[TowerTalk] TowerTalk Digest, Vol 218, Issue 22

k1to at aol.com k1to at aol.com
Sat Feb 20 13:22:58 EST 2021 

Forget the guy wire complications.  Tram to a higher spot, say 70' nominally, then it is relatively trivial to drop the antenna into place.
73, Dan
 

I am hoisting JK Mid Tri (100 lb) to 65' on a 100' 45G. There are 3 sets of
guy wires at 32', 62' and 95'. I am not clearing one guy at 62'. If I
remove that guy wire, should I loosen the other guy wires at 62', to avoid
potential bending?

Ignacy NO9E
 
 
 
-----Original Message-----
From: towertalk-request at contesting.com
To: towertalk at contesting.com
Sent: Sat, Feb 20, 2021 12:00 pm
Subject: TowerTalk Digest, Vol 218, Issue 22

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Today's Topics:

  1. sell  Brian Beezley ao (Kevin Adam)
  2. Re: Rohn Tower Pier Pin install (john at kk9a.com)
  3. Loosing guy wires when hoisting antenna (Ignacy Misztal)
  4. Re: Loosing guy wires when hoisting antenna (john at kk9a.com)
  5. Re: Loosing guy wires when hoisting antenna (kq2m at kq2m.com)
  6. Fwd: Re:  Loosing guy wires when hoisting antenna (kq2m at kq2m.com)


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

Message: 1
Date: Fri, 19 Feb 2021 17:37:25 +0000
From: Kevin Adam <n9iww at LIVE.COM>
To: "towertalk at contesting.com" <towertalk at contesting.com>
Subject: [TowerTalk] sell  Brian Beezley ao
Message-ID:
    <DM5PR04MB0891199CF77AEB61319C07949D849 at DM5PR04MB0891.namprd04.prod.outlook.com>
    
Content-Type: text/plain; charset="us-ascii"

sell  buy  software  Brian Beezley ao

N9IWW Kevin adam


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

Message: 2
Date: Fri, 19 Feb 2021 17:23:47 -0500
From: <john at kk9a.com>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] Rohn Tower Pier Pin install
Message-ID: <005d01d7070d$e439c700$acad5500$@com>
Content-Type: text/plain;    charset="us-ascii"

That is a great idea Jon, easier than my waiting for the concrete to
partially set method and hoping that the pin does not sink.

John KK9A


Jon Zaimes AA1K wrote:

The Rohn spec is to leave 4" exposed.
I use a U-bolt to clamp the rod to a piece of aluminum or steel angle that I
place diagonally across the form, checking measurement on the other diagonal
to make sure it is centered. I place this shortly after concrete is poured.
73/Jon

Jon P. Zaimes, AA1K Tower climber for hire http://www.aa1k.us/ Cell:
302-632-2353email: jz73 at verizon.net or aa1k at arrl.net



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

Message: 3
Date: Sat, 20 Feb 2021 08:27:41 -0500
From: Ignacy Misztal <no9e at arrl.net>
To: "tower and HF Antenna Construction Topics."
    <towertalk at contesting.com>
Subject: [TowerTalk] Loosing guy wires when hoisting antenna
Message-ID:
    <CA+yG_kG3BNWa9M-OUUFv8Qr5nmTE7Dv4Dwesd_f4E0Xq0poavg at mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

I am hoisting JK Mid Tri (100 lb) to 65' on a 100' 45G. There are 3 sets of
guy wires at 32', 62' and 95'. I am not clearing one guy at 62'. If I
remove that guy wire, should I loosen the other guy wires at 62', to avoid
potential bending?

Ignacy NO9E


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

Message: 4
Date: Sat, 20 Feb 2021 09:28:57 -0500
From: <john at kk9a.com>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] Loosing guy wires when hoisting antenna
Message-ID: <005701d70794$b9895b60$2c9c1220$@com>
Content-Type: text/plain;    charset="us-ascii"

I do not loosen the opposing guys on my Rohn 55 and Rohn 65 when dropping
one for antenna installation however I am not a tower engineer and cannot
recommend that anyone else do this.

John KK9A



Ignacy Misztal no9e wrote:

I am hoisting JK Mid Tri (100 lb) to 65' on a 100' 45G. There are 3 sets of
guy wires at 32', 62' and 95'. I am not clearing one guy at 62'. If I
remove that guy wire, should I loosen the other guy wires at 62', to avoid
potential bending?

Ignacy NO9E



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

Message: 5
Date: Sat, 20 Feb 2021 10:46:08 -0600
From: kq2m at kq2m.com
To: john at kk9a.com
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Loosing guy wires when hoisting antenna
Message-ID: <50d1f940aaf5b447a36ca5fc508fb508 at kq2m.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed

I would advise against loosening the other guy wires.

What I would suggest you consider is what I have done at my qth:

1) Prepare a temporary guy of the same approximate length as the 
permanent guy.

2) Measure the tension of the existing guy wires to ensure that they are 
correct.

3) Before removing the guy wire at 62', hoist up the antenna to just 
below the guy wire that you want to loosen and tightly secure the 
antenna horizontally from both the boom and mast to the tower.

4) Pull up the temporary guy wire, attach it to the tower about two 
tower rungs below the existing guy wire at 62' and then tighten it to 
approximately the same tension as the existing guy wire and measure the 
tension with a Loos gauge or similar instrument to confirm.

5) Loosen the permanent guy wire - then carefully detach it and 
temporarily attach it about one rung below the temporary guy wire.

6) Hoist the antenna and permanently mount it properly.

7) Pull up and reattach the permanent guy in its usual place and 
properly tension it -  measure the tension with the Loos gauge.

8) Loosen and detach the temporary guy wire and lower it down and remove 
it from the tower.

You're done!  Slowly, and safely.

I have used this method successfully several times at my qth.  Others 
may have different preferred methods of doing the same thing.  Whatever 
you decide to do, please remember to NEVER compromise safety for speed.

73 and GL!

Bob KQ2M


> On 2021-02-20 08:28, john at kk9a.com wrote:
> I do not loosen the opposing guys on my Rohn 55 and Rohn 65 when 
> dropping
> one for antenna installation however I am not a tower engineer and 
> cannot
> recommend that anyone else do this.
> 
> John KK9A
> 
> 
> 
> Ignacy Misztal no9e wrote:
> 
> I am hoisting JK Mid Tri (100 lb) to 65' on a 100' 45G. There are 3 
> sets of
> guy wires at 32', 62' and 95'. I am not clearing one guy at 62'. If I
> remove that guy wire, should I loosen the other guy wires at 62', to 
> avoid
> potential bending?
> 
> Ignacy NO9E
> 


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

Message: 6
Date: Sat, 20 Feb 2021 10:46:50 -0600
From: kq2m at kq2m.com
To: towertalk at contesting.com
Subject: [TowerTalk] Fwd: Re:  Loosing guy wires when hoisting antenna
Message-ID: <1b81261e561c7090677a0a4c9c5fe39e at kq2m.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed



-------- Original Message --------
Subject: Re: [TowerTalk] Loosing guy wires when hoisting antenna
Date: 2021-02-20 10:46
 From: kq2m at kq2m.com
To: john at kk9a.com
Cc: towertalk at contesting.com

I would advise against loosening the other guy wires.

What I would suggest you consider is what I have done at my qth:

1) Prepare a temporary guy of the same approximate length as the 
permanent guy.

2) Measure the tension of the existing guy wires to ensure that they are 
correct.

3) Before removing the guy wire at 62', hoist up the antenna to just 
below the guy wire that you want to loosen and tightly secure the 
antenna horizontally from both the boom and mast to the tower.

4) Pull up the temporary guy wire, attach it to the tower about two 
tower rungs below the existing guy wire at 62' and then tighten it to 
approximately the same tension as the existing guy wire and measure the 
tension with a Loos gauge or similar instrument to confirm.

5) Loosen the permanent guy wire - then carefully detach it and 
temporarily attach it about one rung below the temporary guy wire.

6) Hoist the antenna and permanently mount it properly.

7) Pull up and reattach the permanent guy in its usual place and 
properly tension it -  measure the tension with the Loos gauge.

8) Loosen and detach the temporary guy wire and lower it down and remove 
it from the tower.

You're done!  Slowly, and safely.

I have used this method successfully several times at my qth.  Others 
may have different preferred methods of doing the same thing.  Whatever 
you decide to do, please remember to NEVER compromise safety for speed.

73 and GL!

Bob KQ2M


> On 2021-02-20 08:28, john at kk9a.com wrote:
> I do not loosen the opposing guys on my Rohn 55 and Rohn 65 when 
> dropping
> one for antenna installation however I am not a tower engineer and 
> cannot
> recommend that anyone else do this.
> 
> John KK9A
> 
> 
> 
> Ignacy Misztal no9e wrote:
> 
> I am hoisting JK Mid Tri (100 lb) to 65' on a 100' 45G. There are 3 
> sets of
> guy wires at 32', 62' and 95'. I am not clearing one guy at 62'. If I
> remove that guy wire, should I loosen the other guy wires at 62', to 
> avoid
> potential bending?
> 
> Ignacy NO9E
> 


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

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