft tower. U used white lithium grease 
to line it and also I don't use as inv vee.I use as dipole support so I am not 
pulling down but instead straight out. 
Jim, WA2MBP 
Sent via BlackBerry by AT&T 

-----Original Message----- 
From: Eric Dobrowansky K2WD <k2wd@comcast.net> 
Sender: towertalk-bounces@contesting.com 
Date: Mon, 19 Jul 2010 21:12:58 
To: <towertalk@contesting.com> 
Subject: [TowerTalk] US Tower IV-16 Inverted V mount issues 





  Anyone using the US Tower IV-16 inverted V bracket?  



I have one installed here, and have already seen it spin around approx.  90-120 
degrees  while rotating the antenna stack, and it almost yanked my dipole to 
shreads.   



Has anyone experienced this, and solved it, by using some sort of lubricant 
between the mast and IV mount?   Maybe grease like that which is put into the 
thrust bearing via the fitting? Or some other sort of lubricant? 



Otherwise,    I think I will be lowering the tower and moving the dipole pulley 
off the IV16 and re-attaching it to one of the cross-members of the upper 
section.  I used that method on my last tower for years. Just need an extra 
hand to hold the ropes away from the tower face when raising or lowering the 
tower. But at least you can turn the antenna stack without the fear of tearing 
up the wire antennas.   Then, the next time I bring the tower horizontal, trash 
the darn IV-16..... 



Eric 

K2CB 
_______________________________________________ 



_______________________________________________ 
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
<Prev in Thread] Current Thread [Next in Thread>