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Re: Topband: Relationship Between Ground Wave and Low-Angle Radiation

To: N4ZR <n4zr@comcast.net>, topband reflector <Topband@contesting.com>
Subject: Re: Topband: Relationship Between Ground Wave and Low-Angle Radiation
From: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Fri, 13 Sep 2019 09:39:58 -0700
List-post: <mailto:topband@contesting.com>
On 9/13/2019 6:31 AM, N4ZR wrote:
I don't think I've ever read anything on this topic.  Basically, what I'm asking is, could ground wave to a fairly nearby Skimmer be used as an analogue to low-angle radiation to assess the effectiveness of radial systems on an inverted L?  W3LPL is about 30 miles from me and has a very capable Skimmer Server-based RBN node.


A radial system has nothing to do with take off angle.
Take off angle is strictly affected by ground conductivity
over a much large area than even a "big" radial field.

If you want to improve your inverted L, change it to a
top loaded vertical (IE "umbrella" wires). That will make a lot more difference than adding radials.

Rick N6RK
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