Topband
[Top] [All Lists]

Topband: Inverted L - newbie questions

To: topband reflector <Topband@contesting.com>
Subject: Topband: Inverted L - newbie questions
From: N4ZR <n4zr@comcast.net>
Date: Wed, 21 Aug 2019 11:55:41 -0400
List-post: <mailto:topband@contesting.com>
I just put up an inverted L, with a vertical length of about 60 feet, and a total of 135 feet.  It is fed through 16 turns of RG-400 on a ferrite core at the base. There are, as yet, no radials.

Because I was impatient to see what was going on, I grounded the shield to a single copper-plated ground rod and connected my MFJ259B. I expected a high R value, and I got one - 112-122 ohms.  But surprisingly (to me), lowest SWR was at 2.070 MHz, and X remained at zero over quite a wide range - all the way down to about 1.7 MHz.

Is this all to be expected?  I plan to put down at least minimum radials in the next few days, and would expect the R value to drop as I do so. Am I off-base?

--

73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
<Prev in Thread] Current Thread [Next in Thread>