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[Antennaware] Re: Antennaware Digest, Vol 9, Issue 2

Subject: [Antennaware] Re: Antennaware Digest, Vol 9, Issue 2
From: "Durwydd MacTara" <>
Date: Tue, 23 Sep 2003 19:59:25 +0000
List-post: <>
I used a "long neck" beer bottle set in concrete for my base. used a long brass screw in a SO-239 and a drilled and tapped hole in the pipe for my feed point. I ran heavy stranded jumper wires from the shell of the SO-239 to a grounding ring made from #4 stranded, to which I soldered my 34' radials.

.105 dia. Grass trimmer line is cheaper than dacron and just as strong!

 "Communications" is a People skill, the rest is technology.
            Durwydd MacTara

Subject: Antennaware Digest, Vol 9, Issue 2
Date: Tue, 23 Sep 2003 12:00:37 -0400 (EDT)

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Today's Topics:

1. 40m vertical questions (Dave N0RQ)


Date: Mon, 22 Sep 2003 15:43:03 -0500
From: "Dave N0RQ" <>
To: <>
Subject: [Antennaware] 40m vertical questions
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Greetings.  I'm getting ready to start my first attempt at a 1/4 wave =
vertical -- for 40 meters.  (Maybe 80m later on.)  Perhaps someone could =
give a few pointers.

I'm thinking of 1" copper pipe for the first 20' and 1/2" or 3/4" for =
the remainder.  I could "guy/dacron" it at the 20' mark if it turns out =
to be necessary.  Is this size copper a bad idea?   (It will have at =
least 4, probably 8 or more elevated radials (over pretty good ground).) =
  Then, how do I tell how long to make it?  For a typical dipole, 468 / =
7.150 gives me a length of 32' 9", but I know the diameter of the pipe =
will affect this -- so how do I compute an good length?  (Good guesses =
are appreciated, too!)

And last questions... what would be a good way to hook the coax to the =
base of the 1" pipe and radials?

Thanks & 73,
Dave N0RQ

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End of Antennaware Digest, Vol 9, Issue 2 *****************************************

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