Comes back and says document not found. Used cut and paste to copy the document
ID. Care to recheck?
- - . . . . . . - - . . . . - - . . - . .
73, Guy
k2av@contesting.com
Apex, NC, USA
----- Original Message -----
From: Jimmy Weierich <kg2au@stny.rr.com>
To: <tcrissman@simplynet.net>; <ka5nez@clarc.org>; <towertalk@contesting.com>
Sent: Monday, October 11, 1999 11:51 PM
Subject: Re: [TowerTalk] Military Grounding Handbook
Go to http://astimage.daps.dla.mil/quicksearch/. This page should
be headed "Tell Us What You Want!". Enter MIL-HDBK-419A in the
"Document ID field. I suggest that you copy and paste to eliminate
typing errors. Click on "Submit".
The next page should be headed "This Is What We Found" and the
"Document ID" entered above should be listed. Click on the document
icon to the left of the "Document ID".
The next page should be headed "ASSIST - Enterprise Access" and
should show the "Document ID" and title of the manual. Click on the
PDF icon below the heading "Media" to download the file.
Jimmy
>It didn't retrieve anything for me...
>Terry
>-----Original Message-----
>From: Jimmy Weierich <kg2au@stny.rr.com>
>To: towertalk@contesting.com <towertalk@contesting.com>
To: <towertalk@contesting.com>
>Date: Monday, October 11, 1999 10:18 PM
>Subject: [TowerTalk] Military Grounding Handbook
>
>
> >
> >This manual is also available online as an Adobe PDF file. Go to
> >http://astimage.daps.dla.mil/quicksearch/ and search for
> >MIL-HDBK-419A in the "Document ID" field.
> >
> >Beware, it is a 9.8 MB file. It took about two minutes to download
> >with a cable modem, slower connections will take considerably longer!
> >(The internet is the only place I run high power.)
> >
> >It includes both Volume 1, Basic Theory, and Volume 2, Applications.
> >However, Volume 2 appears first in the PDF file.
> >
> >Jimmy
> >
> >>Brian (and TT):
> >>
> >> The address and phone number for the Mil Hdbk are:
> >>
> >>Commanding Officer
> >>Naval Publications and Forms Center
> >>5801 Tabor Ave.
> >>Phila., PA 19120
> >>
> >> The phone number in the HDBK, 215-697-3321, rings with no answer. So
> >>you might have to call around via Directory Assistance for another listing
> >>in the Pubs and Forms Center before you can get a human to fill the order
> >>over the phone (as I did earlier this year but I didn't save the number
>that
> >>worked).
> >>
> >>
> >>73 de
> >>Gene Smar AD3F
> >>-----Original Message-----
> >>From: Eric Gustafson <n7cl@mmsi.com>
> >>To: towertalk@contesting.com <towertalk@contesting.com>;
> >>brian_smithson@vds.com <brian_smithson@vds.com>
To: <towertalk@contesting.com>
> >>Date: Monday, October 11, 1999 11:59 AM
> >>Subject: Re: [TowerTalk] newbie, Installing a 80' crank up
> >>
> >>
> >> >
> >> >
> >> >Hi Brian,
> >> >
> >> >I don't think you are asking for trouble per se. But you are
> >> >asking for a requirement that you exercise somewhat more care in
> >> >the design of the ground system.
> >> >
> >> >Only you know what the value and vulnerability of the stuff in
> >> >and around the barn is likely to be. If it is an abandoned
> >> >facility which is unlikely to have animals or personnel in or
> >> >near it during a storm, that is one set of circumstances. If it
> >> >is an active dairy operation which is likely to have people and
> >> >livestock working in the vicinity and valuable production
> >> >equipment in operation, that is another.
> >> >
> >> >The "rule of thumb is ok if no lightning protection effort can be
> >> >tolerated. But it doesn't mean that a tower cannot be safely
> >> >located adjacent to a tall conductive antenna structure.
> >> >
> >> >Buildings located next to towers are routinely lightning
> >> >protected to the degree that the radio station inside the
> >> >building can and does operate right through a direct hit on the
> >> >antenna structure without any damage to the building, equipment,
> >> >or personnel in the vicinity or even any interruption in service.
> >> >There is an FM transmitter south of town here (Tucson, AZ) that
> >> >gets hit an average of twice a day during our monsoon season.
> >> >Probably, the safest possible place in the entire valley for a
> >> >person to be during a summer thunderstorm here is inside that
> >> >transmitter building. It is all a matter of how much attention
> >> >is paid to the lightning protection system requirements.
> >> >
> >> >Start with the PolyPhaser book "Grounds for Lightning and EMP
> >> >Protection". And get a (free) copy of MIL-HDBK-419A Vols. I and
> >> >II. This is by far the best reference on this subject I have
> >> >ever seen. It has both the theoretical basis and practical
> >> >instruction relating to lightning protection. Do some reading.
> >> >Don't stop until you understand the concept of "step potential"
> >> >and how to control its magnitude. Then decide on where you want
> >> >your tower based on the ground system effort required for your
> >> >situation and what you are willing or financially able to do.
> >> >
> >> >73, Eric N7CL
> >
> >Jimmy, KG2AU <kg2au@stny.rr.com>
> >
> >--
> >FAQ on WWW: http://www.contesting.com/towertalkfaq.html
> >Submissions: towertalk@contesting.com
> >Administrative requests: towertalk-REQUEST@contesting.com
> >Problems: owner-towertalk@contesting.com
> >Search: http://www.contesting.com/km9p/search.htm
> >
> >
Jimmy, KG2AU <kg2au@stny.rr.com>
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
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