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Re: [TowerTalk] Radials - What is the big deal?

To: Gedas <w8bya@mchsi.com>
Subject: Re: [TowerTalk] Radials - What is the big deal?
From: David Jordan <wa3gin@erols.com>
Date: Tue, 03 Apr 2007 10:00:59 -0400
List-post: <mailto:towertalk@contesting.com>
The new ham isn't brain dead...he just bought his rig last week and 
wanted to get on the air ASAP.  I'm sure he'll figure out much of this 
stuff without me spoon feeding him. 

It seems to me that half the fun of this hobby is learning and 
experimenting.  Why would I want to rob him of that experience. If he 
has questions I'll answer them for him.  Clearly, just about all the 
questions have answers.  But why take all the excitement out of it for 
him.  No, I'll let him discover the magic of radio at his own pace and 
mentor when requested...I've seen too many hams get into over drive...do 
it all to perfection, get bored with it and move on to photography or 
flying, etc.  Look at the K4JA station in VA (www.k4ja.com).  Massive 
installation, done by professionals, lasted about four years and then he 
sold it all and went into drag racing.

Enjoy the magic,
dave
wa3gin

Gedas wrote:

>Hi Dave, that shows you that even the braid on the coax going back to the 
>shack can serve as a radial and help out verticals like this one.  Someplace 
>buried in a shelf around here I have an old report done by the Navy on the 
>directivity and gain of HF verticals with very, very long radials placed in 
>narrow sectors (directions).  It was pretty neat, esp when I was a young ham 
>just starting out to see just how directive these antennas can be.  If I 
>remember right, the tests were performed in Antarctica.  You might want to 
>tell the new ham that by adding a couple more radials he can make working DX 
>even easier.
>73
>Gedas, W8BYA
>
>http://gedas.cc
>www.w8bya.com
>
>----- Original Message ----- 
>From: "WA3GIN" <wa3gin@erols.com>
>To: "James Duffey" <JamesDuffey@comcast.net>; <towertalk@contesting.com>
>Cc: <k5uj@hotmail.com>; "James Duffey" <JamesDuffey@comcast.net>
>Sent: Sunday, April 01, 2007 2:30 PM
>Subject: Re: [TowerTalk] Radials - What is the big deal?
>
>
>HAHA,
>
>Yesterday I received an email from a "new" general class that just upgraded
>from tech.  He has been trying to work stations using a slinky antenna in
>his attack but didn't have any luck at all.  I gave him a Hustler 4BTV
>vertical.  He put it up in his back yard on a post with no radials.  Turned
>on his FT897 and proceeded to work Germany on 40 SSB.  The fella is very
>excited and thrilled about his DX performance on his first attempt at HF.
>He doesn't know anything about near field or far field radials systems and
>he is haveing a blast on HF with the vertical that radiates equally poorly
>in all directions.
>
>Have Fun,
>dave
>wa3gin
>
>Performance is in the eye of the beholder.
>----- Original Message ----- 
>From: "James Duffey" <JamesDuffey@comcast.net>
>To: <towertalk@contesting.com>
>Cc: <k5uj@hotmail.com>; "James Duffey" <JamesDuffey@comcast.net>
>Sent: Sunday, April 01, 2007 10:14 AM
>Subject: [TowerTalk] Radials - What is the big deal?
>
>
>  
>
>>Rob - I share your concern with QST's cavalier attitude toward
>>radials. The real problem with statements such as those in the
>>February QST:
>>
>>"For verticlal radiators (including slopers), lay out radials if you
>>can --
>>one or more of any length and configuration.  Don't be discouraged if
>>you
>>hear that anything less than (take your pick: 25, 50, 120 and such)
>>will be
>>useless.  Baloney,!  Try whatever you can --- even none!"
>>
>>is that they encourage hams, particularly new ones, to put up
>>antennas without thinking about how they work or about their overall
>>performance.
>>
>>And this is particularly bad with verticals, where enough silicon oil
>>has already been spread.
>>
>>I can't imagine giving advice to try a vertical without some thought
>>to radials. There is a noticeable improvement in even adding a single
>>radial to a groiund rod only sustem. The ham that uses 4 quarter wave
>>radials would be much better off putting that 1 wavelength of wire
>>down as 10 one tenth wave radials.
>>
>>To encourage this cavalier attitude as to the role of radials in a
>>vertical antenna essentially says that we should ignore half of the
>>antenna system. I don't suppose that QST would publish an article on
>>how to build a dipole where only one side of the dipole needed to be
>>measured accurately. Yet they accept that kind of thinking for
>>vertical antennas.
>>
>>The role that radials play in vertical antennas is not a difficult
>>concept to grasp and it could be relayed in a paragraph or two. Once
>>one understands that the ground and hence the radials are actually
>>part of the antenna and contribute to teh overall antenna efficiency,
>>one has a much better idea of the importance of the ground and what
>>to use for radials. If the author did not want to address these
>>issues he could point to several useful references that have been
>>published in QST over the years. - Dr. Megacycle KK6MC/5
>>--
>>James Duffey KK6MC/5
>>Cedar Crest NM 87008
>>DM65
>>
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>>
>>
>>
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>>
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