The question was for 1/4 wall "but" just for someones future file FWIW, my
24' 3/8 wall chromemolly was 172# and shipped by truck. Dragged it 300 feet
from the truck to the tower with a yard tractor. WHEW was that monster
heavy! Tommy WD4K
-----Original Message-----
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Sent: Tuesday, January 20, 2004 4:56 PM
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Subject: TowerTalk Digest, Vol 13, Issue 44
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Today's Topics:
1. Re: New member.... Antenna limitations. (Ron & Madhavi)
2. Re: grounding (Chris BONDE)
3. Weight of Chromolly (Julio Peralta)
4. Experience with TMM-433SS (Ed Cummins)
5. Re: Weight of Chromolly (W0UN -- John Brosnahan)
6. Re: Weight of Chromolly
7. Re: Weight of Chromolly (W0UN -- John Brosnahan)
8. chrome-moly tubing
9. weight of pipe (jerryc)
10. RE:UHF CONNECTORS FOR LDF5-50A HELIAX (Rauh, Michael J (Mike))
----------------------------------------------------------------------
Date: Tue, 20 Jan 2004 13:50:59 -0500
From: "Ron & Madhavi" <mchilkuri@kasnet.com>
To: <towertalk@contesting.com>, "Pete Smith" <n4zr@contesting.com>
Subject: Re: [TowerTalk] New member.... Antenna limitations.
Message-ID: <001801c3df86$59371660$3d83fcd8@vaio>
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<5.2.0.9.2.20040120124304.025635f0@mail.adelphia.net>
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A magnetic loop will work, but no gurantee that you will shatter any windows
in Moscow! I have worked many Europeans using them inside or on the balcony
of apartments.
73,
Ron, 6Y5/4S7RO
----- Original Message -----
From: Pete Smith <n4zr@contesting.com>
To: <towertalk@contesting.com>
Sent: Tuesday, January 20, 2004 12:43 PM
Subject: Re: [TowerTalk] New member.... Antenna limitations.
> At 09:03 AM 1/20/04 -0800, Mike wrote:
> >How about bying a Steppir verticle (BigIR) and a
> >second pole as a decoy and use it to suspect a clothes
> >hanging line or something like that?
> >
> >The Steppir is built very inconspiciously and is
> >housed in a very plain sleeve
>
>
> Better yet, get two, space them the requisite distance, and phase them.
>
>
> 73, Pete N4ZR
> Check out the World HF Contest Station Database
> Updated 9 Jan 04
> www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
------------------------------
Date: Tue, 20 Jan 2004 10:56:19 -0800
From: "Chris BONDE" <ve7hcb@rac.ca>
To: "Glenn Noska" <nazgul34@hotmail.com>, towertalk@contesting.com
Subject: Re: [TowerTalk] grounding
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If your ground is better than the power companies you are in for some smoke.
A fellow ham nearby put in a great ground, he was also on some low laying
ground
near to a creek. The power company placed its pole on the road allowance,
the
road was built up, well above the low laying surrounding field. Guess what,
the
ground in which the pole was planted dried up in the summer, so o o the
grounding
part went right through his system. He just lost some minor stuff but could
have lost
the house if the wiring became very hot.
Chris opr VE7HCB
From: "Glenn Noska" <nazgul34@hotmail.com>
To: towertalk@contesting.com
Date sent: Mon, 19 Jan 2004 20:44:53 -0500
Copies to: nazgul34@hotmail.com
Subject: [TowerTalk] grounding
[ Double-click this line for list subscription options ]
i'm an electrician in the surge capital of the world, Orlando (
did
lightning just hit that house?), Florida. the last three days were
spent devouring old towertalk threads on grounding, super informative!
well, surge protectors are pretty useless without a good ground and
armed with towertalk knowledge i was ready to give my customer's the
best ground their money could buy.
then, a really sharp engineer at Intermatic dropped this little
bombshell. if your ground is a lot better than the utility's ground at
the transformer then all the neighborhood's surges are coming for a
visit. and you might think they're just coming to your ground, but, as
they travel the common they induce surges in the two hots. So, you may
have dodged the big surge, and bought yourself a whole lot of little
ones.
is this significant? do i need to put a big horkin MOV on the
neutral
to the meter that'll add a couple dozen ohms and keep the
neighborhood's surges out? is there such a thing?
all kidding aside, i'm guaranteeing all appliances and
electronics to
$10,000.00 or the homeowner's deductable (installing Intermatic
IG1300-4T-2C). please help.
_________________________________________________________________
Let
the new MSN Premium Internet Software make the most of your high-speed
experience. http://join.msn.com/?pgmarket=en-us&page=byoa/prem&ST=1
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers",
"Wireless Weather Stations", and lot's more. Call Toll Free,
1-800-333-9041 with any questions and ask for Sherman, W2FLA.
_______________________________________________
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------------------------------
Date: Tue, 20 Jan 2004 14:42:45 -0500
From: "Julio Peralta" <jperalta@tampabay.rr.com>
To: <TOWERTALK@contesting.com>
Subject: [TowerTalk] Weight of Chromolly
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Can anyone give me an Idea how much a 20'X1/4" piece of Chromolly tubing =
would weigh?
Julio, W4HYFrom mark@concertart.com Tue Jan 20 15:26:05 2004
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From: "Mark Beckwith" <mark@concertart.com>
To: <towertalk@contesting.com>
References: <009e01c3df8d$93d8fd40$6401a8c0@uservauzoo32tq>
Subject: Re: [TowerTalk] Weight of Chromolly
Date: Tue, 20 Jan 2004 14:25:53 -0600
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>Can anyone give me an Idea how much a
>20' x 1/4" piece of Chromolly tubing would weigh?
I've lifted one or two of these and from what I remember it was 12 pounds
per foot. I should add "with a little help from my friends."
Mark, N5OT
------------------------------
Date: Tue, 20 Jan 2004 15:29:37 -0500
From: "Ed Cummins" <edcummins@comcast.net>
To: <towertalk@contesting.com>
Subject: [TowerTalk] Experience with TMM-433SS
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I live in a community with antenna restrictions; (they do permit small
antennas on the roof provided they are lower than 10 feet from the
highest part of the roof) however I am going to try to obtain permission
for a small tower. I "need" to put up some short of center support for
a 160/80/40 dipole so the options are: Radio Shack 36 foot mast or get
a small tower such as the TMM-433SS. Granted there is a big difference
in price but there is a big difference in capabilities. My thoughts are
that I will have to get permission for either one thus I might try to go
with the tower. My question what has been anyone's experience with this
tower? Does it pass the community associations muster? Any comments or
pictures that I could use to submit to the community would be
appreciated.
Thanks
Ed W3ETC
------------------------------
Date: Tue, 20 Jan 2004 15:12:06 -0600
From: W0UN -- John Brosnahan <shr@swtexas.net>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Weight of Chromolly
Message-ID: <5.2.1.1.2.20040120150737.02010fb8@pop3.swtexas.net>
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>
>I've lifted one or two of these and from what I remember it was 12 pounds
>per foot. I should add "with a little help from my friends."
Mark--it just FELT that heavy. Checking some web sites I get
about 4.66 pounds per foot for 2" x 0.25 wall 4130--making it about
83.2 pounds for a 20 ft length.
--John
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------------------------------
Date: Tue, 20 Jan 2004 13:13:57 -0800
From: gdaught6@Stanford.edu
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Weight of Chromolly
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On 20 Jan 2004 at 14:25, Mark Beckwith wrote:
> >Can anyone give me an Idea how much a
> >20' x 1/4" piece of Chromolly tubing would weigh?
>
> I've lifted one or two of these and from what I remember it was 12 pounds
> per foot. I should add "with a little help from my friends."
That seems high to me. I got one a couple of years ago, (20
feet long, 1/4 inch wall, and... the missing dimension... 2"
outside diameter) and I recall it being something like 115
pounds. At least that's the weight the shipper charged for.
Two of us could lift it with minimal grunting, so the 115
number seems right.
73,
George T. Daughters
Associate Professor of Cardiothoracic Surgery (Consulting)
Stanford University School of Medicine
Stanford, CA 94305
------------------------------
Date: Tue, 20 Jan 2004 15:15:36 -0600
From: W0UN -- John Brosnahan <shr@swtexas.net>
To: "Julio Peralta" <jperalta@tampabay.rr.com>,
<TOWERTALK@contesting.com>
Subject: Re: [TowerTalk] Weight of Chromolly
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At 01:42 PM 1/20/2004, Julio Peralta wrote:
>Can anyone give me an Idea how much a 20'X1/4" piece of Chromolly tubing
>would weigh?
Julio
I assume that you are using it for a mast and that it is probably
2 inches in diameter with a 1/4 inch wall. If so then the weight for
20 ft is approximately 83.2 pounds for 4130 alloy.
--John
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------------------------------
Date: Tue, 20 Jan 2004 13:16:02 -0800
From: gdaught6@Stanford.edu
To: towertalk@contesting.com
Subject: [TowerTalk] chrome-moly tubing
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Maybe my 115-pounder was 3/8" wall.
73,
George T. Daughters, K6GT
------------------------------
Date: Tue, 20 Jan 2004 17:48:38 -0500
From: "jerryc" <jerryc@clinchrivercorp.com>
To: <TowerTalk@contesting.com>
Subject: [TowerTalk] weight of pipe
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Hello all
The Ryerson Tull steel stock list gives 2" od.x 1/4" wall tube
a weight per foot of 4.673. At 20' long, that is 93.46 pounds.
Some alloys do vary and I don't have the chromolly listing but
nickel and chrome alloys typically weigh more than carbon steel.
JerryC
KC8TES
------------------------------
Date: Tue, 20 Jan 2004 16:08:22 -0500
From: "Rauh, Michael J (Mike)" <rauh@lucent.com>
To: "'hkman@comcast.net'" <hkman@comcast.net>
Cc: "'towertalk@contesting.com'" <towertalk@contesting.com>
Subject: RE:[TowerTalk] UHF CONNECTORS FOR LDF5-50A HELIAX
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Pat,
Davis RF lists a PL-259 for 7/8 Hardline. It might work for you. I have
not used this connector. You can find it at
http://www.davisrf.com/ham1/coaxconn.htm .
Regards,
Mike Rauh NV7X
------------------------------
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End of TowerTalk Digest, Vol 13, Issue 44
*****************************************
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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