Dave
I have done a full sized 3 EL 40 more than once.
You have 2 choices, tram and crane.
The Tram works very well if you have the space to set it up. You'll need
at least space to run the tram line from the top of the gyn pole in both
directions at least 100ft (or more) in each direction.
Ensuring that that antenna keeps its proper flat orientation is a science
in rope. :) You have to also be able to untie it when your are up there.
Crane.. is the best choice. It now becomes an hour job at most. It is the
safest for people and antenna and is well worth the expense.
I would not consider sliding it up the guy wires. I have done that and it
does eventually flip over (ask me how I know). :)
What you can do is go talk to the owner of a crane company for a cash
Saturday job. That what I have done. You may find out it isn't that
expensive.
Mike va3mw
On Thu, Jun 16, 2016 at 10:51 AM, Dave Leisman <w8qwdave@casair.net> wrote:
>
>
>
> I have one of these beast that I have resurrected and am ready to put on
> top of a 70' Rohn 45 tower. The tower is properly guyed and
> steady as a rock. My question though is how to get the antenna from the
> ground to the top of the tower.
>
> At Dayton this past spring I bought the ARRL's book on towers and antennas
> and have been reading about "tramming" the antenna to the
> top and then placing it accordingly. That seems attractive but this is a
> very heavy antenna and my concern is the strength of the
> mast to hold the rope tight while the antenna is making its way to the top.
>
> My understanding is that in the "tramming" method the antenna is carried
> to the top by a sling (more or less)and then put in place
> once it reaches the top.
>
> The other method involves sliding the antenna up two ropes spaced apart at
> the bottom of the tower, beyond the guys wires. This
> sounds good but there are phasing tubes on the underside of the TH_11 that
> could be (most likely would be) damaged in this method.
>
> I've thought abut paying a guy to bring in his crane (lots of height and
> lifting capacity), but that's another cost that I'd like to
> avoid if at all possible.
>
> So, I'm open to suggestion and the wisdom of the group's experience.
>
> Thanks in advance.
>
> Dave, W8QW
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