Re: [Repeater-Builder] Scotchkoat

[Nate Duehr]

Paul Finch wrote:
> Jim,
> 
> One thing, same thing about Radon gas.  What happened to that, it was
> supposed to kill thousands.  Someone made a killing off the test kits.
> Again duped by the news media.  

Not really -- much of the old construction housing built before anyone 
tested for radon typically has a lot of leaks that mix the air pretty 
well in basements, with "unintentional" fresh air.

New construction in areas with high radon levels typically has radon 
mitigation built in (air space under the foundation and a low speed 
circulation fan, a pipe out the roof, and an airflow monitor, usually 
installed in a garage or basement somewhere where the homeowner can 
check on the circulation fan's operation.  I know of hundreds of houses 
in one area here that have these, as part of their original construction.

The dangerous thing to do with radon is to seal up the basement of an 
older house in a high-radon area.  (We have a lot of them here in 
Colorado).  Many people do this to save on heating costs/etc, and raise 
their risk dramatically.  It's an unintended consequence of sealing up 
the house real well for the winter and not moving air around in 
basements and other areas where radon gas will naturally collect if 
allowed to.

It doesn't take much air movement to keep levels low.

Nate WY0X

RE: [Repeater-Builder] Scotchkoat

[Mike Besemer (WM4B)]

More than likely the solvent in question was carbontetrachloride.  That's
what was used prior to my AF time (starting in 1981), when we used PD-680.
We also had trichlorethaline and MEK.  

 

Regardless of the solvent in question, if you like your liver (and other
various parts), you'll wear the appropriate protective gear, avoid the fumes
and use it properly.  

 

Nasty, nasty stuff. all of them.

 

de WM4B

Mike

Kathleen, GA

 

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Brown
Sent: Tuesday, January 08, 2008 12:40 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Scotchkoat

 

Take it seriously when they say something has been
proved to cause cancer. I have a buddy who lost his
leg to cancer and they traced it back to a solvent he
used as a jet engine mechanic in the Air Force. He
managed to live through it, but minus a leg. They
proved beyond a doubt that it was the solvent that
caused the cancer. Sorry I don't remember just which
solvent it was - 

73 - Jim W5ZIT

--- Paul Finch <[EMAIL PROTECTED] <mailto:dpaulfinch%40ntbb.net> > wrote:

> That's why you DON'T get it on your skin any longer.
> Have to tell you
> though, when I was growing up I raced slot cars and
> we had some sticky stuff
> we put on the tires to make them hold better on the
> track. The only thing
> we could find to clean the tires was MEK, I used to
> buy it by the gallon and
> I don't have any problems, except the strange facial
> tic. 
> ((GRIN) that means not really)
> 
> Paul
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> 
> [mailto:Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf
> Of Kris Kirby
> Sent: Tuesday, January 08, 2008 1:13 AM
> To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> 
> Subject: RE: [Repeater-Builder] Scotchkoat
> 
> On Mon, 7 Jan 2008, Paul Finch wrote:
> > Unless it has something like lacquer thinner in it
> there is not a 
> > chance of it working. On upholstery I don't know.
> It depends on what 
> > it is, if it's plastic based I would be very
> careful. If it's a cloth 
> > material I would try the lacquer thinner then the
> MEK. MEK also dries 
> > very fast. Needless to say, try it on a hidden
> piece if upholstery 
> > first.
> 
> Isn't MEK carcinogenic in 52 states and France?
> 
> --
> Kris Kirby, KE4AHR <[EMAIL PROTECTED] <mailto:kris%40catonic.us> >
> But remember, with no superpowers comes no
> responsibility. 
> --rly
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> No virus found in this incoming message.
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> Version: 7.5.516 / Virus Database: 269.17.13/1213 -
> Release Date: 1/7/2008
> 9:14 AM
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__
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<><>

RE: [Repeater-Builder] Scotchkoat

[Paul Finch]

Jim,

One thing, same thing about Radon gas.  What happened to that, it was
supposed to kill thousands.  Someone made a killing off the test kits.
Again duped by the news media.  

Some people get cancer from breathing.

Paul


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Brown
Sent: Tuesday, January 08, 2008 11:40 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Scotchkoat

Take it seriously when they say something has been
proved to cause cancer.  I have a buddy who lost his
leg to cancer and they traced it back to a solvent he
used as a jet engine mechanic in the Air Force.  He
managed to live through it, but minus a leg.  They
proved beyond a doubt that it was the solvent that
caused the cancer.  Sorry I don't remember just which
solvent it was - 

73 - Jim  W5ZIT

--- Paul Finch <[EMAIL PROTECTED]> wrote:

> That's why you DON'T get it on your skin any longer.
>  Have to tell you
> though, when I was growing up I raced slot cars and
> we had some sticky stuff
> we put on the tires to make them hold better on the
> track.  The only thing
> we could find to clean the tires was MEK, I used to
> buy it by the gallon and
> I don’t have any problems, except the strange facial
> tic.  
> ((GRIN) that means not really)
> 
> Paul
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Kris Kirby
> Sent: Tuesday, January 08, 2008 1:13 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: RE: [Repeater-Builder] Scotchkoat
> 
> On Mon, 7 Jan 2008, Paul Finch wrote:
> > Unless it has something like lacquer thinner in it
> there is not a 
> > chance of it working.  On upholstery I don’t know.
>  It depends on what 
> > it is, if it’s plastic based I would be very
> careful.  If it’s a cloth 
> > material I would try the lacquer thinner then the
> MEK.  MEK also dries 
> > very fast.  Needless to say, try it on a hidden
> piece if upholstery 
> > first.
> 
> Isn't MEK carcinogenic in 52 states and France?
> 
> --
> Kris Kirby, KE4AHR  <[EMAIL PROTECTED]>
> But remember, with no superpowers comes no
> responsibility. 
>   --rly
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition. 
> Version: 7.5.516 / Virus Database: 269.17.13/1213 -
> Release Date: 1/7/2008
> 9:14 AM
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> Version: 7.5.516 / Virus Database: 269.17.13/1213 -
> Release Date: 1/7/2008
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> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> (Yahoo! ID required)
> 
> mailto:[EMAIL PROTECTED]
> 
> 
> 



 


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RE: [Repeater-Builder] Scotchkoat

[Jim Brown]

Take it seriously when they say something has been
proved to cause cancer.  I have a buddy who lost his
leg to cancer and they traced it back to a solvent he
used as a jet engine mechanic in the Air Force.  He
managed to live through it, but minus a leg.  They
proved beyond a doubt that it was the solvent that
caused the cancer.  Sorry I don't remember just which
solvent it was - 

73 - Jim  W5ZIT

--- Paul Finch <[EMAIL PROTECTED]> wrote:

> That's why you DON'T get it on your skin any longer.
>  Have to tell you
> though, when I was growing up I raced slot cars and
> we had some sticky stuff
> we put on the tires to make them hold better on the
> track.  The only thing
> we could find to clean the tires was MEK, I used to
> buy it by the gallon and
> I don’t have any problems, except the strange facial
> tic.  
> ((GRIN) that means not really)
> 
> Paul
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Kris Kirby
> Sent: Tuesday, January 08, 2008 1:13 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: RE: [Repeater-Builder] Scotchkoat
> 
> On Mon, 7 Jan 2008, Paul Finch wrote:
> > Unless it has something like lacquer thinner in it
> there is not a 
> > chance of it working.  On upholstery I don’t know.
>  It depends on what 
> > it is, if it’s plastic based I would be very
> careful.  If it’s a cloth 
> > material I would try the lacquer thinner then the
> MEK.  MEK also dries 
> > very fast.  Needless to say, try it on a hidden
> piece if upholstery 
> > first.
> 
> Isn't MEK carcinogenic in 52 states and France?
> 
> --
> Kris Kirby, KE4AHR  <[EMAIL PROTECTED]>
> But remember, with no superpowers comes no
> responsibility. 
>   --rly
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition. 
> Version: 7.5.516 / Virus Database: 269.17.13/1213 -
> Release Date: 1/7/2008
> 9:14 AM
>  
> 
> No virus found in this outgoing message.
> Checked by AVG Free Edition. 
> Version: 7.5.516 / Virus Database: 269.17.13/1213 -
> Release Date: 1/7/2008
> 9:14 AM
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> 
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> 
> 
> 
>  
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> 



  

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Re: [Repeater-Builder] Scotchkoat

[WD7F - John in Tucson]

I buy MEK at Ace is the Place Hardware here in Tucson.  I used it a couple 
weeks ago to clean aluminum facia before painting.  Someone mentioned that 
it evaporates too quickly, however, it as opposed to TCE (which we used very 
lavishly in the radar shop in the USAF back in the 60s.  It's a wonder I 
ain't dead from that.), evaporates much more slowly.  Just wear some 
painters gloves when you use it.

One a side note, Oops is a pretty good product for removing stains.  Have 
you tried that?
de WD7F
John in Tucson

- Original Message - 
From: "Bob M." <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, January 08, 2008 7:58 AM
Subject: RE: [Repeater-Builder] Scotchkoat


It's probably a lot harder to get M-E-K now than it
was when we all grew up. Also, in that era before
everything was found to cause cancer only in
California, who cared about putting their hands in
stuff or letting freon escape into the atmosphere.

Acetone is probably weaker but easily available at
most home improvement stores. If that fails, some
40-grit sand paper will do it, or just wait a week
until the skin and goo falls off.

Bob M.
==
--- Paul Finch <[EMAIL PROTECTED]> wrote:

> That's why you DON'T get it on your skin any longer.
>  Have to tell you
> though, when I was growing up I raced slot cars and
> we had some sticky stuff
> we put on the tires to make them hold better on the
> track.  The only thing
> we could find to clean the tires was MEK, I used to
> buy it by the gallon and
> I don’t have any problems, except the strange facial
> tic.
> ((GRIN) that means not really)
>
> Paul
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Kris Kirby
> Sent: Tuesday, January 08, 2008 1:13 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: RE: [Repeater-Builder] Scotchkoat
>
> On Mon, 7 Jan 2008, Paul Finch wrote:
> > Unless it has something like lacquer thinner in it
> there is not a
> > chance of it working.  On upholstery I don’t know.
>  It depends on what
> > it is, if it’s plastic based I would be very
> careful.  If it’s a cloth
> > material I would try the lacquer thinner then the
> MEK.  MEK also dries
> > very fast.  Needless to say, try it on a hidden
> piece if upholstery
> > first.
>
> Isn't MEK carcinogenic in 52 states and France?


  

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RE: [Repeater-Builder] Scotchkoat

[Bob M.]

It's probably a lot harder to get M-E-K now than it
was when we all grew up. Also, in that era before
everything was found to cause cancer only in
California, who cared about putting their hands in
stuff or letting freon escape into the atmosphere.

Acetone is probably weaker but easily available at
most home improvement stores. If that fails, some
40-grit sand paper will do it, or just wait a week
until the skin and goo falls off.

Bob M.
==
--- Paul Finch <[EMAIL PROTECTED]> wrote:

> That's why you DON'T get it on your skin any longer.
>  Have to tell you
> though, when I was growing up I raced slot cars and
> we had some sticky stuff
> we put on the tires to make them hold better on the
> track.  The only thing
> we could find to clean the tires was MEK, I used to
> buy it by the gallon and
> I don’t have any problems, except the strange facial
> tic.  
> ((GRIN) that means not really)
> 
> Paul
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Kris Kirby
> Sent: Tuesday, January 08, 2008 1:13 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: RE: [Repeater-Builder] Scotchkoat
> 
> On Mon, 7 Jan 2008, Paul Finch wrote:
> > Unless it has something like lacquer thinner in it
> there is not a 
> > chance of it working.  On upholstery I don’t know.
>  It depends on what 
> > it is, if it’s plastic based I would be very
> careful.  If it’s a cloth 
> > material I would try the lacquer thinner then the
> MEK.  MEK also dries 
> > very fast.  Needless to say, try it on a hidden
> piece if upholstery 
> > first.
> 
> Isn't MEK carcinogenic in 52 states and France?


  

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RE: [Repeater-Builder] Scotchkoat

[Paul Finch]

That's why you DON'T get it on your skin any longer.  Have to tell you
though, when I was growing up I raced slot cars and we had some sticky stuff
we put on the tires to make them hold better on the track.  The only thing
we could find to clean the tires was MEK, I used to buy it by the gallon and
I don’t have any problems, except the strange facial tic.  
((GRIN) that means not really)

Paul

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Kris Kirby
Sent: Tuesday, January 08, 2008 1:13 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Scotchkoat

On Mon, 7 Jan 2008, Paul Finch wrote:
> Unless it has something like lacquer thinner in it there is not a 
> chance of it working.  On upholstery I don’t know.  It depends on what 
> it is, if it’s plastic based I would be very careful.  If it’s a cloth 
> material I would try the lacquer thinner then the MEK.  MEK also dries 
> very fast.  Needless to say, try it on a hidden piece if upholstery 
> first.

Isn't MEK carcinogenic in 52 states and France?

--
Kris Kirby, KE4AHR  <[EMAIL PROTECTED]>
But remember, with no superpowers comes no responsibility. 
--rly



 
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RE: [Repeater-Builder] Scotchkoat

[Paul Finch]

MEK will dissolve after sitting in it but it dries so fast it’s hard to keep
wet and besides it’s supposed to be a carcinogen.

 

Been there done that with the goo in the bottom of a bag, you learn real
fast to clean the threads of the can and cap before putting the cap back on.
If there is dried goo on the threads and the can gets turned over in your
bag it softens the hard goo and it just flows out over time.  I always clean
any goo off of the threads with MEK before I put the lid back on, it then
seals OK in any position.  

 

It’s a lot of fun on a dry windy day, makes great looking brown spider webs.

 

Paul

 

 

   _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Daron J. Wilson
Sent: Monday, January 07, 2008 9:40 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Scotchkoat

 

Any one know of any solvents that can be used to remove it?? I have some on
some tools and a spot on my car upholstery (I know, I know) 

I have little spots of that wonderful product on many things, the tops of my
tower boots, a few tools, etc.  One Klein canvas tower bag had bottle of it
spill in the bottom making a wonderful collection of spare nuts and washers
into a mass of goo.  I suspect that any chemical strong enough to soften the
product, will quite likely also dissolve or destroy the upholstery.  I’ve
not looked at the MSDS sheets for it, but the will likely be your best
source for which type of solvent will work the best with it.

Great stuff, wear gloves.

 


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REMEMBER - You can find it on ebaY  


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9:14 AM
 

RE: [Repeater-Builder] Scotchkoat

[Kris Kirby]

On Mon, 7 Jan 2008, Paul Finch wrote:
> Unless it has something like lacquer thinner in it there is not a 
> chance of it working.  On upholstery I don?t know.  It depends on what 
> it is, if it?s plastic based I would be very careful.  If it?s a cloth 
> material I would try the lacquer thinner then the MEK.  MEK also dries 
> very fast.  Needless to say, try it on a hidden piece if upholstery 
> first.

Isn't MEK carcinogenic in 52 states and France?

--
Kris Kirby, KE4AHR  <[EMAIL PROTECTED]>
But remember, with no superpowers comes no responsibility. 
--rly

RE: [Repeater-Builder] Scotchkoat

[Daron J. Wilson]

Any one know of any solvents that can be used to remove it?? I have some on
some tools and a spot on my car upholstery (I know, I know) 

I have little spots of that wonderful product on many things, the tops of my
tower boots, a few tools, etc.  One Klein canvas tower bag had bottle of it
spill in the bottom making a wonderful collection of spare nuts and washers
into a mass of goo.  I suspect that any chemical strong enough to soften the
product, will quite likely also dissolve or destroy the upholstery.  I've
not looked at the MSDS sheets for it, but the will likely be your best
source for which type of solvent will work the best with it.

Great stuff, wear gloves.

RE: [Repeater-Builder] Scotchkoat

[Paul Finch]

Unless it has something like lacquer thinner in it there is not a chance of
it working.  On upholstery I don’t know.  It depends on what it is, if it’s
plastic based I would be very careful.  If it’s a cloth material I would try
the lacquer thinner then the MEK.  MEK also dries very fast.  Needless to
say, try it on a hidden piece if upholstery first.

 

Paul

 

 

   _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Guello
Sent: Monday, January 07, 2008 1:22 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Scotchkoat

 

Try some citrus based solvent.

Scott Zimmerman <[EMAIL PROTECTED]> wrote:

Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it
sticks to you as well as it does the antennas.

 

Any one know of any solvents that can be used to remove it?? I have some on
some tools and a spot on my car upholstery (I know, I know) 

 

Scott

 

Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett Road
Boswell, PA 15531

- Original Message - 

From: HYPERLINK "mailto:[EMAIL PROTECTED]"Paul Finch 

To: HYPERLINK
"mailto:Repeater-Builder@yahoogroups.com"[EMAIL PROTECTED] 

Sent: Sunday, January 06, 2008 9:46 PM

Subject: RE: [Repeater-Builder] New DB-224 w/water cooled phasing harness???

 

Hello All,

 

>From what I have seen the quality is the same but I have been preaching on
this board and others you can’t install a DB antenna without sealing every
screw, bolt, plastic knot, connector and anything else that could leak
water.  Besides that you must take all connections to the harness and
tighten all screws before you seal it.  Once you do that the antenna may
possibly outlive most people on this board.  I have a DB-410 in downtown
Fort Worth that I installed in 1976 and it still has flat SWR.

 

Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it
sticks to you as well as it does the antennas.

 

Paul

 

 


   _  


From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Allred
Sent: Sunday, January 06, 2008 7:40 PM
To: [EMAIL PROTECTED]
Subject: Re: [Repeater-Builder] New DB-224 w/water cooled phasing harness???

 

YES!

Recently replaced a new DB-224 that had wicked water in the molded harness
section and ended up inside the connector. Upon receiving a replacement
antenna, we sealed the heck out of the harness with vapor wrap before
installation. This one seems to be holding up for now, for now knock on
wood. The local PD did not like a water logged antenna! 

 

What happened to DB's quality? Upon inspection of the old one, it seems as
though the "glue" that was suppose to be keeping the water out was not only
sparsely applied but was also very brittle. Any movement of the harness
would crack the glue resulting in a potential place for water to enter the
harness.

 

Steve / K6SCA



kc4wdi <[EMAIL PROTECTED]> wrote:

We have installed several new db-224 recently. This particular antenna 
was inverted and has been in service less than 6 months.

While doing a routine test, I noticed the ref. power was a little 
high. The longer the TX was up, the lower the ref. power got; which 
typically indicates water in a connector or cable.

We found water in the connector at the center of the antenna. It DID 
NOT come through/around the weather seal!

The harness was carefully disassembled. Water (and corrosion) was 
found in the molded junction above the center connection.

Has anyone seen this before? Has the quality slipped that much on 
the new db-224's?

Any feedback is greatly appreciated!

 

  


   _  


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REMEMBER - You can find it on ebaY

 

 

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11:46 AM

 

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9:14 AM

 

  

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RE: Re: [Repeater-Builder] Scotchkoat

[Paul Finch]

Chuck,

The best thing to thin it with is MEK (Methyl Ethel Keytone).  You can take
a can that's almost dried up and restore it to a useable substance.  Acetone
will clean it off your hands somewhat but dries almost to fast.  I found
that lacquer thinner works a little better because it does not dry as fast
but most people don't keep either of those items on their truck.

Paul


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, January 07, 2008 1:18 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: Re: [Repeater-Builder] Scotchkoat

Seems like I remember acetone works. Try it on something unimportant first.

Chuck
WB2EDV



--- Original Message ---
>From: Scott Zimmerman[mailto:[EMAIL PROTECTED]
Sent: 1/7/2008 12:05:05 PM
To  : Repeater-Builder@yahoogroups.com
Cc  : 
Subject : RE: Re: [Repeater-Builder] Scotchkoat

 Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it
sticks to you as well as 
it does the antennas.



Any one know of any solvents that can be used to remove it?? I have some on
some tools and a spot 
on my car upholstery (I know, I know) 



Scott



Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett Road
Boswell, PA 15531

  - Original Message - 
  From: Paul Finch 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 06, 2008 9:46 PM
  Subject: RE: [Repeater-Builder] New DB-224 w/water cooled phasing
harness???


  Hello All,

   

  From what I have seen the quality is the same but I have been preaching on
this board and others 
you can’t install a DB antenna without sealing every screw, bolt, plastic
knot, connector and 
anything else that could leak water.  Besides that you must take all
connections to the harness 
and tighten all screws before you seal it.  Once you do that the antenna may
possibly outlive most 
people on this board.  I have a DB-410 in downtown Fort Worth that I
installed in 1976 and it 
still has flat SWR.

   

  Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it
sticks to you as well as 
it does the antennas.

   

  Paul

   

   



--

  From: Repeater-Builder@yahoogroups.com [
mailto:[EMAIL PROTECTED]  On Behalf Of 
Steve Allred
  Sent: Sunday, January 06, 2008 7:40 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] New DB-224 w/water cooled phasing
harness???

   

  YES!

  Recently replaced a new DB-224 that had wicked water in the molded harness
section and ended up 
inside the connector. Upon receiving a replacement antenna, we sealed the
heck out of the harness 
with vapor wrap before installation. This one seems to be holding up for
now, for now knock on 
wood. The local PD did not like a water logged antenna! 

   

  What happened to DB's quality? Upon inspection of the old one, it seems as
though the "glue" 
that was suppose to be keeping the water out was not only sparsely applied
but was also very 
brittle. Any movement of the harness would crack the glue resulting in a
potential place for water 
to enter the harness.

   

  Steve / K6SCA



  kc4wdi <[EMAIL PROTECTED]> wrote:

We have installed several new db-224 recently. This particular antenna 
was inverted and has been in service less than 6 months.

While doing a routine test, I noticed the ref. power was a little 
high. The longer the TX was up, the lower the ref. power got; which 
typically indicates water in a connector or cable.

We found water in the connector at the center of the antenna. It DID 
NOT come through/around the weather seal!

The harness was carefully disassembled. Water (and corrosion) was 
found in the molded junction above the center connection.

Has anyone seen this before? Has the quality slipped that much on 
the new db-224's?

Any feedback is greatly appreciated!

   





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11:46 AM




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11:46 AM



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9:14 AM






 
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RE: [Repeater-Builder] Scotchkoat

[Barry C']

Any of the  usual shop thinner will remove it from metal tools , as for the car 
I suggest a spot test first or you might do some real damage.. next time >drop 
sheet :)

To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Mon, 7 Jan 2008 12:05:05 -0500
Subject: Re: [Repeater-Builder] Scotchkoat
















  







Use Scotchkoat from 3M 
to seal the antennas but don’t get it on you, it sticks to you as well as it 
does the antennas.
 
Any one know of any solvents that can be used to remove it?? 
I have some on some tools and a spot on my car upholstery (I know, I know) 

 
Scott
 
Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett 
Road
Boswell, PA 15531

  - Original Message - 
  From: 
  Paul Finch 
  
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Sunday, January 06, 2008 9:46 
  PM
  Subject: RE: [Repeater-Builder] New 
  DB-224 w/water cooled phasing harness???
  

  
  Hello 
  All,
   
  From what I have seen 
  the quality is the same but I have been preaching on this board and others 
you 
  can’t install a DB antenna without sealing every screw, bolt, plastic knot, 
  connector and anything else that could leak water.  Besides that you must 
  take all connections to the harness and tighten all screws before you seal 
it. 
   Once you do that the antenna may possibly outlive most people on this 
  board.  I have a DB-410 in downtown Fort Worth that I installed in 1976 and 
it 
  still has flat SWR.
   
  Use Scotchkoat from 
  3M to seal the antennas but don’t get it on you, it sticks to you as well as 
  it does the antennas.
   
  Paul
   
   
  
  
  
  
  From: 
  Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] 
  On Behalf Of Steve 
  Allred
Sent: Sunday, January 
  06, 2008 7:40 PM
To: 
  Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] New 
  DB-224 w/water cooled phasing harness???
   
  
  YES!
  
  Recently replaced a new DB-224 that had wicked water 
  in the molded harness section and ended up inside the connector. Upon 
  receiving a replacement antenna, we sealed the heck out of the harness with 
  vapor wrap before installation. This one seems to be holding up for now, for 
  now knock on wood. The local PD did not like a water logged 
  antenna! 
  
   
  
  What happened to DB's quality? Upon inspection of the 
  old one, it seems as though the "glue" that was suppose to be keeping the 
  water out was not only sparsely applied but was also very brittle. Any 
  movement of the harness would crack the glue resulting in a potential place 
  for water to enter the harness.
  
   
  
  Steve / K6SCA
  
  

kc4wdi 
  <[EMAIL PROTECTED]> 
  wrote:
  


We have installed several new db-224 
recently. This particular antenna 
was inverted and has been in service 
less than 6 months.

While doing a routine test, I noticed the ref. 
power was a little 
high. The longer the TX was up, the lower the ref. 
power got; which 
typically indicates water in a connector or 
cable.

We found water in the connector at the center of the antenna. 
It DID 
NOT come through/around the weather seal!

The harness was 
carefully disassembled. Water (and corrosion) was 
found in the molded 
junction above the center connection.

Has anyone seen this before? 
Has the quality slipped that much on 
the new db-224's?

Any 
feedback is greatly 
  appreciated!
   

  
  
  
  
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  them fast with Yahoo! Search. 
  
  


  
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  Free Edition.
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  Date: 1/5/2008 11:46 AM


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Checked by AVG 
  Free Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1210 - Release 
  Date: 1/5/2008 11:46 AM


  


  REMEMBER 
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  Edition. 
Version: 7.5.516 / Virus Database: 269.17.13/1213 - Release Date: 
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Re: [Repeater-Builder] Scotchkoat

[Bob M.]

I just pulled the MSDS for ScotchKote (note the
official 3M spelling of the product).

It contains acetone, toluene, and M-E-K, among other
nasty chemicals. So at least some of those should help
soften it and remove it from unwanted surfaces.

Goof Off contains primarily xylene.

Bob M.
==
--- "Bob M." <[EMAIL PROTECTED]> wrote:

> Actually, Goof Off is rather safe on hands, probably
> more so than acetone. It's like high-strength
> lighter
> fluid. Between that, alcohol, and acetone, something
> will make a dent in Scotchkoat.
> 
> Yes, Home Depot sells it in various sizes, and it
> looks just like an old lighter fluid can. It also
> does
> wonders for removing sticky labels from plastic pill
> bottles, rendering them useful for holding other
> small
> parts.
> 
> Bob M.
> ==
> --- Tony Faiola <[EMAIL PROTECTED]> wrote:
> 
> > Hello Scott:
> > 
> > I have used Scotchkoat a few weeks ago on my 10
> > meter yagi. To get the 
> > stuff offanything else, I use Goof Off, the
> ultimate
> > remover! I think it 
> > was purchased at home depot or Lowe's.  It may
> take
> > the skin off your hands!
> > 
> > Tony, K3WX
> > 
> > Scott Zimmerman wrote:
> > > Use Scotchkoat from 3M to seal the antennas but
> > don’t get it on you, it 
> > > sticks to you as well as it does the antennas.
> > > 
> > >  
> > > 
> > > Any one know of any solvents that can be used to
> > remove it?? I have some 
> > > on some tools and a spot on my car upholstery (I
> > know, I know)
> > > 
> > >  
> > > 
> > > Scott
> > > 
> > >  
> > > 
> > > Scott Zimmerman
> > > Amateur Radio Call N3XCC
> > > 612 Barnett Road
> > > Boswell, PA 15531
> > > 
> > > - Original Message -
> > > From: Paul Finch
> 
> > > To: Repeater-Builder@yahoogroups.com
> > > 
> > > Sent: Sunday, January 06, 2008 9:46 PM
> > > Subject: RE: [Repeater-Builder] New DB-224
> > w/water cooled phasing
> > > harness???
> > > 
> > > Hello All,
> > > 
> > >  
> > > 
> > >  From what I have seen the quality is the
> same
> > but I have been
> > > preaching on this board and others you can’t
> > install a DB antenna
> > > without sealing every screw, bolt, plastic
> > knot, connector and
> > > anything else that could leak water. 
> Besides
> > that you must take all
> > > connections to the harness and tighten all
> > screws before you seal
> > > it.  Once you do that the antenna may
> possibly
> > outlive most people
> > > on this board.  I have a DB-410 in downtown
> > Fort Worth that I
> > > installed in 1976 and it still has flat SWR.
> > > 
> > >  
> > > 
> > > Use Scotchkoat from 3M to seal the antennas
> > but don’t get it on you,
> > > it sticks to you as well as it does the
> > antennas.
> > > 
> > >  
> > > 
> > > Paul
> > > 
> > >  
> > > 
> > >  
> > > 
> > >
> >
>

> > > 
> > > From: Repeater-Builder@yahoogroups.com
> > > [mailto:[EMAIL PROTECTED] On
> > Behalf Of Steve Allred
> > > Sent: Sunday, January 06, 2008 7:40 PM
> > > To: Repeater-Builder@yahoogroups.com
> > > Subject: Re: [Repeater-Builder] New DB-224
> > w/water cooled phasing
> > > harness???
> > > 
> > >  
> > > 
> > > YES!
> > > 
> > > Recently replaced a new DB-224 that had
> wicked
> > water in the molded
> > > harness section and ended up inside the
> > connector. Upon receiving a
> > > replacement antenna, we sealed the heck out
> of
> > the harness with
> > > vapor wrap before installation. This one
> seems
> > to be holding up for
> > > now, for now knock on wood. The local PD did
> > not like a water logged
> > > antenna! 
> > > 
> > >  
> > > 
> > > What happened to DB's quality? Upon
> inspection
> > of the old one, it
> > > seems as though the "glue" that was suppose
> to
> > be keeping the water
> > > out was not only sparsely applied but was
> also
> > very brittle. Any
> > > movement of the harness would crack the glue
> > resulting in a
> > > potential place for water to enter the
> > harness.
> > > 
> > >  
> > > 
> > > Steve / K6SCA
> > > 
> > > 
> > > 
> > > kc4wdi <[EMAIL PROTECTED]>  wrote:
> > > 
> > > We have installed several new db-224
> > recently. This particular
> > > antenna
> > > was inverted and has been in service
> less
> > than 6 months.
> > > 
> > > While doing a routine test, I noticed
> the
> > ref. power was a little
> > > high. The longer the TX was up, the
> lower
> > the ref. power got; which
> > > typically indicates water in a connector
> > or cable.
> > > 
> > > We found water in the connector at the
> > center of the antenna. It
> > > DID
> > > NOT come through/around the weather
> seal!
> > > 
> > > The harness was carefully disassembled.

Re: [Repeater-Builder] Scotchkoat

[Bob M.]

Actually, Goof Off is rather safe on hands, probably
more so than acetone. It's like high-strength lighter
fluid. Between that, alcohol, and acetone, something
will make a dent in Scotchkoat.

Yes, Home Depot sells it in various sizes, and it
looks just like an old lighter fluid can. It also does
wonders for removing sticky labels from plastic pill
bottles, rendering them useful for holding other small
parts.

Bob M.
==
--- Tony Faiola <[EMAIL PROTECTED]> wrote:

> Hello Scott:
> 
> I have used Scotchkoat a few weeks ago on my 10
> meter yagi. To get the 
> stuff offanything else, I use Goof Off, the ultimate
> remover! I think it 
> was purchased at home depot or Lowe's.  It may take
> the skin off your hands!
> 
> Tony, K3WX
> 
> Scott Zimmerman wrote:
> > Use Scotchkoat from 3M to seal the antennas but
> don’t get it on you, it 
> > sticks to you as well as it does the antennas.
> > 
> >  
> > 
> > Any one know of any solvents that can be used to
> remove it?? I have some 
> > on some tools and a spot on my car upholstery (I
> know, I know)
> > 
> >  
> > 
> > Scott
> > 
> >  
> > 
> > Scott Zimmerman
> > Amateur Radio Call N3XCC
> > 612 Barnett Road
> > Boswell, PA 15531
> > 
> > - Original Message -
> > From: Paul Finch 
> > To: Repeater-Builder@yahoogroups.com
> > 
> > Sent: Sunday, January 06, 2008 9:46 PM
> > Subject: RE: [Repeater-Builder] New DB-224
> w/water cooled phasing
> > harness???
> > 
> > Hello All,
> > 
> >  
> > 
> >  From what I have seen the quality is the same
> but I have been
> > preaching on this board and others you can’t
> install a DB antenna
> > without sealing every screw, bolt, plastic
> knot, connector and
> > anything else that could leak water.  Besides
> that you must take all
> > connections to the harness and tighten all
> screws before you seal
> > it.  Once you do that the antenna may possibly
> outlive most people
> > on this board.  I have a DB-410 in downtown
> Fort Worth that I
> > installed in 1976 and it still has flat SWR.
> > 
> >  
> > 
> > Use Scotchkoat from 3M to seal the antennas
> but don’t get it on you,
> > it sticks to you as well as it does the
> antennas.
> > 
> >  
> > 
> > Paul
> > 
> >  
> > 
> >  
> > 
> >
>

> > 
> > From: Repeater-Builder@yahoogroups.com
> > [mailto:[EMAIL PROTECTED] On
> Behalf Of Steve Allred
> > Sent: Sunday, January 06, 2008 7:40 PM
> > To: Repeater-Builder@yahoogroups.com
> > Subject: Re: [Repeater-Builder] New DB-224
> w/water cooled phasing
> > harness???
> > 
> >  
> > 
> > YES!
> > 
> > Recently replaced a new DB-224 that had wicked
> water in the molded
> > harness section and ended up inside the
> connector. Upon receiving a
> > replacement antenna, we sealed the heck out of
> the harness with
> > vapor wrap before installation. This one seems
> to be holding up for
> > now, for now knock on wood. The local PD did
> not like a water logged
> > antenna! 
> > 
> >  
> > 
> > What happened to DB's quality? Upon inspection
> of the old one, it
> > seems as though the "glue" that was suppose to
> be keeping the water
> > out was not only sparsely applied but was also
> very brittle. Any
> > movement of the harness would crack the glue
> resulting in a
> > potential place for water to enter the
> harness.
> > 
> >  
> > 
> > Steve / K6SCA
> > 
> > 
> > 
> > kc4wdi <[EMAIL PROTECTED]>  wrote:
> > 
> > We have installed several new db-224
> recently. This particular
> > antenna
> > was inverted and has been in service less
> than 6 months.
> > 
> > While doing a routine test, I noticed the
> ref. power was a little
> > high. The longer the TX was up, the lower
> the ref. power got; which
> > typically indicates water in a connector
> or cable.
> > 
> > We found water in the connector at the
> center of the antenna. It
> > DID
> > NOT come through/around the weather seal!
> > 
> > The harness was carefully disassembled.
> Water (and corrosion) was
> > found in the molded junction above the
> center connection.
> > 
> > Has anyone seen this before? Has the
> quality slipped that much on
> > the new db-224's?
> > 
> > Any feedback is greatly appreciated!


  

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Re: [Repeater-Builder] Scotchkoat

[Tony Faiola]

Hello Scott:

I have used Scotchkoat a few weeks ago on my 10 meter yagi. To get the 
stuff offanything else, I use Goof Off, the ultimate remover! I think it 
was purchased at home depot or Lowe's.  It may take the skin off your hands!

Tony, K3WX

Scott Zimmerman wrote:
> Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it 
> sticks to you as well as it does the antennas.
> 
>  
> 
> Any one know of any solvents that can be used to remove it?? I have some 
> on some tools and a spot on my car upholstery (I know, I know)
> 
>  
> 
> Scott
> 
>  
> 
> Scott Zimmerman
> Amateur Radio Call N3XCC
> 612 Barnett Road
> Boswell, PA 15531
> 
> - Original Message -
> From: Paul Finch 
> To: Repeater-Builder@yahoogroups.com
> 
> Sent: Sunday, January 06, 2008 9:46 PM
> Subject: RE: [Repeater-Builder] New DB-224 w/water cooled phasing
> harness???
> 
> Hello All,
> 
>  
> 
>  From what I have seen the quality is the same but I have been
> preaching on this board and others you can’t install a DB antenna
> without sealing every screw, bolt, plastic knot, connector and
> anything else that could leak water.  Besides that you must take all
> connections to the harness and tighten all screws before you seal
> it.  Once you do that the antenna may possibly outlive most people
> on this board.  I have a DB-410 in downtown Fort Worth that I
> installed in 1976 and it still has flat SWR.
> 
>  
> 
> Use Scotchkoat from 3M to seal the antennas but don’t get it on you,
> it sticks to you as well as it does the antennas.
> 
>  
> 
> Paul
> 
>  
> 
>  
> 
> 
> 
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf Of Steve Allred
> Sent: Sunday, January 06, 2008 7:40 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: Re: [Repeater-Builder] New DB-224 w/water cooled phasing
> harness???
> 
>  
> 
> YES!
> 
> Recently replaced a new DB-224 that had wicked water in the molded
> harness section and ended up inside the connector. Upon receiving a
> replacement antenna, we sealed the heck out of the harness with
> vapor wrap before installation. This one seems to be holding up for
> now, for now knock on wood. The local PD did not like a water logged
> antenna! 
> 
>  
> 
> What happened to DB's quality? Upon inspection of the old one, it
> seems as though the "glue" that was suppose to be keeping the water
> out was not only sparsely applied but was also very brittle. Any
> movement of the harness would crack the glue resulting in a
> potential place for water to enter the harness.
> 
>  
> 
> Steve / K6SCA
> 
> 
> 
> kc4wdi <[EMAIL PROTECTED]>  wrote:
> 
> We have installed several new db-224 recently. This particular
> antenna
> was inverted and has been in service less than 6 months.
> 
> While doing a routine test, I noticed the ref. power was a little
> high. The longer the TX was up, the lower the ref. power got; which
> typically indicates water in a connector or cable.
> 
> We found water in the connector at the center of the antenna. It
> DID
> NOT come through/around the weather seal!
> 
> The harness was carefully disassembled. Water (and corrosion) was
> found in the molded junction above the center connection.
> 
> Has anyone seen this before? Has the quality slipped that much on
> the new db-224's?
> 
> Any feedback is greatly appreciated!
> 
>  
> 
>  
> 
> 
> 
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> 1/7/2008 9:

Re: [Repeater-Builder] Scotchkoat

[Paul Guello]

Try some citrus based solvent.

Scott Zimmerman <[EMAIL PROTECTED]> wrote:  
 Use Scotchkoat from 3M  to seal the antennas but don’t get it on you, it 
sticks to you as well as it  does the antennas.
  
 Any one know of any solvents that can be used to remove it??  I have some on 
some tools and a spot on my car upholstery (I know, I know)  
  
 Scott
  
 Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett  Road
Boswell, PA 15531

- Original Message - 
   From:Paul Finch
   To: Repeater-Builder@yahoogroups.com
   Sent: Sunday, January 06, 2008 9:46PM
   Subject: RE: [Repeater-Builder] NewDB-224 w/water cooled phasing 
harness???
   

  HelloAll,

   From what I have seenthe quality is the same but I have been preaching 
on this board and others youcan’t install a DB antenna without sealing 
every screw, bolt, plastic knot,connector and anything else that could leak 
water.  Besides that you musttake all connections to the harness and 
tighten all screws before you seal it. Once you do that the antenna may 
possibly outlive most people on thisboard.  I have a DB-410 in downtown 
Fort Worth that I installed in 1976 and itstill has flat SWR.

   Use Scotchkoat from3M to seal the antennas but don’t get it on you, it 
sticks to you as well asit does the antennas.

   Paul


 
-
   
   From:Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED]On 
Behalf Of SteveAllred
Sent: Sunday, January06, 2008 7:40 PM
To:Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] NewDB-224 w/water cooled phasing harness???


  YES!

  Recently replaced a new DB-224 that had wicked waterin the molded 
harness section and ended up inside the connector. Uponreceiving a 
replacement antenna, we sealed the heck out of the harness withvapor wrap 
before installation. This one seems to be holding up for now, fornow knock 
on wood. The local PD did not like a water loggedantenna! 

   

  What happened to DB's quality? Upon inspection of theold one, it 
seems as though the "glue" that was suppose to be keeping thewater out was 
not only sparsely applied but was also very brittle. Anymovement of the 
harness would crack the glue resulting in a potential placefor water to 
enter the harness.

   

  Steve / K6SCA

  

kc4wdi<[EMAIL PROTECTED]>wrote:

  We have installed several new db-224  recently. This 
particular antenna 
was inverted and has been in service  less than 6 months.

While doing a routine test, I noticed the ref.  power was a little 
high. The longer the TX was up, the lower the ref.  power got; which 
typically indicates water in a connector or  cable.

We found water in the connector at the center of the antenna.  It DID 
NOT come through/around the weather seal!

The harness was  carefully disassembled. Water (and corrosion) was 
found in the molded  junction above the center connection.

Has anyone seen this before?  Has the quality slipped that much on 
the new db-224's?

Any  feedback is greatlyappreciated!




  
-
   
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Search. 
REMEMBER  - You can find it onebaY



 
   No virus found in this incoming message.
Checked by AVGFree Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1210 - ReleaseDate: 1/5/2008 
11:46 AM


   No virus found in this outgoing message.
Checked by AVGFree Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1210 - ReleaseDate: 1/5/2008 
11:46 AM


REMEMBER  - You can find it on ebaY  

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No virus found in this incoming message.
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Version: 7.5.516 / Virus Database: 269.17.13/1213 - Release Date:1/7/2008 
9:14 AM
 
 
   

   
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Looking for last minute shopping deals?  Find them fast with Yahoo! Search.

RE: Re: [Repeater-Builder] Scotchkoat

[[EMAIL PROTECTED]]

Seems like I remember acetone works. Try it on something unimportant first.

Chuck
WB2EDV



--- Original Message ---
>From: Scott Zimmerman[mailto:[EMAIL PROTECTED]
Sent: 1/7/2008 12:05:05 PM
To  : Repeater-Builder@yahoogroups.com
Cc  : 
Subject : RE: Re: [Repeater-Builder] Scotchkoat

 Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it sticks 
to you as well as 
it does the antennas.



Any one know of any solvents that can be used to remove it?? I have some on 
some tools and a spot 
on my car upholstery (I know, I know) 



Scott



Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett Road
Boswell, PA 15531

  - Original Message - 
  From: Paul Finch 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 06, 2008 9:46 PM
  Subject: RE: [Repeater-Builder] New DB-224 w/water cooled phasing harness???


  Hello All,

   

  From what I have seen the quality is the same but I have been preaching on 
this board and others 
you can’t install a DB antenna without sealing every screw, bolt, plastic knot, 
connector and 
anything else that could leak water.  Besides that you must take all 
connections to the harness 
and tighten all screws before you seal it.  Once you do that the antenna may 
possibly outlive most 
people on this board.  I have a DB-410 in downtown Fort Worth that I installed 
in 1976 and it 
still has flat SWR.

   

  Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it 
sticks to you as well as 
it does the antennas.

   

  Paul

   

   


--

  From: Repeater-Builder@yahoogroups.com [ mailto:[EMAIL PROTECTED]  On Behalf 
Of 
Steve Allred
  Sent: Sunday, January 06, 2008 7:40 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] New DB-224 w/water cooled phasing harness???

   

  YES!

  Recently replaced a new DB-224 that had wicked water in the molded harness 
section and ended up 
inside the connector. Upon receiving a replacement antenna, we sealed the heck 
out of the harness 
with vapor wrap before installation. This one seems to be holding up for now, 
for now knock on 
wood. The local PD did not like a water logged antenna! 

   

  What happened to DB's quality? Upon inspection of the old one, it seems as 
though the "glue" 
that was suppose to be keeping the water out was not only sparsely applied but 
was also very 
brittle. Any movement of the harness would crack the glue resulting in a 
potential place for water 
to enter the harness.

   

  Steve / K6SCA



  kc4wdi <[EMAIL PROTECTED]> wrote:

We have installed several new db-224 recently. This particular antenna 
was inverted and has been in service less than 6 months.

While doing a routine test, I noticed the ref. power was a little 
high. The longer the TX was up, the lower the ref. power got; which 
typically indicates water in a connector or cable.

We found water in the connector at the center of the antenna. It DID 
NOT come through/around the weather seal!

The harness was carefully disassembled. Water (and corrosion) was 
found in the molded junction above the center connection.

Has anyone seen this before? Has the quality slipped that much on 
the new db-224's?

Any feedback is greatly appreciated!

   




--

  Looking for last minute shopping deals? Find them fast with Yahoo! Search. 

REMEMBER - You can find it on ebaY
   

   

   

  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.516 / Virus Database: 269.17.13/1210 - Release Date: 1/5/2008 
11:46 AM




  No virus found in this outgoing message.
  Checked by AVG Free Edition.
  Version: 7.5.516 / Virus Database: 269.17.13/1210 - Release Date: 1/5/2008 
11:46 AM



REMEMBER - You can find it on ebaY 



--


  No virus found in this incoming message.
  Checked by AVG Free Edition. 
  Version: 7.5.516 / Virus Database: 269.17.13/1213 - Release Date: 1/7/2008 
9:14 AM

Re: [Repeater-Builder] Scotchkoat

[Scott Zimmerman]

Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it sticks 
to you as well as it does the antennas.



Any one know of any solvents that can be used to remove it?? I have some on 
some tools and a spot on my car upholstery (I know, I know) 



Scott



Scott Zimmerman 
Amateur Radio Call N3XCC
612 Barnett Road
Boswell, PA 15531

  - Original Message - 
  From: Paul Finch 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 06, 2008 9:46 PM
  Subject: RE: [Repeater-Builder] New DB-224 w/water cooled phasing harness???


  Hello All,

   

  From what I have seen the quality is the same but I have been preaching on 
this board and others you can’t install a DB antenna without sealing every 
screw, bolt, plastic knot, connector and anything else that could leak water.  
Besides that you must take all connections to the harness and tighten all 
screws before you seal it.  Once you do that the antenna may possibly outlive 
most people on this board.  I have a DB-410 in downtown Fort Worth that I 
installed in 1976 and it still has flat SWR.

   

  Use Scotchkoat from 3M to seal the antennas but don’t get it on you, it 
sticks to you as well as it does the antennas.

   

  Paul

   

   


--

  From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of 
Steve Allred
  Sent: Sunday, January 06, 2008 7:40 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] New DB-224 w/water cooled phasing harness???

   

  YES!

  Recently replaced a new DB-224 that had wicked water in the molded harness 
section and ended up inside the connector. Upon receiving a replacement 
antenna, we sealed the heck out of the harness with vapor wrap before 
installation. This one seems to be holding up for now, for now knock on wood. 
The local PD did not like a water logged antenna! 

   

  What happened to DB's quality? Upon inspection of the old one, it seems as 
though the "glue" that was suppose to be keeping the water out was not only 
sparsely applied but was also very brittle. Any movement of the harness would 
crack the glue resulting in a potential place for water to enter the harness.

   

  Steve / K6SCA



  kc4wdi <[EMAIL PROTECTED]> wrote:

We have installed several new db-224 recently. This particular antenna 
was inverted and has been in service less than 6 months.

While doing a routine test, I noticed the ref. power was a little 
high. The longer the TX was up, the lower the ref. power got; which 
typically indicates water in a connector or cable.

We found water in the connector at the center of the antenna. It DID 
NOT come through/around the weather seal!

The harness was carefully disassembled. Water (and corrosion) was 
found in the molded junction above the center connection.

Has anyone seen this before? Has the quality slipped that much on 
the new db-224's?

Any feedback is greatly appreciated!

   




--

  Looking for last minute shopping deals? Find them fast with Yahoo! Search. 

REMEMBER - You can find it on ebaY
   

   

   

  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.516 / Virus Database: 269.17.13/1210 - Release Date: 1/5/2008 
11:46 AM




  No virus found in this outgoing message.
  Checked by AVG Free Edition.
  Version: 7.5.516 / Virus Database: 269.17.13/1210 - Release Date: 1/5/2008 
11:46 AM



REMEMBER - You can find it on ebaY 



--


  No virus found in this incoming message.
  Checked by AVG Free Edition. 
  Version: 7.5.516 / Virus Database: 269.17.13/1213 - Release Date: 1/7/2008 
9:14 AM