Icom AT-140 Instruction Manual

2001 NEW2001 NEW
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6
INSTALLATION EXAMPLE
RDANGER: HIGH VOLTAGE!
NEVER touch the antenna element while tuning or
transmitting.
Antenna tuner location versus the strength of radiation from the same length of the D
antenna element
When the antenna tuner is installed on the deck with the same element length connected.
Good — Horizontal
The antenna tuner is installed at a
higher position and the element is in-
stalled horizontally.
Better — Inverted-L
The element is bent in the middle as an
Inverted-L antenna.
Best — Vertical
If the length of the antenna element is
limited because of installation space, a
longer vertical element will give a lon-
ger communication distance.
Style of the antenna element connection versus the strength of the radiation from the D
element
The vertical element should be connected at the end of the horizontal element.
Good — Long
The distance is longer between the
connection of the vertical element and
the end of the horizontal element.
Better — Short
The distance between the vertical element
and the end of the horizontal element is
shorter, compared with the one to the left.
Best — Direct
The vertical element is connected di-
rectly to the end of the horizontal ele-
ment.
Thickness of the Antenna element versus the strength of radiation from the element D
The thickness of the antenna element does not change communication quality much, but it should be as thick as
possible for better radiation from the antenna element.
Good — Regular size
Better — Thick Best — Thicker

Icom AT-140 Specifications

General

Compatibility	IC-M802
Product color	Gray
Frequency range	1.6 - 30 MHz
Brand compatibility	ICOM
Quantity	1