telescoping poles

[Jeremiah McCarthy]

A good base for a portable antenna using telescoping poles is a surf fisherman's sand spike...It is a tube with a spike on one end that one inserts into the sand to hold an unattended fishing pole upright...Google it...

>I have been very pleased with my MFJ 33' mast. Easy to setup and takedown.
Still looking for a light and secure base for it.<

Jerry, wa2dkg
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[Martin Gillen-2]

Hi, Jerry et al,

> It is a tube with a spike on one end

Or homebrew your own sand spike like I did.  1 or 2 feet of 3/4" PVC
pipe, an pipe end, 3 stainless steel rods and a couple of jubilee
clips (hose clamps).

Attach the pipe end piece to the pipe.  It is probably slightly
thicker than the pipe.

Drill 3 notches in the pipe end which will guide the 3 steel rods and
keep them equidistant around the pipe, and secure with the jubilee
clips, one around the end piece, one in the middle and one near the
top.

http://www.sunim.plus.com/maple/images/martin_op.jpg

http://www.sunim.plus.com/maple/images/naqccsprint_work.jpg

73
Martin.
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[Vic K2VCO]

Martin Gillen wrote:

> Or homebrew your own sand spike like I did.  1 or 2 feet of 3/4" PVC
> pipe, an pipe end, 3 stainless steel rods and a couple of jubilee
> clips (hose clamps).

I made one simply by drilling a hole in the center of a PVC pipe cap and
putting a long bolt (about 4 inches -- 10 cm) through it.  Then I ground
a point on the end of the bolt.  Of course the pole has to be guyed as well.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[Martin Gillen-2]

Hi, Vic.

> Of course the pole has to be guyed as well.

I should have mentioned that using the short pipe with 3 steel rods
(about 1 foot each
extends into the ground), there is enough stability to support a 20
foot fiberglass fishing pole and a #26AWG 88ft dipole fed with radio
shack twinlead without any guying, in low or moderate wind conditions.

Of course the ends of the dipole act as guys to some extent.

I use 6ft tall fiberglass driveway markers for my inverted vee ends.

Views of the whole antenna:

http://www.sunim.plus.com/maple/images/martin_ant.jpg

http://www.sunim.plus.com/maple/images/naqccsprint_pole.jpg

- Martin.


--------------------------------------------
Martin Gillen wrote:


    Or homebrew your own sand spike like I did.  1 or 2 feet of 3/4" PVC
    pipe, an pipe end, 3 stainless steel rods and a couple of jubilee
    clips (hose clamps).

I made one simply by drilling a hole in the center of a PVC pipe cap
and putting a long bolt (about 4 inches -- 10 cm) through it. Then I
ground a point on the end of the bolt. Of course the pole has to be
guyed as well.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[pa0pje]

Looking for a good mast, Jerry?

Look here too:

http://www.qsl.net/dk9sq/

I have one for over 10 years now, holding up a 2x10 meter dipole fed with
400 ohm twinlead. Works great, even on 6 meters...
Collapsed, it is a mere 1.15 meters long and weighs 1 kg, at full length
is's 10 meters. Don't let the black color fool you, it's not made of carbon
fibre as I recently saw one questioning himself on the list, so a quarter
wave vertical for 40 is very well possible.

73,
Peter - PA0PJE

----- Original message-----
From: "Jeremiah McCarthy" <[hidden email]>
To: <>
Sent: 2006 june 13 tuesday 16:45 UTC
Subject: [Elecraft] telescoping poles

>A good base for a portable antenna using telescoping poles is a surf
>fisherman's sand spike...It is a tube with a spike on one end that one
>inserts into the sand to hold an unattended fishing pole upright...Google
>it...
>
>>I have been very pleased with my MFJ 33' mast. Easy to setup and takedown.
> Still looking for a light and secure base for it.<
>
> Jerry, wa2dkg
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

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