I had to take down a VERY HEAVY full-size DX Engineering 4-L 40m Yagi in
Colorado last week. Cheapest option was hiring a helicopter (at around
$500/hour) to pluck the Yagi from its 200 foot perch and lay it on the
ground. Total cost (including yanking another rather large Yagi from a
different 200 foot tower and the time for the helicopter to fly from
Montrose to Tiffany and back) was around $2k. A crane would have run me
well over $5k. If the helicopter had been based in Durango, 20 miles
away, total tab would have been under $1k.
Bill AA6TT
-----
William H. Hein, Restless Records, a Regency Enterprises company
1616 Vista Del Mar Avenue, Hollywood CA 90028-6420 U.S.A.
tel (213) 957-4357 fax (213) 957-4355 mob (213) 305-7157
http://www.restless.com billh@restless.com
> -----Original Message-----
> From: Dale Jones K5MM [SMTP:ddjones@nas.com]
> Sent: Thursday, April 30, 1998 1:20 PM
> To: towertalk@contesting.com
> Subject: [TowerTalk] Installing & de-Installing big Yagis
>
>
> To 'some' towertalky-uns ---(Those that are interested)
>
> The note below is an edited version of a private note that K6KM
> sent to me (K5MM) this morning. It refers to removing a 3-element
> Force 12 40 meter yagi from an 80+ foot Rohn 45 tower. (He lives
> on a very big hill)
>
> He and I had discussed the options available to remove that antenna
> from the tower. The antenna needed some work done to it, and Bill
> wanted to put this yagi on a different tower.
>
> Amongst the options considered were the high tramline, removing
> the driven element and 'wiggling' the remains down through the
> two sets of guy wires, removing all the guy wires from one side
> of the tower and dropping it down via a pulley rig, throwing the
> whole freaking thing down on the ground/guy wires and forgetting
> it, using dynamite, etc.
>
> I visited Bill over the weekend of WPX-SSB, and we had good
> intentions
> to get that antenna down. Intentions were defeated by other fish to
> fry, resting, sleeping, laziness, and no visible & easy solution for
> 2 old guys that came quickly to mind.
>
> That left him to do the work by himself. The solution below was a
> creation out of Bill's own brain......and as I've advised him, it
> must have come from some of the brilliance I've taught him over the
> years.......hee hee.
>
> Nevertheless, I felt the idea he came up with was pretty nifty,
> and that it ought to be shared with this reflector. No doubt others
> have thought of this over the years, and moreover we know our good
> buddy N4AR has done considerable work by himself on his own numerous
> towrs with big antennas: I just haven't seen much written about
> how to do this stuff by oneself.
>
> Read on, and any questions should be sent to:
>
> Bill Snider, K6KM
> k6km@cncnet.com
>
>
> 73 & GL
> Dale K5MM
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++
> >At 05:00 PM 4/29/98 K6KM wrote to K5MM
> >
> >At last!
> >
> >The 3 el 40 is completely on the ground, and the rotating
> >dipole is up in its place. I was too pooped to rig a balun and
> >feedline, then tune the dipole. Another day.
> >
> > A light bulb lit on Monday (regarding the 40 mtr beam on
> > the Rohn 45 tower with 2 sets of guy wires) and here's what
> > I did.
> >
> > I installed another guy bracket just one foot below the
> > top guy bracket on the Rohn 45 tower that has the 3-element 40
> > meter beam on it. I jury-rigged one (new) guy wire on the new
> > bracket, on the side of the tower where the antenna boom would
> > be lowered.
> >
> > Then I removed the original top guy, lowered the antenna down
> > to just above this new temporary temp guy, reinstalled the top
> > guy and removed the tempotary guy.
> >
> > Then I lowered the antenna to the lower guy position of the tower,
> > removed the lower guy, dropped the antenna a few feet and
> > re-installed the original lower guy.
> >
> > This required a pulley up on the tower mast, of course; the rigging
> > took an hour or two but the lowering only took about 45 minutes.
> > The fortunate issue here is that it is 'do-able' by one non
> > teenaged person. {ed. note: Bill celebrates 50 years of being
> > being legally on the air next year!!)
> >
> > I'm pooped and sore.
> >
> > 73 de Bill
>
> Not bad for an OF!!...k5mm
>
>
> --
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