KE3D commented:

>I had a similar event.  The antenna rotated back and forth and cur
>thru the Standpipe mounting the Spider bean to the pushup
>mast.  Currently my theory is that if you have the Spider arms
>curved up, the rotational force is bigger.  If the Spider arms are
>flat, the rotating force is minimized.

I must admit, my homebrew spiderbeam (made of quad spreaders, so it has
"flat" arms) has also nearly chewed through a rather valued aluminum mast,
but that was because I failed to tighten one of the U-bolts on the center-to-
mast bracket.  If the arms weren't "flat", if you think about the forces
involved, "stressed" arms will add leverage to the force from the wind, so the
overall force should be greater than with "flat" arms.

I suspect that unlike antennas with asymmetrical windage, a symmetrical
one like the spiderbeam will always have the tendency to "propeller" whilst
the former will tend to act like a wind vane &  become relatively
static as long
as the wind comes out of the same general direction.

Of course, if you want to point the asymmetrical antenna in a direction other
than where it wants to "vane" towards, there is more torque.  But no matter
where you point the symmetrical antenna, it will produce the same amount
of torque no matter where the wind is coming from.  If a symmetrical antenna
starts to spin on the mast, it will just keep on spinning.  The asymmetrical
antenna will spin only enough to find equilibrium.

Solution for mast damage: tighten those U-bolts.  As the asymmetrical
antenna my spiderbeam replaced also nearly sliced through another valuable
ali mast, I believe the solution is to use galvanized U-bolts as you
can tighten
the dickens out of them & not worry about galling the threads.  I haven't had
any problems with my spiderbeam (or any other antenna) twirling as long as I
kept the galvanized U-bolts good & tight.  I've always had problems with any
sizeable antenna that used stainless U-bolts.

The tendency to "propeller" combined with not-quite-enough clamping
action (either not-tightened-enough or not-possible-to-tighten-enough U-bolts)
I suggest is probably why a number of us have had mast damage.

73, ex-VR2BG/p.

I had a similar event.  The antenna rotated back and forth and cur thru the
Standpipe mounting the Spider bean to the pushup mast.  Currently my theory is
that if you have the Spider arms curved up, the rotational force is bigger.  If
the Spider arms are flat, the rotating force is minimized.

I modified the clamp assembly.  I removed the U bolts on the original spider
mounting plates.  I attached an old Hygain mast clamp which is about 3.5 inches
wide.  The Hygain clamp has 1/8 inch vertical aluminum plates on the flat sides
and these plates are joined to the Spider arm mounting plates (horizontal) with
Aluminum angle stock.  It took alot of CAD work to get the same sliding action
that Con has in his design to allow different standpipe diameters (although not
the full range in his design).

This seems to work so far.  The only caution I would give is that remember that
the Stainless steel bolts expand and contract at a different rate than the
aluminum.  If you put it up be sure you tighten it correctly.

I investigated saddle clamps like the DX engineering ones.  They don't make any
to fit Metric Aluminum tube.  If you are using all US sized mast you can get
saddles from them to work.  This was the only scheme I could arrive at which
worked with Metric tube.

I would be glad to share pictures with the group if there is interest.

73  Ed KE3D

My Spiderbeam (5 band HD) really works great!

--- In spiderbeam@yahoogroups.com, Aime DE <on5um@...> wrote:
>
> Hello Jay ,
> This was only my 5 cents as how we overcame the "ALU" eating problem . Maybe
Con DF4SA Mr SPIDERBEAM can look into this idea for futur mods.
> Take care and best wishes for the season.
> 73 de Jim ON5UM-OP5T
>
> --- On Fri, 12/11/09, jth1354 <kb1nyt@...> wrote:
>
> From: jth1354 <kb1nyt@...>
> Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
> To: spiderbeam@yahoogroups.com
> Date: Friday, December 11, 2009, 1:09 AM
>
> Hi Jim
>
> The clamps would have to be added to the existing hub some how.
>
> 73's  Jay KB1nyt
>
> --- In spiderbeam@yahoogroups.com, Aime DE <on5um@> wrote:
> >
> > Hey Jay,
> >
> > Checkout my mail to the group and also a picture I posted about full saddle
clamps .
> >
> > GL es best 73 ,
> >
> > Jim ON5UM-OP5T
> >
> > --- On Wed, 12/9/09, jth1354 <kb1nyt@> wrote:
> >
> > From: jth1354 <kb1nyt@>
> > Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
> > To: spiderbeam@yahoogroups.com
> > Date: Wednesday, December 9, 2009, 1:24 PM
> >
> > I would like to see a picture of the mod. My Spiderbeam has cut the mast
twice in the last year or so.  I tried pinning the clamp to the mast with a bolt
but the movement just sheared the bolt off. Currently the antenna is on the
ground and I am debating would to do.
> >
> > Thanks
> > Jay KB1NYT
> >
> > --- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@> wrote:
> > >
> > > Hi Philip,
> > > I had similar problem - in fact pipe was broken at the end.
> > > One possible solution is to use support very common on Quad antennas.
> > > Angle aluminium piece connected to pipe using muffler clamps.
> > > Most big quads use this method to support spreaders.
> > > If you want, I can send you photos of my modified push up mast.
> > > After mods there was no pipe damage in 2 years of service.
> > > Tino, VK3EGN
> > >
> > > --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> > > >
> > > >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> > > >
> > > > This photo shows the deep scratches that were made by strong winds
rotating the antenna against the supporting aluminium pole. The tube is, I
think, 35mm diameter.
> > > >
> > >
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >       
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Hello Jay ,
This was only my 5 cents as how we overcame the "ALU" eating problem . Maybe Con
DF4SA Mr SPIDERBEAM can look into this idea for futur mods.
Take care and best wishes for the season.
73 de Jim ON5UM-OP5T

--- On Fri, 12/11/09, jth1354 <kb1nyt@...> wrote:

From: jth1354 <kb1nyt@...>
Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
To: spiderbeam@yahoogroups.com
Date: Friday, December 11, 2009, 1:09 AM

Hi Jim

The clamps would have to be added to the existing hub some how.

73's  Jay KB1nyt

--- In spiderbeam@yahoogroups.com, Aime DE <on5um@...> wrote:
>
> Hey Jay,
>
> Checkout my mail to the group and also a picture I posted about full saddle
clamps .
>
> GL es best 73 ,
>
> Jim ON5UM-OP5T
>
> --- On Wed, 12/9/09, jth1354 <kb1nyt@...> wrote:
>
> From: jth1354 <kb1nyt@...>
> Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
> To: spiderbeam@yahoogroups.com
> Date: Wednesday, December 9, 2009, 1:24 PM
>
> I would like to see a picture of the mod. My Spiderbeam has cut the mast twice
in the last year or so.  I tried pinning the clamp to the mast with a bolt but
the movement just sheared the bolt off. Currently the antenna is on the ground
and I am debating would to do.
>
> Thanks
> Jay KB1NYT
>
> --- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@> wrote:
> >
> > Hi Philip,
> > I had similar problem - in fact pipe was broken at the end.
> > One possible solution is to use support very common on Quad antennas.
> > Angle aluminium piece connected to pipe using muffler clamps.
> > Most big quads use this method to support spreaders.
> > If you want, I can send you photos of my modified push up mast.
> > After mods there was no pipe damage in 2 years of service.
> > Tino, VK3EGN
> >
> > --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> > >
> > >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> > >
> > > This photo shows the deep scratches that were made by strong winds
rotating the antenna against the supporting aluminium pole. The tube is, I
think, 35mm diameter.
> > >
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
>
>       
>
> [Non-text portions of this message have been removed]
>




------------------------------------

Yahoo! Groups Links








[Non-text portions of this message have been removed]

Hi Tino

This is nice and very simple.

73's Jay KB1NYT




--- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@...> wrote:
>
> Jay,
> I also tried bolt pin but pin hole just grows.
> Muffler clamp has large contact surface and static friction is huge. Slip
never happens and pipe lives.
> I also used aluminium shim under muffler clamp.
> See photos section, album is VK3EGN Push Up Mast.
> Cheers
> Tino, VK3EGN
>
> --- In spiderbeam@yahoogroups.com, "jth1354" <kb1nyt@> wrote:
> >
> > I would like to see a picture of the mod. My Spiderbeam has cut the mast
twice in the last year or so.  I tried pinning the clamp to the mast with a bolt
but the movement just sheared the bolt off. Currently the antenna is on the
ground and I am debating would to do.
> >
> > Thanks
> > Jay KB1NYT
> >
> > --- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@> wrote:
> > >
> > > Hi Philip,
> > > I had similar problem - in fact pipe was broken at the end.
> > > One possible solution is to use support very common on Quad antennas.
> > > Angle aluminium piece connected to pipe using muffler clamps.
> > > Most big quads use this method to support spreaders.
> > > If you want, I can send you photos of my modified push up mast.
> > > After mods there was no pipe damage in 2 years of service.
> > > Tino, VK3EGN
> > >
> > > --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> > > >
> > > >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> > > >
> > > > This photo shows the deep scratches that were made by strong winds
rotating the antenna against the supporting aluminium pole. The tube is, I
think, 35mm diameter.
> > > >
> > >
> >
>

Hi Jim

The clamps would have to be added to the existing hub some how.

73's  Jay KB1nyt

--- In spiderbeam@yahoogroups.com, Aime DE <on5um@...> wrote:
>
> Hey Jay,
>
> Checkout my mail to the group and also a picture I posted about full saddle
clamps .
>
> GL es best 73 ,
>
> Jim ON5UM-OP5T
>
> --- On Wed, 12/9/09, jth1354 <kb1nyt@...> wrote:
>
> From: jth1354 <kb1nyt@...>
> Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
> To: spiderbeam@yahoogroups.com
> Date: Wednesday, December 9, 2009, 1:24 PM
>
> I would like to see a picture of the mod. My Spiderbeam has cut the mast twice
in the last year or so.  I tried pinning the clamp to the mast with a bolt but
the movement just sheared the bolt off. Currently the antenna is on the ground
and I am debating would to do.
>
> Thanks
> Jay KB1NYT
>
> --- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@> wrote:
> >
> > Hi Philip,
> > I had similar problem - in fact pipe was broken at the end.
> > One possible solution is to use support very common on Quad antennas.
> > Angle aluminium piece connected to pipe using muffler clamps.
> > Most big quads use this method to support spreaders.
> > If you want, I can send you photos of my modified push up mast.
> > After mods there was no pipe damage in 2 years of service.
> > Tino, VK3EGN
> >
> > --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> > >
> > >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> > >
> > > This photo shows the deep scratches that were made by strong winds
rotating the antenna against the supporting aluminium pole. The tube is, I
think, 35mm diameter.
> > >
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Hello to your all,
Last weekend I finished my automatic antenna-switch for the FT-950 (but also for
any other Yeasu-TCX with a BCD-Banddata)
I make a folder called FT-950 Automatic Antenna-Switch, and put 5 files in it.
The first 2 files are my configuration with my dipoles and spiderbeam. The 2
other files are as you can connect it for your configuration. the 5th file is
the BCD-code for the begin-frequency and end-frequency.

You can combine the outputs of the CD4028 for your Relais-Drivers and antenna's,
and also for the LED-drivers.
Now I don't have to worry about if the right antenna is switch on for the right
band. I build this project on 4 pieces of experimenting-board and put it in my
Ameritron RCS-8V Remote Coax Switch. You can choose if you like to switch it
automatic by the FT-950 or by hand with a switch on the frontpanel of the
control-box.You can use it also for your own homemade antenna-switch and combine
as you like for your antenna-configuration.
I still don't have found the 10Pin-Miniplug for my FT-950, so I put some
seperate wires in linearconnector and it works also fb.


Hope you can use this project for your own Yeasu-TCX and antenna's


If you have any questions, please let me know.


Succes with building it and make working with your Yeasu-TCX more comfortable
!!!!


Best 73's de Jan PA2JJB Texel-Island EU-038

Hello Spiderbeam-builders,
                          After a long silence from my side, here some new pics
from my 30 and 40M dipoles I build in my spiderbeam.
At a first try I put the linear loaded 40M-dipole (design of K4VX) parallel with
the 15M-dipole of the spiderbeam, but this distorted the SWR-curves of the 15
and 17M-bands.
Then I put the 40M-dipole at angle of 90 degrees from the other dipoles, and
that was the best option, without any distorsion of the SWR-curves of the
spiderbeam-dipoles.
I used a seperate HighGain-Balun, a coaxswitch from Ameritron (see other
pictures in the same folder) and extended the spiderbeam with a part of a
fiberglass fishingpole wich fit over the end off the spiderbeam-pole, its 116cm
long and its diameter inside is 26MM.
The pics shows exactly how the 40M and 30M-dipoles are fitted in the spiderbeam.
The 40M-dipole on top of the upper-guywires, and the 30M goes from the balun
vertical to the under-guywires and hanging some down at the end of the
extension. I must make a holder or so to keep it in place. But both the 40 and
30M-dipoles working fb and I can turn the spiderbeam to maximise the signal or
minimise the QRM hi hi.

I make the 450 Ohm parallel-line  some longer so the antenna-wire gould be some
shorter to fit between the extensions FB-poles

For more information look at the pictures to start from:


http://groups.yahoo.com/group/spiderbeam/photos/album/1038076907/pic/134155627/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc



Oh yes, dont use ever black tieribs to fixed the antennawires, as I did two
years ago, because they will break and you can fix your wires again as I did
several times now.
So fix the wires UNDER the hoseclamps on the fiberpoles, and it will make by all
the wires a very strong antenna.


For now lots off experimenting with this fb antenna wich giving me lots of
works, pleasure, experimenting, and lots of DX !!!!


For you and your family Merry Chrismas and a Happy New Year 2010


73's de Jan PA2JJB Texel-Island

Jay,
I also tried bolt pin but pin hole just grows.
Muffler clamp has large contact surface and static friction is huge. Slip never
happens and pipe lives.
I also used aluminium shim under muffler clamp.
See photos section, album is VK3EGN Push Up Mast.
Cheers
Tino, VK3EGN

--- In spiderbeam@yahoogroups.com, "jth1354" <kb1nyt@...> wrote:
>
> I would like to see a picture of the mod. My Spiderbeam has cut the mast twice
in the last year or so.  I tried pinning the clamp to the mast with a bolt but
the movement just sheared the bolt off. Currently the antenna is on the ground
and I am debating would to do.
>
> Thanks
> Jay KB1NYT
>
> --- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@> wrote:
> >
> > Hi Philip,
> > I had similar problem - in fact pipe was broken at the end.
> > One possible solution is to use support very common on Quad antennas.
> > Angle aluminium piece connected to pipe using muffler clamps.
> > Most big quads use this method to support spreaders.
> > If you want, I can send you photos of my modified push up mast.
> > After mods there was no pipe damage in 2 years of service.
> > Tino, VK3EGN
> >
> > --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> > >
> > >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> > >
> > > This photo shows the deep scratches that were made by strong winds
rotating the antenna against the supporting aluminium pole. The tube is, I
think, 35mm diameter.
> > >
> >
>

Hey Jay,

Checkout my mail to the group and also a picture I posted about full saddle
clamps .

GL es best 73 ,

Jim ON5UM-OP5T

--- On Wed, 12/9/09, jth1354 <kb1nyt@...> wrote:

From: jth1354 <kb1nyt@...>
Subject: [spiderbeam] Re: Photo of deep scratch in antenna support aluminium
pole
To: spiderbeam@yahoogroups.com
Date: Wednesday, December 9, 2009, 1:24 PM

I would like to see a picture of the mod. My Spiderbeam has cut the mast twice
in the last year or so.  I tried pinning the clamp to the mast with a bolt but
the movement just sheared the bolt off. Currently the antenna is on the ground
and I am debating would to do.

Thanks
Jay KB1NYT

--- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@...> wrote:
>
> Hi Philip,
> I had similar problem - in fact pipe was broken at the end.
> One possible solution is to use support very common on Quad antennas.
> Angle aluminium piece connected to pipe using muffler clamps.
> Most big quads use this method to support spreaders.
> If you want, I can send you photos of my modified push up mast.
> After mods there was no pipe damage in 2 years of service.
> Tino, VK3EGN
>
> --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> >
> >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> >
> > This photo shows the deep scratches that were made by strong winds rotating
the antenna against the supporting aluminium pole. The tube is, I think, 35mm
diameter.
> >
>




------------------------------------

Yahoo! Groups Links








[Non-text portions of this message have been removed]

I would like to see a picture of the mod. My Spiderbeam has cut the mast twice
in the last year or so.  I tried pinning the clamp to the mast with a bolt but
the movement just sheared the bolt off. Currently the antenna is on the ground
and I am debating would to do.

Thanks
Jay KB1NYT

--- In spiderbeam@yahoogroups.com, "vk3egn" <tpavic@...> wrote:
>
> Hi Philip,
> I had similar problem - in fact pipe was broken at the end.
> One possible solution is to use support very common on Quad antennas.
> Angle aluminium piece connected to pipe using muffler clamps.
> Most big quads use this method to support spreaders.
> If you want, I can send you photos of my modified push up mast.
> After mods there was no pipe damage in 2 years of service.
> Tino, VK3EGN
>
> --- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@> wrote:
> >
> >
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> >
> > This photo shows the deep scratches that were made by strong winds rotating
the antenna against the supporting aluminium pole. The tube is, I think, 35mm
diameter.
> >
>

Hello Group ,

I added a picture in the photos section . It is called
"Full saddles.jpg",

Greetings ,

Jim ON5UM-OP5T

Hi Philip,
I had similar problem - in fact pipe was broken at the end.
One possible solution is to use support very common on Quad antennas.
Angle aluminium piece connected to pipe using muffler clamps.
Most big quads use this method to support spreaders.
If you want, I can send you photos of my modified push up mast.
After mods there was no pipe damage in 2 years of service.
Tino, VK3EGN

--- In spiderbeam@yahoogroups.com, "Philip" <philip.painter@...> wrote:
>
>
http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
>
> This photo shows the deep scratches that were made by strong winds rotating
the antenna against the supporting aluminium pole. The tube is, I think, 35mm
diameter.
>

Hello group,

I think that the only way to avoid these things to happen will be to use full
saddles on the clamps instead of using the ones that grip with teeth fixed onto
the supporting tube.
At OP4K , we had the same problems and allmost lost a very big OPTIBEAM 18
element Yagi up on a 40 m high building . The double ALU  tube was practically
eaten after 1 year of turning and pulling in the winds. At OT5A M/M contest all
clamps are using full saddle type compression systems . Attached is an example
of double system but half of it is ok.
I think the extra cost for Con's Spiderbeam boom to mast clamps will be
negligable thinking what the advantage will be on the long term.

Best regards ,

Jim ON5UM-OP5T

--- On Tue, 12/8/09, Philip <philip.painter@...> wrote:

From: Philip <philip.painter@...>
Subject: [spiderbeam] Photo of deep scratch in antenna support aluminium pole
To: spiderbeam@yahoogroups.com
Date: Tuesday, December 8, 2009, 7:14 PM

http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc

This photo shows the deep scratches that were made by strong winds rotating the
antenna against the supporting aluminium pole. The tube is, I think, 35mm
diameter.



------------------------------------

Yahoo! Groups Links








[Non-text portions of this message have been removed]

http://groups.yahoo.com/group/spiderbeam/photos/album/1010054294/pic/751996391/v\
iew?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc

This photo shows the deep scratches that were made by strong winds rotating the
antenna against the supporting aluminium pole. The tube is, I think, 35mm
diameter.

Hi Rick,
There are 3 tricks to this:
1. Bottom section of mast needs to be supported properly.
When you try to pull out another section, mast does not lift up.

2. Loosen clamps on 1 or 2 sections below one being extended.
   Tight clamp deforms pipe somewhat, and blocks movement of pipes inside.

3. Modify mast so you can loosen all clamps and errect it easier.
You need to stop sections colapse within each other. Tie band of electrical tape
(or rubber band) about 40mm bellow top of each section.Now you can loosen clamp,
and section will not fall into one underneath. You probably need to do it on
bottom 5 sections only.

My push up mast has rubber band stoppers on all sections.
I start with all clamps totaly loose, and errect it easy.
As always in life, having 53 cm biceps helps.

Cheers, Tino VK3EGN

--- In spiderbeam@yahoogroups.com, "Rick Westerman" <Rick@...> wrote:
>
> When my mast was new, I could extend it the full 10m (with beam on top).
>
> But after being exposed to the wx for one year, I am no longer able to
> extend it alone.
>
> I need a second person to get beyone 7 or 8 meters!
>
>
>
> 73
>
> Rick
>
>
>
> From: spiderbeam@yahoogroups.com [mailto:spiderbeam@yahoogroups.com] On
> Behalf Of vias
> Sent: Saturday, November 28, 2009 2:32 AM
> To: spiderbeam@yahoogroups.com
> Subject: [spiderbeam] Telescopic mast not extending
>
>
>
>
>
> I wonder if anyone has any suggestions. My 15m aluminium Spiderbeam
> telescopic mast is up at about 7 or 8 metres and I just can't push it up any
> further. I have, of course, loosened the guys above the push point and the
> mast is pretty vertical. It's the lower 4 or 5 sections that are not
> movable. Perhaps I'm just not strong enough so my first action is to get
> some helpful extra muscle on the job.
>
> TIA
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Hi Con,
thanks for 7MHz QSO in contest, I hope you did well from Portugal.
At the time I was using 18m pole to support coax on kite lifted vertical
dipole.
Vertical dipole was feed at the bottom, so top was about 36m high.
It was raining, and I did not errect 26m pole (hard to do with umbrella).

I have tried your 26m pole few times, it is simply fantastic.
New clamps are excellent, very quick and elegant, excellent friction.
Pole is very well balanced, lots of strength in bottom sections.
On first try it took me roughly an hour to erect pole on myself.
Second time it took only about 20 minutes.

Since I do it without any help, I have small variation on installation.
1. I drive rod into ground as anchor, and strap bottom of pole to it using
velcro.
2. Set of guy ropes on top of first section (1.9m high), using 4mm kevlar rope .
Forces can become significant with such low support.
3. This keeps pole upright during installation and dismantling.
4. Procedure for erecting almost exactly as in your video.

I have noticed that one set of guys is adequate in light to moderate winds.

Pole is mostly used to experiment on 160m and 80m.
I use kite to lift end feed vertical dipole, and pole to lift RG6U coax to
feed point.
I find even half wave vertical works better on low bands when bottom is
elevated another 20m of the ground.
VK to EU contacts are extremely low radiation angle, and strange things do
happen.
Several times I changes elevation of kite, and signals changed dramaticaly
(say 2-3 S units).

Recently I was preparing end feed vertical dipole for 80m, adjusting bottom
feed network.
Vertical was  kite lifted to over 60 meters, and coax support was required
approximately 25m height.
Your 26m pole easily supported RG6U coax roughly 25m high.
When I finished adjusting SWR, it was still broad daylight in our summer.
Scaned the band, and it sounded completely dead.
I called CQ just to see what happens, and GM4FAM replied.
It sounded unbeliveable, must have been long path QSO over very difficult
path.
He immediately sent me e-mail to confirm the QSO, maybe to let me know I did
not work pirate.

73 Tino, VK3EGN

[Non-text portions of this message have been removed]

Hi Guiseppe,

at the moment my stock level of this wire is pretty low, therefore I
would kindly ask you to order it directly at www.thewireman.com. The
part number is "CQ-532"

73 Con DF4SA

-------------------
SPIDERBEAM GMBH
Dipl.-Ing. Cornelius Paul
www.spiderbeam.com




Giuseppe wrote:
> Hallo dear firends, i need info about wire for antenna.
> I look for it on spiderbeam site but negative.
> Where i can purchase it ?
> I woul make a 5 band antenna so i need 100 meters...
>
> Rgds
>
> Giuseppe  IK7FPV
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

Hallo dear firends, i need info about wire for antenna.
I look for it on spiderbeam site but negative.
Where i can purchase it ?
I woul make a 5 band antenna so i need 100 meters...

Rgds

Giuseppe  IK7FPV

When my mast was new, I could extend it the full 10m (with beam on top).

But after being exposed to the wx for one year, I am no longer able to
extend it alone.

I need a second person to get beyone 7 or 8 meters!



73

Rick



From: spiderbeam@yahoogroups.com [mailto:spiderbeam@yahoogroups.com] On
Behalf Of vias
Sent: Saturday, November 28, 2009 2:32 AM
To: spiderbeam@yahoogroups.com
Subject: [spiderbeam] Telescopic mast not extending





I wonder if anyone has any suggestions. My 15m aluminium Spiderbeam
telescopic mast is up at about 7 or 8 metres and I just can't push it up any
further. I have, of course, loosened the guys above the push point and the
mast is pretty vertical. It's the lower 4 or 5 sections that are not
movable. Perhaps I'm just not strong enough so my first action is to get
some helpful extra muscle on the job.

TIA





[Non-text portions of this message have been removed]

I wonder if anyone has any suggestions. My 15m aluminium Spiderbeam telescopic
mast is up at about 7 or 8 metres and I just can't push it up any further. I
have, of course, loosened the guys above the push point and the mast is pretty
vertical. It's the lower 4 or 5 sections that are not movable. Perhaps I'm just
not strong enough so my first action is to get some helpful extra muscle on the
job.

TIA

Welcome to CT Land Con.

I hope you enjoy the country beside the bad weather.

Good luck in the contest.

If you come to Porto please let me know.

73 de CT1HXB - Joel

2009/11/25 DF4SA <df4sa@...>

>
>
> Well ... I would say "never say never" :-) but currently we are not
> intending to make a 40m Spiderbeam commercially available. However
> everybody who wants to know the tried and proven dimensions for a
> 40/30/20m "Tarantula" beam such as we have used it last year at YM3A
> (http://www.lzopen.com/YM3A/ .. and the righthandside antenna in this
> photo is it: http://www.lzopen.com/YM3A/images/DSCF0981.jpg) please send
> me an eMail and I will be happy to provide a PDF with the detailed
> dimensions.
>
> Larry, now to answer your question about the Spiderbeam 40-10m Yagi
> antennas to be used at CR5X:
>
> We will use two 20-15-10m Spiderbeams, and both of them will have a 40m
> dipole built in. This will be accomplished without adding any additional
> mechanicx nor windload to the antenna, by simply adding the two dipole
> wires alongside the "boom" of the Spiderbeam and using the 20m director
> and 20m reflector as two capacitance hats. This dipole is fed via a
> delta match (through HV capacitors) and connected to the same balun that
> also feeds the 20-15-10m section. Electrically it does not influence or
> distort the performance on the high bands. So basically you are getting
> a 40m dipole addition for free, adding very little weight, no windload
> and no additional coax cable. We have been discussing this idea many
> times here on this reflector, and several people have built it
> successfully. The most experienced guy here is DF9GR and he has also put
> together a document that can be found in the files section.
>
> If all goes well during the test in CQWW I want to finally get my act
> together and make this delta-match fed 40m dipole an add-on kit ready to
> be used by everybody, with proven dimensions etc. So keep your fingers
> crossed for us :-)
>
> Yes, I am already traveling .. Greetings from Lisbon airport, waiting
> for HA1AG to arrive here soon. Its rainy, windy and cold here, so
> "perfect antenna building WX"...
>
> 73 & CU in the contest - Con DF4SA
>
> -------------------
> SPIDERBEAM GMBH
> Dipl.-Ing. Cornelius Paul
> www.spiderbeam.com
>
>
> Rick Westerman wrote:
> > Larry, since Con is already traveling, I'll answer that one with a
> definite
> > "NO".
> >
> > It is not only not available, it is not even planned to ever be
> available.
> >
> > Among other reasons, the logistics for the center section would be a
> > nightmare for us!
> >
> > It's is, simply put, "a MONSTER".
> >
> >
> >
> > If anyone is seriously interested, we will supply information about the
> > design and even sell the fiberglass material, as well as the smaller
> bits,
> > but we do not intend to ever commercially produce the center section.
> >
> >
> >
> > 73
> >
> > Rick, NJ0IP
> >
> > (Spiderbeam-US)
> >
> >
> >
> > From: spiderbeam@yahoogroups.com <spiderbeam%40yahoogroups.com> [mailto:
> spiderbeam@yahoogroups.com <spiderbeam%40yahoogroups.com>] On
> > Behalf Of Larry K4AB
> > Sent: Tuesday, November 24, 2009 3:24 PM
> > To: spiderbeam@yahoogroups.com <spiderbeam%40yahoogroups.com>
> > Subject: [spiderbeam] 40 Meter Spiderbeam
> >
> >
> >
> >
> >
> > DF4SA wrote:
> >
> >
> >> CT1BWW, HA1AG and DF4SA will be active in the CQWW CW Contest operating
> as
> >>
> > CR5X in the Multi/Single category. We will >install two fully equipped
> > stations using 2 Spiderbeam Yagis on 40-10m,
> >
> > Does this mean that a 40-10M spiderbeam is now available?
> >
> > 73,
> > Larry K4AB
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>


[Non-text portions of this message have been removed]

Good evening Con



Hello con
If you can send me the dimensions of the tarentula  I'll build it
I also have a project of cubical quad bike 4 el with tube Spiderbeam 73 qro
François F5NGA


-------Message original-------

De : DF4SA
Date : 25/11/2009 19:59:06
A : spiderbeam@yahoogroups.com
Sujet : Re: [spiderbeam] 40 Meter Spiderbeam

Well  ... I would say "never say never" :-) but currently we are not
intending to make a 40m Spiderbeam commercially available. However
everybody who wants to know the tried and proven dimensions for a
40/30/20m "Tarantula" beam such as we have used it last year at YM3A
(http://www.lzopen.com/YM3A/ .. and the righthandside antenna in this
photo is it: http://www.lzopen.com/YM3A/images/DSCF0981.jpg) please send
me an eMail and I will be happy to provide a PDF with the detailed
dimensions.

Larry, now to answer your question about the Spiderbeam 40-10m Yagi
antennas to be used at CR5X:

We will use two 20-15-10m Spiderbeams, and both of them will have a 40m
dipole built in. This will be accomplished without adding any additional
mechanicx nor windload to the antenna, by simply adding the two dipole
wires alongside the "boom" of the Spiderbeam and using the 20m director
and 20m reflector as two capacitance hats. This dipole is fed via a
delta match (through HV capacitors) and connected to the same balun that
also feeds the 20-15-10m section. Electrically it does not influence or
distort the performance on the high bands. So basically you are getting
a 40m dipole addition for free, adding very little weight, no windload
and no additional coax cable. We have been discussing this idea many
times here on this reflector, and several people have built it
successfully. The most experienced guy here is DF9GR and he has also put
together a document that can be found in the files section.

If all goes well during the test in CQWW I want to finally get my act
together and make this delta-match fed 40m dipole an add-on kit ready to
be used by everybody, with proven dimensions etc. So keep your fingers
crossed for us :-)

Yes, I am already traveling .. Greetings from Lisbon airport, waiting
for HA1AG to arrive here soon. Its rainy, windy and cold here, so
"perfect antenna building WX"...

73 & CU in the contest - Con DF4SA

-------------------
SPIDERBEAM GMBH
Dipl.-Ing. Cornelius Paul
www.spiderbeam.com




Rick Westerman wrote:
> Larry, since Con is already traveling, I'll answer that one with a
definite
> "NO".
>
> It is not only not available, it is not even planned to ever be available.
>
> Among other reasons, the logistics for the center section would be a
> nightmare for us!
>
> It's is, simply put, "a MONSTER".
>
>
>
> If anyone is seriously interested, we will supply information about the
> design and even sell the fiberglass material, as well as the smaller bits,
> but we do not intend to ever commercially produce the center section.
>
>
>
> 73
>
> Rick, NJ0IP
>
> (Spiderbeam-US)
>
>
>
> From: spiderbeam@yahoogroups.com [mailto:spiderbeam@yahoogroups.com] On
> Behalf Of Larry K4AB
> Sent: Tuesday, November 24, 2009 3:24 PM
> To: spiderbeam@yahoogroups.com
> Subject: [spiderbeam] 40 Meter Spiderbeam
>
>
>
>
>
> DF4SA wrote:
>
>
>> CT1BWW, HA1AG and DF4SA will be active in the CQWW CW Contest operating
as
>>
> CR5X in the Multi/Single category. We will >install two fully equipped
> stations using 2 Spiderbeam Yagis on 40-10m,
>
> Does this mean that a 40-10M spiderbeam is now available?
>
> 73,
> Larry K4AB
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>


------------------------------------

Yahoo! Groups Links





[Non-text portions of this message have been removed]

Well  ... I would say "never say never" :-) but currently we are not
intending to make a 40m Spiderbeam commercially available. However
everybody who wants to know the tried and proven dimensions for a
40/30/20m "Tarantula" beam such as we have used it last year at YM3A
(http://www.lzopen.com/YM3A/ .. and the righthandside antenna in this
photo is it: http://www.lzopen.com/YM3A/images/DSCF0981.jpg) please send
me an eMail and I will be happy to provide a PDF with the detailed
dimensions.

Larry, now to answer your question about the Spiderbeam 40-10m Yagi
antennas to be used at CR5X:

We will use two 20-15-10m Spiderbeams, and both of them will have a 40m
dipole built in. This will be accomplished without adding any additional
mechanicx nor windload to the antenna, by simply adding the two dipole
wires alongside the "boom" of the Spiderbeam and using the 20m director
and 20m reflector as two capacitance hats. This dipole is fed via a
delta match (through HV capacitors) and connected to the same balun that
also feeds the 20-15-10m section. Electrically it does not influence or
distort the performance on the high bands. So basically you are getting
a 40m dipole addition for free, adding very little weight, no windload
and no additional coax cable. We have been discussing this idea many
times here on this reflector, and several people have built it
successfully. The most experienced guy here is DF9GR and he has also put
together a document that can be found in the files section.

If all goes well during the test in CQWW I want to finally get my act
together and make this delta-match fed 40m dipole an add-on kit ready to
be used by everybody, with proven dimensions etc. So keep your fingers
crossed for us :-)

Yes, I am already traveling .. Greetings from Lisbon airport, waiting
for HA1AG to arrive here soon. Its rainy, windy and cold here, so
"perfect antenna building WX"...

73 & CU in the contest - Con DF4SA

-------------------
SPIDERBEAM GMBH
Dipl.-Ing. Cornelius Paul
www.spiderbeam.com




Rick Westerman wrote:
> Larry, since Con is already traveling, I'll answer that one with a definite
> "NO".
>
> It is not only not available, it is not even planned to ever be available.
>
> Among other reasons, the logistics for the center section would be a
> nightmare for us!
>
> It's is, simply put, "a MONSTER".
>
>
>
> If anyone is seriously interested, we will supply information about the
> design and even sell the fiberglass material, as well as the smaller bits,
> but we do not intend to ever commercially produce the center section.
>
>
>
> 73
>
> Rick, NJ0IP
>
> (Spiderbeam-US)
>
>
>
> From: spiderbeam@yahoogroups.com [mailto:spiderbeam@yahoogroups.com] On
> Behalf Of Larry K4AB
> Sent: Tuesday, November 24, 2009 3:24 PM
> To: spiderbeam@yahoogroups.com
> Subject: [spiderbeam] 40 Meter Spiderbeam
>
>
>
>
>
> DF4SA wrote:
>
>
>> CT1BWW, HA1AG and DF4SA will be active in the CQWW CW Contest operating as
>>
> CR5X in the Multi/Single category. We will >install two fully equipped
> stations using 2 Spiderbeam Yagis on 40-10m,
>
> Does this mean that a 40-10M spiderbeam is now available?
>
> 73,
> Larry K4AB
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

Larry, since Con is already traveling, I'll answer that one with a definite
"NO".

It is not only not available, it is not even planned to ever be available.

Among other reasons, the logistics for the center section would be a
nightmare for us!

It's is, simply put, "a MONSTER".



If anyone is seriously interested, we will supply information about the
design and even sell the fiberglass material, as well as the smaller bits,
but we do not intend to ever commercially produce the center section.



73

Rick, NJ0IP

(Spiderbeam-US)



From: spiderbeam@yahoogroups.com [mailto:spiderbeam@yahoogroups.com] On
Behalf Of Larry K4AB
Sent: Tuesday, November 24, 2009 3:24 PM
To: spiderbeam@yahoogroups.com
Subject: [spiderbeam] 40 Meter Spiderbeam





DF4SA wrote:

>CT1BWW, HA1AG and DF4SA will be active in the CQWW CW Contest operating as
CR5X in the Multi/Single category. We will >install two fully equipped
stations using 2 Spiderbeam Yagis on 40-10m,

Does this mean that a 40-10M spiderbeam is now available?

73,
Larry K4AB

[Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]

DF4SA wrote:

>CT1BWW, HA1AG and DF4SA will be active in the CQWW CW Contest operating as
CR5X in the Multi/Single category. We will >install two fully equipped
stations using 2 Spiderbeam Yagis on 40-10m,

Does this mean that a 40-10M spiderbeam is now available?

73,
Larry K4AB


[Non-text portions of this message have been removed]

-Good morning
Many thanks for the all informations but i think that the problèm is the  rain
on fiberglass give by Conrad DF4SA because after i rotate the antenna more time
it's better !!!before i try différent solutions on the balun to dry it but with
no result and the coaxial cable is new and good quality; H155 cable Many thanks
and it's a very good antenna for DX !!! 73 F5BNJ