Towertalk
[Top] [All Lists]

Re: [TowerTalk] TowerTalk Digest, Vol 132, Issue 61

To: towertalk@contesting.com
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 132, Issue 61
From: w4kw@comcast.net
Date: Tue, 24 Dec 2013 02:00:17 +0000 (UTC)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Back at you and Patsy!!!! 

----- Original Message -----
From: towertalk-request@contesting.com 
To: towertalk@contesting.com 
Sent: Monday, December 23, 2013 11:00:03 AM 
Subject: TowerTalk Digest, Vol 132, Issue 61 

Send TowerTalk mailing list submissions to 
        towertalk@contesting.com 

To subscribe or unsubscribe via the World Wide Web, visit 
        http://lists.contesting.com/mailman/listinfo/towertalk 
or, via email, send a message with subject or body 'help' to 
        towertalk-request@contesting.com 

You can reach the person managing the list at 
        towertalk-owner@contesting.com 

When replying, please edit your Subject line so it is more specific 
than "Re: Contents of TowerTalk digest..." 


Today's Topics: 

   1. Re: TowerTalk Digest, Vol 132, Issue 60 (Larry Stowell) 
   2. Re: K8UR 8 directions switch box (john@kk9a.com) 
   3. Re: K8UR 8 directions switch box (Greg) 


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

Message: 1 
Date: Mon, 23 Dec 2013 10:40:44 -0500 
From: "Larry Stowell" <lclarks@nc.rr.com> 
To: <towertalk@contesting.com> 
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 132, Issue 60 
Message-ID: <3B026DF5A3694E4FB448A69A3DDA186E@WindowsSeven> 
Content-Type: text/plain; format=flowed; charset="iso-8859-1"; 
        reply-type=original 

To All 
I built my own tilt plate back when Al was designing his, and it been in use 
since 2004. 
Very simple and in expensive(about $100 in 2004) Pictures of it are on the 
Yahoo group 
"Crankup Tiltover Tower" group. The hinge is the same as Aluma uses on their 
"ground post" mount. 
The aluminum plates I found at a metal salvage yard(a few extra holes) Its 
seen some fair winds and not moved. 
Three different antennas have been used C31XR, 4el Steppir with 40mtrs, and 
now a Tennadyne T-8. 

Its in the photo section under my call 

73 Larry K1ZW 

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

Message: 3 
Date: Sun, 22 Dec 2013 19:05:57 -0800 (PST) 
From: Bryan Swadener <bswadener@yahoo.com> 
To: "towertalk@contesting.com" <towertalk@contesting.com> 
Subject: Re: [TowerTalk] Boom-to-Mast Tilt fixture 
Message-ID: 
<1387767957.36621.YahooMailNeo@web160403.mail.bf1.yahoo.com> 
Content-Type: text/plain; charset=iso-8859-1 

Alan, 
? 
I'm able to tilt my US Tower TX-472 tower over with my Force12 C-4XL on it, 
in one of two ways 
w/o a tilt fixture... 
? 
The yagi boom is 30' long.? With the use of a 12' step ladder, I'm /just/ 
able to reach the u-bolts 
on the boom-mast clamp, loosen them, and turn & tilt the yagi as needed. See 
photos at 
http://www.tinyurl.com/wa7prc-tower. 
? 
The yagi boom is in five equal-length sections.? With the tower tilted over, 
I'm able to access 
the hardware to remove/install sections of boom + element(s) as needed and 
continue to 
lower the tower using this method, I highly recommend finding some way of 
preventing the 
mast from rotating. My rotator has a brake, or I can use a section of angle 
stock drilled 
to accept u-bolts that temporarily connect the mast?to one rail of the 
tower. I used the 
latter when I needed to work on the HDR300 rotator w/ my feet on the ground. 
? 
The above is what you do when you don't have a tilt-plate. Maybe it's not so 
purty but, 
they work for me. 
? 
vy 73, 
Bryan WA7PRC 
________________________________ 
Date: Sun, 22 Dec 2013 12:32:14 -0500 (GMT-05:00) 
From: Alan Swinger 
Subject: [TowerTalk] Boom-to-Mast Tilt fixture 

In the recent past I saw ADs for a tilt Boom-to-Mast fixture in CQ and QST 
which allowed a 
beam to tilt so that elements were vertical an thus made it easy with a 
tilt-over tower to get 
all on the ground for work. Does anybody have the contact info for the 
company that made 
these since the AD is no longer in the mags. 
Thanks and 73, 
Alan K9MBQ 


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

Message: 4 
Date: Mon, 23 Dec 2013 04:58:16 -0000 
From: "J.Gordon Beattie, Jr., W2TTT" <w2ttt@att.net> 
To: "'J.Gordon Beattie, Jr., W2TTT'" <w2ttt@att.net>, 
<towertalk@contesting.com> 
Subject: [TowerTalk] Looking for a BEST OFFER: For Sale: Heavy Duty 
Mobile Tower 
Message-ID: <68B6F25738D440E58CD9EC9BCC7A4F15@W2TTTLT2> 
Content-Type: text/plain; charset="us-ascii" 

Hi Folks! 

This tower could be used in a fixed or mobile environment.  What I like 
about it, is that you can use a short A-frame ladder to put whatever you 
want on top (e. g. rotator and tall mast and then just use a 1/2 inch 
ratchet to raise it up in about 2 minutes to full height.  The ability to 
put an antenna between 30-45 ft in the air, depending on antenna load 
without having to tip it up is a liberating capability.  I mounted it on the 
back of my old van which I no longer have, and I would just go up on the 
platform built into the rack to drop in the rotator and mast.  In fact, I 
would preinstall the rotator with its cabling into the van and then just 
drop in the mast, antennas and feed lines into the top of the rotator.  I 
would then ratchet it up from the safety and ease of the ground. 



The rack as it exists today, is only the rear 20% needed to support the 
tower and fits very well on a van.  It allows access to the top and also 
provides for in-transit storage of gear.  The key element is the 2 inch 
hitch fixture that supports the bottom of the tower. 



Finally, this tower is REALLY STURDY and can support a whole bunch of 
antenna load.  The limiting element will be the rotator.  It was built for 
the U. S. Army by a German company (unknown) and does not require 
maintenance of seals for hydraulics or pneumatics or the use of a compressor 
to operate.  This is unlike the surplus broadcast towers you see.  Its 
internal cable-driven design is reliable and a pleasure to use.  I have 
never seen another one on the market and I have searched through many 
military vehicle and radio web sites, lists and experts.  My guess is that 
it was built to support a dish on an armored or heavy wheeled vehicle. 



Please let me know of your interest.  I will accept cash or PayPal to 
W2TTT@ATT.NET. 






I am selling my unique 28 ft heavy duty, military tubular tower. 

This cable-driven tower can be raised and lowered by hand using a 1/2 inch 
ratchet handle in about two minutes. The base of the tower is supported by 
a custom offset base bracket that is inserted into a two inch trailer hitch 
receiver and a 
heavy duty custom cargo roof rack to support the top. 

Just add a rotator and a suitable mast, and you can get up to 45 or more 
feet with your antennas! 

This is a great tower for EMCOM, Field Day, Hilltopping and more! 

It will go on any vehicle but the roof rack piece is based on a van body 
with gutters.. 
Also included is a custom base that slides into a 2 inch receiver. 

I will send you photos upon request. 



To take a look, please text or call me at 201 314 6964 or email me. 
I am asking $2,900 or best offer. 

Thanks & 73, 
Gordon Beattie, W2TTT at ARRL dot NET 
201.314.6964 





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

Message: 5 
Date: Mon, 23 Dec 2013 09:03:28 -0200 
From: "Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com> 
To: <towertalk@contesting.com> 
Subject: [TowerTalk] K8UR 8 directions switch box 
Message-ID: <52b818a6.6890ec0a.36c3.78fc@mx.google.com> 
Content-Type: text/plain; charset="us-ascii" 

Hello 



Just to know if someone try the K8UR controller. Seems interesting but want 
to know how do you use it. 



http://www.k8ur.com/ 



thanks! 

Jorge 

CX6VM/CW5W 



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

Message: 6 
Date: Mon, 23 Dec 2013 06:29:22 -0600 
From: Stan Stockton <wa5rtg@gmail.com> 
To: Jorge Diez - CX6VM <cx6vm.jorge@gmail.com> 
Cc: "<towertalk@contesting.com>" <towertalk@contesting.com> 
Subject: Re: [TowerTalk] K8UR 8 directions switch box 
Message-ID: <CAF165D8-78B1-4CEB-A77A-DC0BDDFD6A4E@gmail.com> 
Content-Type: text/plain; charset=us-ascii 

Can't tell much from the very entertaining video but it's worth $500.00 if 
it makes your kids respect you and "possibly"  keeps your wife from cheating 
on you regardless of whether it helps you work DX :-). Made me laugh out 
loud. 

73...Stan, K5GO 



Sent from my iPad 

On Dec 23, 2013, at 5:03 AM, "Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com> 
wrote: 

> Hello 
> 
> 
> 
> Just to know if someone try the K8UR controller. Seems interesting but 
> want 
> to know how do you use it. 
> 
> 
> 
> http://www.k8ur.com/ 
> 
> 
> 
> thanks! 
> 
> Jorge 
> 
> CX6VM/CW5W 
> 
> _______________________________________________ 
> 
> 
> 
> _______________________________________________ 
> TowerTalk mailing list 
> TowerTalk@contesting.com 
> http://lists.contesting.com/mailman/listinfo/towertalk 


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

Message: 7 
Date: Mon, 23 Dec 2013 08:53:12 -0500 
From: Pete Smith N4ZR <n4zr@contesting.com> 
To: towertalk@contesting.com 
Subject: Re: [TowerTalk] K8UR 8 directions switch box 
Message-ID: <52B84048.5080003@contesting.com> 
Content-Type: text/plain; charset=ISO-8859-1; format=flowed 

It's a little hard to tell from the info provided, but if it is to 
switch a K8UR array then I think it is ridiculous overkill.  Modeling 
and actual experience show very little improvement from a 4-element 
dipole array over a 3-element one. 

73, Pete N4ZR 
Check out the Reverse Beacon Network at 
http://reversebeacon.net, 
blog at reversebeacon.blogspot.com. 
For spots, please go to your favorite 
ARC V6 or VE7CC DX cluster node. 

On 12/23/2013 6:03 AM, Jorge Diez - CX6VM wrote: 
> Hello 
> 
> 
> 
> Just to know if someone try the K8UR controller. Seems interesting but 
> want 
> to know how do you use it. 
> 
> 
> 
> http://www.k8ur.com/ 
> 
> 
> 
> thanks! 
> 
> Jorge 
> 
> CX6VM/CW5W 
> 
> _______________________________________________ 
> 
> 
> 
> _______________________________________________ 
> TowerTalk mailing list 
> TowerTalk@contesting.com 
> http://lists.contesting.com/mailman/listinfo/towertalk 
> 



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

Message: 8 
Date: Mon, 23 Dec 2013 07:14:39 -0800 
From: Jim Lux <jimlux@earthlink.net> 
To: towertalk@contesting.com 
Subject: Re: [TowerTalk] K8UR 8 directions switch box 
Message-ID: <52B8535F.2080509@earthlink.net> 
Content-Type: text/plain; charset=ISO-8859-1; format=flowed 

On 12/23/13 5:53 AM, Pete Smith N4ZR wrote: 
> It's a little hard to tell from the info provided, but if it is to 
> switch a K8UR array then I think it is ridiculous overkill.  Modeling 
> and actual experience show very little improvement from a 4-element 
> dipole array over a 3-element one. 
> 


True for gain. 

One potential advantage is that with 4 elements, you have more possible 
directions to put a null, with a simple switching network.  Both 3 and 4 
element arrays will have a really broad main lobe, so there's no real 
advantage to pointing in 3,4,6,8 directions from a forward gain 
standpoint.   But from a "put the null on the interfering station" 
standpoint, having more choices might work better. 

These days, though, I think that the direction to head would be to have 
1 transmitting element that is optimized for efficiency and max ERP. 
And then an array of at least 3 smaller receive elements that you run 
into an SDR to do the null forming.  The number of elements should be at 
least one more than the number of nulls you want. 

Minimum "stuff" out in the outdoors where it can break. 
And, inherently wide band (the receive antennas can be non-resonant) 

Maybe a simple transmit array, but for small numbers of elements close 
to the ground, you're unlikely to get more than 4 or 5 dB, and I'm not 
sure that there's not somewhere else to spend your time/money/complexity 
to get a bigger radiated signal in the desired direction.  (like going 
to H pol instead of V pol).  A lot would depend on the site, too. 



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

Subject: Digest Footer 

_______________________________________________ 
TowerTalk mailing list 
TowerTalk@contesting.com 
http://lists.contesting.com/mailman/listinfo/towertalk 


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

End of TowerTalk Digest, Vol 132, Issue 60 
****************************************** 



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

Message: 2 
Date: Mon, 23 Dec 2013 15:39:31 -0000 
From: <john@kk9a.com> 
To: <TOWERTALK@contesting.com> 
Subject: Re: [TowerTalk] K8UR 8 directions switch box 
Message-ID: <3AAE6BB237A540F78686CF334A3C21C3@kk9a> 
Content-Type: text/plain;        charset="iso-8859-1" 

There is very little information about it on this website. 

john KK9A 

To:<towertalk@contesting.com> 
Subject:[TowerTalk] K8UR 8 directions switch box 
From:"Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com> 
Date:Mon, 23 Dec 2013 09:03:28 -0200 
List-post:<towertalk@contesting.com">mailto:towertalk@contesting.com> 

Hello 

  

Just to know if someone try the K8UR controller. Seems interesting but want 
to know how do you use it. 

  

http://www.k8ur.com/ 

  

thanks! 

Jorge 

CX6VM/CW5W 


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

Message: 3 
Date: Mon, 23 Dec 2013 07:42:57 -0800 
From: Greg <ab7r@cablespeed.com> 
To: john@kk9a.com 
Cc: TOWERTALK@contesting.com 
Subject: Re: [TowerTalk] K8UR 8 directions switch box 
Message-ID: 
        <CAPE+ietZuQ6sWuFpH7Y6GeJ=uEL6HvHp1U1XdhUezET_vs82aA@mail.gmail.com> 
Content-Type: text/plain; charset=ISO-8859-1 

Try this John: 

http://www.remoterig.com/wp/?page_id=166 

73 
Greg 
AB7R 



On Mon, Dec 23, 2013 at 7:39 AM, <john@kk9a.com> wrote: 

> There is very little information about it on this website. 
> 
> john KK9A 
> 
> To:<towertalk@contesting.com> 
> Subject:[TowerTalk] K8UR 8 directions switch box 
> From:"Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com> 
> Date:Mon, 23 Dec 2013 09:03:28 -0200 
> List-post:<towertalk@contesting.com">mailto:towertalk@contesting.com> 
> 
> Hello 
> 
> 
> 
> Just to know if someone try the K8UR controller. Seems interesting but want 
> to know how do you use it. 
> 
> 
> 
> http://www.k8ur.com/ 
> 
> 
> 
> thanks! 
> 
> Jorge 
> 
> CX6VM/CW5W 
>  _______________________________________________ 
> 
> 
> 
> _______________________________________________ 
> TowerTalk mailing list 
> TowerTalk@contesting.com 
> http://lists.contesting.com/mailman/listinfo/towertalk 
> 


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

Subject: Digest Footer 

_______________________________________________ 
TowerTalk mailing list 
TowerTalk@contesting.com 
http://lists.contesting.com/mailman/listinfo/towertalk 


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

End of TowerTalk Digest, Vol 132, Issue 61 
****************************************** 
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
<Prev in Thread] Current Thread [Next in Thread>
  • Re: [TowerTalk] TowerTalk Digest, Vol 132, Issue 61, w4kw <=