[Antennas] Re: Raising Multisection Verticals [was: Remote
control - with voice access]
Chris BONDE
[email protected]
Fri, 04 Jan 2002 21:37:52 -0800
I like these ideas!! Will file them.
Lets explore the rope one a little further. I think that there is
something like that called pre-stressing. That is if the rope is under
tension, pulling the two end together. This should slow down any flexing
motion. Any mechanical engineers around.
Chris opr VE7HCB
At 11:20 AM 2002-01-04 -0500, you wrote:
>I imagine that a heavy length of rope fed lengthwise down all of
>the tubing would provide strength to prevent excessive bending
>during the raising and lowering of it -- plus will soak-up vibration
>from the wind once in place.
>
>Another possibility, if it is to be a semi-permanent vertical, one
>could fill it with that foam stuff that comes in a can ... if one could
>keep the sections from popping apart from the pressure until it cures!
>
>73, Doc KD4E
>
> > Don't forget to mount yard arms, pulleys and lines before you raise the
>tower,
> > assuming you are going to simply tilt it up. A 10 foot mast section
>mounted
> > sideways works nice for playing with wire antennas!
> > Rudy Marcelletti, K8SWD
>
>
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