[AMRadio] Telescoping pole

[Brett gazdzinski]

I have used them a lot, pound a long iron pipe into
the ground, and use U bolts to hold the mast to the pipe.
Some sort of anchor to the side of the house and you are
good to go. I put a pulley at the top so it can
stay up.
They rust badly over time, and from a steady sideways load
assume a ( over time.

After 10 years it was still up but looking real nasty 
and I had rust stains on the side of the house.
It used to hold one end of the 80 meter dipole up,
and I took it all down and tossed it all in the trash.

I need to put up an 80 meter dipole, but will use trees
to hold it up.
I thought about something really thin and light to hold the center
of the 40 meter dipole up, but it would need to be real thin
else the xyl will have a fit...

Brett
N2DTS

  

> -----Original Message-----
> From: amradio-bounces at mailman.qth.net 
> [mailto:amradio-bounces at mailman.qth.net] On Behalf Of John Lawson
> Sent: Thursday, November 30, 2006 11:22 AM
> To: Discussion of AM Radio in the Amateur Service
> Subject: RE: [AMRadio] Telescoping pole
> 
> 
> 
> On Thu, 30 Nov 2006, Brett gazdzinski wrote:
> 
> > The only problem is it looks like hose clamps
> > hold it up. The old radio shack 36 foot mast
> > (same as lowes?) had bolts through it to hold it up.
> 
> 
> 
>     Some years back I purchased one of those (Winegard!) 
> telescoping masts 
> from Lowe's, to use at the QTH for my Comet VHF/UHF stick, as 
> well as a 
> place for my little weather station senders.
> 
>    I dug a 3' hole in the ground beside the house, filled it 
> with that 
> quick-setting fence-post concrete, and put a 1-1/2" piece of 
> threaded pipe 
> sticking up about 2' above ground.
> 
>    Once the Quickcrete set (I did this before lunch; had 
> lunch; it was 
> solid by the time lunch was thru) had set I used a standard 
> pipe coupling 
> (a 'threaded union') and another stub of pipe, threaded on 
> the union end, 
> about 15". Thus the mast is easily de-mountable with just a 
> pipe-wrench...
> 
>    I slit the butt-end of the Mast, and slipped it down over 
> the pipe stub, 
> then used a couple of stainless steel hose clamps to anchor it to the 
> pipe. [later I found I had to drill a 3/16 hole thru the 
> whole thing and 
> thread a bolt through it, to keep the wind from twisting it].
> 
>    I also used stainless pipe clamps at each of the sections, 
> rather than 
> the bolt/set-screw arrangement.
> 
>    Finally I clamped the mast to the eaves of the house using regular 
> electrical conduit 1/2-round clamps - a pair of them, fixed 
> to the eave 
> plates with 3" drywall screws.
> 
>    This rig has been up in the air four years now, and has been in 
> sustained winds of 70-80 MPH, and gusts of near 100 at times, 
> temps from 
> -10 to +110, rain snow, ice, ect.
> 
>    Not bad for well under $100, and only a couple of hours invested.
> 
> 
> 
> Cheers
> 
> John
> KB6SCO
> DM09fg
> 
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