Built in January 2006, this 160m Inverted L antenna has an
overall length of approximately 130 feet. Built between two
trees spaced 90 feet
a part, the vertical section is 85 feet and the horizontal component is the
residual 45 feet. There
are two 135 foot raised radials -- each running
approximately 10 feet above ground for their entire length. In addition,
there are four 67 foot ground-based radials and a single ground rod to complete
the ground system.
The following chart shows the comparative SWR readings
observed using four different
data
sources. The overall trend remains more-or-less the same even though the actual readings vary.
 Feed-point inside shed. Feed-point top right and ground bottom centre |
 Feed-point (top) and raised radial termination point (bottom) |
 Raised radial termination and connector to ground-based radials |
 Overall view of radial termination |
 Close-up view of ground termination |
 Ground radial connection including single ground rod |
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Last modified
May 27, 2006
by Paul B. Peters,
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