[TowerTalk] Attaching to the side of a crank-up

Robert Harmon k6uj at pacbell.net
Thu Mar 24 21:17:21 PDT 2011


Jim,

I have a US Tower HDX-589 and also use their standoffs.  I like the 
idea of yours to use a 90 degree PVC sweep elbow on the top standoff.
May do this myself.
Do you have a picture showing this top standoff ?  What size elbow did 
you use ?


Mickey,
I found another provider of tower standoffs for info.
His standoffs use u-bolts for connection to the tower legs.
http://www.kf7p.com/KF7P/CoaxArms.html

Bob
K6UJ



On Mar 24, 2011, at 8:23 PM, Jim McDonald wrote:

> On my US Tower HDX-589 I use factory coax standoff arms, with a 90-degree
> PVC sweep on the top one arm to minimize strain from the weight of the
> hanging cables.
> 
> I use the US Tower inverted vee hanger just above the thrust bearing to
> support an inverted vee.  It mounts as a sleeve around the mast and is in
> the UST catalog.
> 
> I have used a short length of conduit attached to the top section with small
> U-bolts to hold another inverted vee.
> 
> I have a small aluminum bracket attached to the top of one leg of the top
> section to attach a half-sloper.
> 
> I also have a DX Engineering remote switch attached to another leg at the
> top of the top section.
> 
> It's essential, obviously, to be careful to keep the rotor loop of cables
> going to the mast from snagging in that stuff.
> 
> I took pictures from the ground with a telephoto lens recently if you want
> me to send you any.
> 
> Jim N7US
> 
> 
> 
> -----Original Message-----
> 
> I am finding it interesting to engineer a way way to attach things to a
> crank up tower. It looks like the cable standoffs are done with small U
> bolts. I'm considering having a light plate made to bolt to the outside of
> the face with pulleys.
> 
> How do you attach things (like wire antennae or standoffs) to your crank-up
> tower?
> 
> 73,
> 
> Mickey N4MB
> 
> 
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> 
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