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

["Durwydd MacTara" <durwydd@hotmail.com>]

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





> From: antennaware-request@contesting.com
> Reply-To: antennaware@contesting.com
> To: antennaware@contesting.com
> Subject: Antennaware Digest, Vol 9, Issue 2
> Date: Tue, 23 Sep 2003 12:00:37 -0400 (EDT)
>
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> Today's Topics:
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>    1. 40m vertical questions (Dave N0RQ)
>
>
> ----------------------------------------------------------------------
>
> Date: Mon, 22 Sep 2003 15:43:03 -0500
> From: "Dave N0RQ" <n0rq-1@dfwair.net>
> To: <antennaware@contesting.com>
> 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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